scholarly journals REPRODUCING QUALITIES OF RAMS OF THE MOLDOVAN TYPE KARAKUL BREED

2020 ◽  
Vol 59 ◽  
pp. 92-96
Author(s):  
D. Rotari

Issues related to the reproduction of animals have been and remain one of the most complex and relevant problems of biology and are constantly finding a direct and effective way out into livestock farming practice. The rational use of breeding sheep as producers is limited by the lack of standard, objective methods and methods for the timely assessment of their reproductive ability. The article presents the results of evaluating the sperm production of rams-producers. For the first time, the freshly obtained sperm of rams of Moldavian type producers of the Karakul breed was evaluated using the macroscopic method - ejaculate volume, color and smell, as well as the microscopic method - motility, sperm concentration in the ejaculate, total sperm count in the ejaculate sperm movements (VAP; VSL and VCL) as well as the percentage of abnormal forms of sperm. The experiments were carried out on sheep producers grown on a pedigree farm of the experimental farm of the Moldavian Scientific and Practical Institute of Biotechnology in Animal Husbandry and Veterinary Medicine. As a result of the studies, it was found that the ejaculate volume on average was 0.99 ± 0.04 ml, motility was 0.95 ± 0.02 and sperm concentration 1.51 ± 0.14 billion/ml. The percentage of pathological forms in sperm averaged 13.72 ± 0.61, an indicator that characterizes the high quality of sperm. The average quality indicator of ejaculates obtained from ram-producers of the Moldavian type of the Karakul breed corresponds to physiological standards for the Karakul breed. The average percentage of pathological forms of sperm found in ejaculates indicates that the rams were in good conditions of feeding and keeping. According to research, we can say that the Moldovan type of Karakul rams can be successfully used to obtain high quality ejaculates suitable for freezing sperm at 196°C.

2020 ◽  
Vol 23 (11) ◽  
pp. 28-38
Author(s):  
Liudmyla Piddubna ◽  
Daria Zakharchuk ◽  
Ruslan Bratushka

The sperm quality of stud bulls is an important indicator on which depends the result of cattle reproduction. The aim of the study was to evaluate the Holstein bulls in terms of productivity and quality of sperm in the conditions of LLC “Ukrainian Genetic Company”. The study was carