scholarly journals REPRODUCING QUALITIES OF SOWS OF DIFFERENT FAMILIES OF LARGE WHITE AND POLTAVA MEAT BREEDS IN THE TRIBAL HERDS OF PIGS OF KHMELNYCHINA

2021 ◽  
Vol 61 ◽  
pp. 192-200
Author(s):  
I. V. Verbuch ◽  
H. B. Bratkovska
Keyword(s):  
Live Weight ◽  
Reproductive Capacity ◽  
Evaluation Index ◽  
Correct Selection ◽  
Large White ◽  
Average Value ◽  
Reproductive Ability ◽  
The Family ◽  
Modal Class ◽  
White Breed

Goal. To assess the reproductive ability of inspected sows of different families of large white and Poltava meat breeds in breeding herds of Khmelnytsky region on the main selection signs using the evaluation indices of reproductive qualities. Methods. Comparison, zootechnical and biometric analyzes. Results. The reproductive qualities of sows of different families in breeding herds of pigs of large white and Poltava meat breeds of farms of Khmelnytsky region were evaluated. Among the families of large white breed, the best indicators for assessing the reproductive capacity of inspected sows were found in the family of the Sorceress, in which the main feature – fertility by modal class of distribution was 10.8 heads piglets per 1 farrowing, which is 2.8% more than the Taiga family of the same class. According to the modal class M+, the fertility of the Sorceress family (12.0 piglets per farrowing) was 0.3 heads higher than that of the females of this class of the Taiga family (11.7 heads per farrowing). The modal class М¯ of the firstborn family of the Sorceress was the best with a fertility of 9.7 heads, which is 3.2% higher than the Taiga family. Indicators of the number of piglets at weaning at the age of 30 days, the weight of the nest at weaning, the live weight of 1 head of piglets and preservation of offspring (9.5 heads; 94.1 kg; 9.9 kg; 87.9%), by class (М°), the Sorceress family was 3.2 heads bigger; 7.4 kg; 2.0 kg and 0.5% compared to the Taiga family. As a result of ranking sows by evaluation indices of reproductive qualities, I (evaluation index by a limited number of traits) and P (complex evaluation index) had an advantage by the most prolific sows of the Sorceress family of class M+, in which these indices were 43.0 and 96.1 points. In the process of research of reproductive ability of sows of Poltava meat breed of different families it was established that on the basis of fertility the Rosinka family is the best, whose fertility by distribution by class (М°) was 10.7 heads. piglets per 1 farrowing. It exceeds the average value for 5 families: 0.4 heads of Dorza and Vorskla families, 0.6 goals. Bystro's family and 1 goal. the Palm family. According to the modal class M+, the Rosinka family (11.8 piglets per 1 farrowing) has 0.3 heads more fertility than the Dorza and Vorskla families, 0.6 goals higher. and 0.1 heads than the Bistra and Palma families. The lowest fertility of sows in the class (М°) was recorded in the Dorza family (8.9 heads of piglets per farrowing). It should be noted that the Dorza family and the smallest Palma family in the M+ class have the best nest weight at weaning at the age of 45 days (138.7 and 144.2 kg), which is 18.6 more than in the М° class. and 20.7 kg. According to the indicators of the number of piglets at weaning and live weight of 1 head, the Palma's family of class M+ (10.6 heads and 13.6 kg) is distinguished. The best preservation of the offspring in the Palma's family of class M¯ = 94.7%. As a result of ranking sows of different families of Poltava meat breed according to the estimated indices of reproductive qualities, it was noted that the highest number of points in the modal class (М°) was obtained by the family Rosinka I = 40.8 and P = 94.8, which is more than the average for all families by 2.1 and 3.6 points. According to the evaluation indices (I) and (P), the best were sows of the Rosinka family of class M+, in which these indices corresponded to the values of 42.7 and 99.4 points. Conclusions. Among different families, the best results of assessing the reproductive capacity of sows on the main selection traits and evaluation indices were found in the families of the Sorceress of the Great White breed and the family of Rosinka of the Poltava meat breed, which should continue to be used for breeding in breeding herds of pigs. An important factor in increasing the productivity of sows, of course, should be the correct selection of the level of reproductive breeding traits and a significant increase in feeding and housing conditions.

Indexes of reproductive ability and their repeatability in sows of different genotypes, taking into account the polymorphism g.1426g> a of the Mc4r gene

2020 ◽  
pp. 49-62 ◽  
Author(s):  
Viktor Khalak ◽  
Vasyl Voloshchuk ◽  
Konstiantyn Pochernyaev ◽  
Serhii Smyslov ◽  
Maria Ilchenko
Keyword(s):  
Receptor Gene ◽  
Live Weight ◽  
Multiple Births ◽  
Large White ◽  
Mc4r Gene ◽  
Litter Weight ◽  
Reproductive Ability ◽  
Large White Breed ◽  
White Breed ◽  
Consolidation Coefficient

The results of studies of the reproductive ability of sows of different genotypes are given taking into account the polymorphism g.1426G> A of the MC4R gene, the factor of repeatability of characters is determined, and the economic efficiency of the research results is calculated. The experimental part of the research was carried out in the conditions of the «Druzhba-Kaznacheevka» LTD in Dnipropetrovsk region. The objects of research were sows of the Large White breed. It was determined that sows of the main herd, according to signs of reproductive ability, belong to class I and class elite. The experiment showed that sows of genotype AG exceeded their peers of others (GG and AA) in terms of “born piglets total, heads” by 1.6 and 0.7 heads, “Live piglets born (multiple births), heads - by 1 6 and 0.9 heads, “the mass of the litter at the time of birth, kg” - by 2.7 - 1.3 kg., “the mass of the litter at the time of weaning at the age of 28-35 days, kg” - by 5, 1 - 3.9 kg. The difference between animals of the indicated genotypes is: for large-foetus - 0.06-0.01 kg, the index "evenness of the sow’s litter in live weight of piglets at birth, points" - 1.05-1.84 points, index of N. D. Berezovsky - 3.75 -2.36 points. The index of the safety of piglets before weaning ranged from 84.4 to 93.0 %. It was proved that the minimum value of the index “evenness of the sow’s littar in live weight of piglets at the time of birth, points (7.76 ± 1,082 points) are characterized by sows of genotype AA, in which the rate of multiple pregnancy ranged from 8 to 14 pigs, and the value of the sign“ large-foetus, kg "equaled 1.37 kg. The repeatability coefficient for sows of the main herd and sows of the Large White breed of different genotypes for the melanocortin 4 (MC4R) receptor gene ranges from -0.916 ± 0.1418 (І-IV farrow, genotype - GG, sign - “piglet safety before weaning, %) to 0.978 ± 0.0738 (I-V farrow, genotype - GG, sign - “large foetus”, kg ”). The maximum value of the phenotypic consolidation coefficient was found in sows of genotype AA according to the following quantitative characteristics: “live piglets (multiple births), heads.”, “litter weight at the time of birth, kg”, “litter weight at weaning age of 28-35 days, kg "," the safety of piglets before weaning ,% ". The sows of the genotype GG belong to the unconsolidated group according to the signs of reproductive qualities. The use of sows of the genotype for the melanocortin 4 (MC4R) AG receptor gene provides additional products at the level of 5.15 %, and its cost is 165.41 UAH /head. Keywords: sow, breed, reproductive ability, MC4R gene, genotypic consolidation coefficient, variability, correlation, repeatability.

Optimal timing of artificial insemination in gilts

2020 ◽  
pp. 81-87
Author(s):  
Svitlana Usenko
Keyword(s):  
Reproductive Cycle ◽  
Live Weight ◽  
Reproductive Capacity ◽  
Optimal Timing ◽  
Cervical Canal ◽  
Large White ◽  
The Third ◽  
Large White Breed ◽  
Group I ◽  
White Breed

In the article it is highlighted the results of research on the features of cervix permeability and optimal periods of fertilization in pubertal gilts. Five high-productive boars of the Large White breed, aged 18-36 months, were used in experiments and evaluated for the quality of sperm. The start of the estrus was carried out using a test boar. In the first experiment to determine the permeability of the cervical canal, 3 groups of the Large White breed were formed for 15 heads in each, which were inseminated at the onset: of the first (1st group), the second (2nd group) and the third period of the estrus at the age of 6 - 8 months. Gilt were fertilized with a sperm dosage of 70 ml of a diluent containing 2 billion of spermatozoa. In the second experiment to determine the optimal timing of insemination, 66 gilt of the Large White breed aged 8 to 9 months, live weight 110-130 kg, with clear signs of the start of proestrus, estrus and diestrus were used. The beginning of the estrus was set twice a day at 7 o'clock and 19 o'clock. The doses of sperm (2 billion of spermatozoa in 70 ml of diluent) were injected into the gilts according to the following scheme: Group I - after the prescribed period of the estrus - 0 hours; Group II - after 6 hours; III - group - 12 hours; Group IV - 18 hours; V - 24 hours; VI - 36 hours. It has been determined that cervical permeability increases with age of gilts and the number of reproductive cycles. In gilts, in the first reproductive cycle, the permeability of the cervical canal is 4.61 cm and intensively increases twice: 1.9 (p <0.001) (2nd estrus) and 2.5 times (p <0.001) (3rd estrus). The introduction of sperm by the intracerviсal method on the third period of the estrus allows them to be fertilized at a level of 86 % and receive 10.2 newborn piglets.Cervix permeability in gilts increases from the beginning of the estrus for the next 24 hours. The high indexes of their reproductive capacity are determined at the introduction of sperm dosage in 24-36 hours after the onset of the estrus. The number of live newborns piglets was maximal when sperm is introduced into cervix of gilts in 12; 24 and 30 hours after the start of the estrus. The live weight of newborn piglets depends on the period of the introduction of sperm into the pigs, being maximal at the start of the estrus, and in 24 and 30 hours after the introduction of sperm. The postponement of the procedure up to 36 hours leads to a decrease of this index (p <0.001). Key words: reproductive cycle, estrus, cervix, fertilization, sperm, gilt.

scholarly journals Cost-effective methods for evaluation of pig breeding value in breeding farms in Khmelnytskyi region

2020 ◽  
Vol 93 (8) ◽  
pp. 171-179
Author(s):  
I. Verbuch ◽  
◽  
H. Bratkovska ◽  
Keyword(s):  
Average Daily Gain ◽  
Live Weight ◽  
Cost Effective ◽  
Breeding Value ◽  
Large White ◽  
Young Stock ◽  
Average Value ◽  
White Breed ◽  
Fat Thickness ◽  
Breeding Farms

The results of estimation of breeding value for Large White and Poltava meat pig breeds in breeding farms of the region by cost-effective methods are presented, namely: combined assessment of repair young stock on person’s productivity, estimation indices of fattening and meat qualities and new method BLUP. The best indicators for assessing the breeding value of animals were found on the basis of using the modern, most promising method BLUP, as it is considered the most accurate. The average value of the BLUP index (parent lines) for boars of Large White breed is 101.71±1.681, pigs – 96.94±0.724 points and Poltava meat breed, respectively, 106.23±2.167 and 93.65±0.719 points. The most positive correlation between live weight of piglets at weaning with their body length (r=0.16), average daily gain (r=0.19) and fat thickness (r=0.24), average correlation between the indices of fattening and meat qualities according to Berezovskyi M.D. and Tailer B. (r=0.56) P>0.99 and a weak correlation between live weight of piglets at weaning and the BLUR index (r=0.21) P>0.99.

scholarly journals REPRODUCTIVE CAPACITY OF LARGE WHITE BREED PIGS DEPENDING ON THE LINEAR AFFILIATION

2020 ◽  
pp. 61-64
Author(s):  
Alexander Sergeevich Filatov ◽  
Margarita Vasilievna Zabelina ◽  
Dmitry Vladimirovich Nikolaev ◽  
Viktor Vladimirovich Ponomarev ◽  
Bogdan Alexandrovich Sherstyuk ◽  
...  
Keyword(s):  
Live Weight ◽  
Reproductive Capacity ◽  
Volga Region ◽  
Large White ◽  
Lower Volga Region ◽  
Economic Experiment ◽  
Large White Breed ◽  
Lower Volga ◽  
Volgograd Region ◽  
White Breed

The article presents data on the study of the reproductive qualities of purebred pigs of a large white breed of the pig breeding complex in the Lower Volga region (PZK named after Lenin Surovikinsky district of the Volgograd region (54 thousand pigs). 59 heads of pigs of the Taiga family were selected for scientific and economic experiment, which were inseminated with boars-producers of different lines. 3 groups were formed: 25 heads were inseminated with the seed of boars-producers of the Leopard line; 18 heads – the SWAT line and 16 heads-The F. Marshal line. It was found that in The leopard line at 120 days of age, the live weight is higher by 2.75 kg than in the SWAT line and 2.27 kg than in The F. Marshall line. Analyzing the data obtained in the course of research of young animals, we can conclude that in percentage terms, the largest number of boars in the F. Marshall line is 54.35%, which is higher in comparison with analogues from The leopard and SWAT lines by 13.06 and 11.56%, respectively. The highest indicators were obtained for animals of The F. Marshall line.

THE IMPORTANCE OF THE FAMILY FOR GENEALOGICAL STRUCTURE OF VOLYN BEEF OF CATTLE

2016 ◽  
Vol 52 ◽  
pp. 82-94 ◽  
Author(s):  
A. Ye. Pochukalin
Keyword(s):  
Beef Cattle ◽  
Live Weight ◽  
Breeding Value ◽  
Farm Families ◽  
Cattle Breeding ◽  
Reproductive Ability ◽  
The Family ◽  
Minimum Number ◽  
Related Group ◽  
Economic Use

One of the ways of increasing level of animal economically useful traits is selection work with farm families. In pedigree cattle breeding of Ukraine families are a statistical component of breed genealogy. Among the main scientific works on working with families, it should be noted minimum number of female ancestors, proposed by D. T. Vinnichuk, to determine the breeding value, different categories, classification and techniques for evaluating related groups of females. The aim of our research was to analyse importance of farm families for genealogical structure of the breed. The research was on basis of data of primary breeding records at the herd of Volyn Beef cattle of “Zorya” breeding farm, Kovel district, Volyn region. Akula 102, Galka 37 and Galka 1537 families belonging to Krasavchyk 3004 bloodline, Smorodyna 613, Korona 2382 and Visla 1016 families – Tsebryk 3888 bloodline, Kalyna 212, Verba 1536 and Garna 536 families – Yamb 3066 bloodlines, Kazka 433, Galka 421 and Bystra 1124 families – Buinyi 3042 bloodline, Rozetka 1313, Arfa 599 and Bulana 943 families – Sonnyi-Kaktus 3307-9828 bloodline, and Palma 275, Desna 870 and Veselka 444 families – Mudryi 9100 bloodline were characterized. Belonging to a bloodline was determined by the father's side of female ancestors. Structural units of families: branches, branching with identifying the best individuals on breeding traits were submitted to identify the best combinations and successful use of closely related breeding. Comparing assessment of related groups of females on the main breeding traits belonging to Krasavchyk 3004 bloodline, it was noted that the cows of Akula 102 family predominated in live weight at 5 years’ age, milk ability and economic use duration, whereas the cows of Galka 1537 family – on traits of reproductive ability. Smorodyna 613 family of Tsebryk 3888 bloodline had high duration of economic use and cows’ live weight at 5 years’ age compared with Korana 2382 and Visla 1016 families with equal values of the exterior traits (height measures) and coefficient of reproductive ability. The families of Mudryi 9100 bloodline in terms of reproduction (calving interval, coefficient of reproductive ability) had the highest figures of cows’ milk ability and live weight. The cows of Bulana 943 family had a considerable predominance over representatives of Rozetka 1313 and Arfa 599 families of Sonnyi-Kaktus 3307-9828 bloodline by main economically useful traits. High indices of reproductive ability were noted in these families. Heifers of the families of Buinyi 3042 bloodline had high live weight at 18 months’ age at average values of milk ability and cows’ live weight at 5 years’ age. More equal figures of growth rate, exterior and economic use duration were observed in the cows of Kalyna 212, Verba 1536 and Garna 536 families of Yamb 3066 bloodline. Breeding by families in beef cattle breeding is an important element of selection, because it allows to evaluate not only related group of female ancestor, but also to analyse a successful combination with lines and purposeful use of closely related breeding by the best representatives of a breed.

The use of premix in feeding of young pigs on fattening

2020 ◽  
pp. 54-59
Author(s):  
A. S. Ivanova ◽  
N. V. Dunaeva
Keyword(s):  
Positive Impact ◽  
Live Weight ◽  
Feed Additives ◽  
Correct Selection ◽  
Control Group ◽  
Pork Meat ◽  
Large White ◽  
Young Pigs ◽  
Experimental Group ◽  
Selection Of

Increasing the production of pork meat requires careful work not only in terms of breeding, but also in the organization of complete feeding of animals, the correct selection of feed and feed additives containing the necessary nutrients. The purpose of the work was to analyze the use of premix in feeding young pigs on fattening. Two groups of fattening young pigs (Large White×Landrace) have been selected for the researches using the method of analogous groups, taking into account the breed, age, and live weight per 20 heads in each group with a live weight of 35 kg. Pigs of the control group have received the main economic diet, and animals of the experimental group have received an additional premix Khutorok at the rate of 10 g of premix per 1 kg of feed. The results have shown that the best age to reach 100 kg was in the experimental group of pigs – 215,8 days, which received premix with feed that characterizes their higher precocity by 36,3 days (P < 0,001) than in the control group of animals. The use of this premix had a positive impact on the livability of young animals, in the experimental group it was by 9,3 abs.% more than in the control group of animals. Thus, the best fattening traits have been possessed by young pigl of the experimental group have been received the premix Khutorok in their diet at the rate of 10 g of premix per 1 kg of feed. The obtained data indicate the feasibility of using the premix Khutorok in the feeding pigs for fattening.

scholarly journals EFFICIENCY OF INTRAUTERINE INSEMINATION IN BREEDING SOWS

2017 ◽  
Vol 53 ◽  
pp. 254-259
Author(s):  
V. O. Melnik ◽  
O. O. Kravchenko ◽  
О. S. Kohut
Keyword(s):  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Live Weight ◽  
Reproductive Technologies ◽  
Breeding Value ◽  
Large White ◽  
Large White Breed ◽  
Significant Difference ◽  
White Breed ◽  
Breeding Farms

Improving of fertility indicators and reproductive qualities of sows during artificial insemination in farms of different specializations is very topical issue. The introduction of artificial insemination of sows on breeding farms by the spermdoses of optimum volume, by the frozen-thawed and sex sperm requires the introduction of innovative reproductive technologies. The use of economical methods of artificial insemination of sows using a minimum number of sperm in a small volume of spermdose in order to achieve high rates of fertility and prolificacy was proven in numerous experiments of the authors. Significantly reduced spermdose may be sufficient if the sperm enters deep enough into the uterus. Vitality of sperm does not depend on the size of spermdose, but the best place for sperm to survive one oviducts where they keep the fertilizing capacity from 9 to 27 hours. So deep intrauterine insemination of sows improves conditions for sperm survival The aim was to study the feasibility and justification for widespread implementation in to production on breeding farms of intrauterine insemination of sows morder to increase their fertilization and prolificacy and  to save the boar sperm with the highest index of breeding values. Experiments were conducted in terms of selection and genetic center of Agrofirm "Mig-Service-Agro" in Mykolaiv region. In the experiment used 65 sows of live weight of 280-320 kg wiht 2-4 farrowing were. Sows in sexual hunting were showed once daily in the morning using a boar-prober. Artificial insemination was performed twice: the first time - in the afternoon and at 14-16 p.m. The second time – in the morning of the next day at 9-10 am. For artificial insemination of sows were ed using experimental spermodes with volume of 40 ml which contained 1.5 billion of a Active sperm. For the dilution of sperm was used Durasperm - KRUUSE (Denmark) the period of sperm perpetuation is 5-7 days. To enter the were semen used catheters Magaplus S, (Spain) for intrauterine insemination of sows. Analysis shows that the period from weaning to insemination has significant difference comparing sows of large White breed with Landrace breed (p <0.001), with genotype sows F1 (p <0.01) and sows of the Duroc breed (p <0.05). For all selected 65 sows duration of suckling period, was estimated which averaged 32.2 days and the average time from weaning of pigs to their sexual inclination and the first intrauterine insemination 6.8 days that meets the physiological norm. After intrauterine insemination of sows of then 48 farrowed, which wich made for 73.9%. іncluding live 5 emergency farrow  were obtained, representing 10.4% of all amount. Percentage of farrow is considered physiologically normal – 80%, or more of total insemined sows. The very low percentage of farrow 53.3% had of sows F1, and the highest percentage was found by sows of the Duroc breed – 85.7%. Pregnency of sows were received just 17, which made 26.1% and highest percentage – 46.7% was set by sows F1. Analysis of the pregnancy sows shows that on average it is 116.2 days was the longest – 117.1 days was set in Landrace breed sows and the short est 115.5 days in Large White breed, but the difference is not significant. 571 pigs were received, іncluding live 451 head, which is 78.9%. The largest percentage of іncluding live piglets obtained from sows F1 – 82.5%, and the lowest in Landrace breeds – 77.0% and Large White – 77.3%. Exit of all piglets per sow without emergency farrowings is 12.2, іncluding live – 9,8. The highest yield were obtained piglets from sows F1 – 13.1, іncluding live – 10.9, the lowest yield of sows of the Duroc breed – 10.6, іncluding live 9.1, which has significant difference compared with the control (IDPs) and other breeds.  After intrauterine insemination 8 sows showed cyclic deregulation in 20-25 days, ie repeated sexual hunt took place on average 22.3 days. These sows were inseminated by not fractional way, they farrowed and an average litter just 13.1 piglets per sow, іncluding live - 11.3 was obtained. Repeating after intrauterine insemination on 45-48-49 day in the sexual hunt came about three sows for artificial insemination by not fractional method 3 farrowed and was obtained output – 13.3 piglets, іncluding live – 11.7. It should be noted that the best sow Large White breed №12 after intrauterine insemination bore 16 pigs, іncluding live 11, sow of Landrace breed №1556 – 18 pigs, іncluding live 12, Duroc №5888 – 13 pigs, іncluding live 11, sow F1 №167 – 20 pigs, іncluding live 14 pigs. Breeding requires more careful handling with major sows taking into account their breeding value and cost, that’s why we believe that there is no need to risk causing injury genitals with intrauterine insemination if a sufficient number of spermdoses of boars-sires exist.

The use of moist barley in diets for growing pigs

1970 ◽  
Vol 12 (4) ◽  
pp. 561-568 ◽  
Author(s):  
R. M. Livingstone ◽  
D. M. S. Livingston
Keyword(s):  
Dry Matter ◽  
Live Weight ◽  
Matter Content ◽  
Growing Pigs ◽  
Dry Matter Content ◽  
Feed Conversion ◽  
High Moisture ◽  
Large White ◽  
Large White Breed ◽  
White Breed

SUMMARYA total of 156 pigs of the Large White breed were used in a series of four experiments to test the suitability of barley which had been stored with a high moisture content as an ingredient in the diets of growing pigs. Barleys with mean moisture contents of 26·3%, 28·1% and 21·2% and a range from 19·6% to 30·5%, from three successive harvests were used.In all the trials there was evidence that the use of moist barley in diets for growing pigs had an adverse effect on live-weight gain and feed conversion ratio, the effect being independent of whether feed intakes were equated on the basis of the dry-matter content of the diets. In one of the experiments performance was depressed to the extent of causing changes in carcass characteristics. The performance of pigs given rolled barley was similar to that of others given ground barley.

scholarly journals METHODS OF EVALUATION OF BREEDING VALUE OF LARGE WHITE BREED PIGS OF THE BREEDING PLANT OF SE “PASICHNA” DEPARTMENT OF KHMELNYTSK REGION

2020 ◽  
Vol 60 ◽  
pp. 5-11
Author(s):  
I. V. Verbuch ◽  
H. V. Bratkovska
Keyword(s):  
Body Length ◽  
Average Daily Gain ◽  
Live Weight ◽  
Thickness Measurement ◽  
Breeding Value ◽  
Large White ◽  
Large White Breed ◽  
White Breed ◽  
Fat Thickness ◽  
Daily Gain

Goal. To accelerate the selection process and create populations of pigs with high level of productivity to assess the most effective modern methods breeding value of large white pigs in the SE "DG" Pasichna "Institute of Feed and Agriculture Podillya NAAS" Starosinyavsky district of Khmelnytsky region on the basis of a combined assessment of repair young for their own productivity and assessment meat qualities by MD Berezovsky and B. Tyler and the most promising method BLUP. Methods. Comparison, zootechnical and biometric analyzes. Results. The breeding value of pigs of large white breed of the breeding farm of SE "Pasichna" ICSGP NAAS "Starosinyavsky district of Khmelnytsky region by modern effective methods, namely: BLUP. According to the average indicators of the combined assessment of own productivity of animals at control fattening, taking into account their live weight on the date of birth and weaning, average daily gain, live weight and age of 100 kg, body length and fat thickness, boars significantly outweighed pigs. Compared with pigs, their live weight at the date of birth and weaning (at the age of 30 days) was higher by 0.1 and 0.81 kg. The age of reaching a live weight of 100 kg exceeded by 5.43 days, the average daily gain of 0.016 kg. Live weight and body length of pigs on the date of fat thickness measurement was greater by 4.04 kg and 1.03 cm. Lifetime fat thickness at three measurement points at the level of 6–7 thoracic vertebrae, on the buttocks and in the midpoint of the back between withers and buttocks was thinner by 0.92; 0.94 and 1.06 mm. Evaluation indices of fattening and meat qualities by growth energy and fat thickness (Ia) and average daily gain and fat thickness (Iv) in boars indicate their higher level by 2.07 and 7.67 points compared to pigs and are equal to, respectively, 95.12 ± 1.95 and 152.96 ± 2.38 points. The coefficient of variability (Cv, %) of indicators of own productivity and estimated indices of fattening and meat qualities of repair boars ranged from 1.92% (body length on the date of fat thickness measurement, cm) to 15.12% (age of live weight 100 kg, days), repair pigs – from 4.63% (body length on the date of fat thickness measurement, cm) to 28.19% (index of assessment for growth energy and fat thickness, (Ia), points). The best average values of indicators of breeding value of animals are found on the basis of modern, most promising method BLUP, because it is considered in terms of mathematics, statistics and selection is the most accurate, well-founded, has the best theoretical basis and the lowest error variance. The average value of the BLUP index (parent lines) for boars of large white breed is 101.71 ± 1.681, pigs – 96.94 ± 0.724 points. At the same time, boars outweighed pigs by 4.77 points. The most positive correlation between live weight of piglets at weaning with their body length (r = 0.16), average daily gain (r = 0.19) and fat thickness (r = 0.24), the average correlation between the indices of fattening and meat qualities according to MD Berezovsky and B. Tyler (r = 0.56) P > 0.99 and the weak correlation between live weight of piglets at weaning and the BLUR index (r = 0,21) P > 0.99. It should be noted that there are almost no correlations between the fattening and meat quality indices of pigs and the BLUP index. Conclusions. In the conditions of breeding and specialized farms for the production of commercial pork in the region, to determine the breeding value of animals for further reproduction of their own herd and sale to other breeding farms of Ukraine, to systematically assess repair young animals for their own productivity and clear qualities of pigs and the most perfect BLUP index.

scholarly journals Influence of the hormonal background on the morphological replacement piglets

2018 ◽  
Vol 20 (92) ◽  
pp. 172-177
Author(s):  
I. I. Stupar
Keyword(s):  
Thyroid Hormones ◽  
Endocrine System ◽  
Live Weight ◽  
Hemoglobin Content ◽  
Large White ◽  
Large White Breed ◽  
Age Related ◽  
Genotype 2 ◽  
Morphological Composition ◽  
White Breed

The puberty period in pigs depends on the functional activity of the endocrine system, which has an effect on the blood through the connective tissue. It has been established that steroid and thyroid hormones regulate the processes of metabolism and proliferation, differentiation and apoptosis of cells. The aim of the research was to establish the peculiarities of formation of the morphological composition of blood under the influence of steroid and thyroid hormones in the process of puberty in different directions of productivity in the pigs. Experiments were performed on two groups of clinically healthy pigs of Pietrain breed and Large White breed. To assess the hormonal and morphological blood was taken from pigs from the anterior hollow vein in the 4-, 5-.6-, 7-month-old age (when their live weight reaches 100 kg). The predominance of hemoglobin content and the amount of erythrocytes in the blood of piglets of Pietrain breed over a Large White breed on the 120–150th day of development (P < 0.05) was observed, against the background of the general decrease in leukocytes in pigs of both breeds at the age of 5 months with the next gradual increase. The age-related changes in the leukocyte formula were directly related to the direction of animal productivity. In the Large White breed, from the beginning of the experiment, there was an increase in the number of rodenuclear neutrophils to 210-day-olds, followed by a sharp decreasing on 36.4%. In Pietrain breed, the level of the rodenuclear neutrophils decreased on 28.6% (P < 0.01) at the age of 5 months, followed by a sharp increasing over the coming months. From the 5th to the 7th months of the development of animals, the concentration of estradiol decreased in the first genotype 2 times (P < 0.05); in the second genotype – 1.9 times (P < 0.01). The content of thyroxine and triiodothyronine increased in the blood serum in Pietrain breed pigs (P < 0.01) and Large White breed (P < 0.001) in the period from 120th to 180th day of development. It was found that the amount of progesterone in Large White breed  was higher relatively to Pietrain breed in all investigated periods. The content of estradiol in pigs of both breeds from the 120th and the 150th day of development tended to decrease – by 2.8 times (P < 0.001) in Large White breed, 1.4 times (P < 0.05) in Pietrain breed, and testosterone increases, respectively, 2.1 (P < 0.05) and 1.9 (P < 0.05) times. The significant influence of progesterone on the number of lymphocytes and common leukocytes in Pietrain breed pigs was established. The level of estradiol significantly influenced the number of granulocytes in Pietrain breed pigs at the age of 5 months (r = 0.92 ... 0.99), and in animals of Large White breed the maximum correlation level was observed at the achievement of the 150th (r = 0.61) and 180 days of development (r = 0.94).

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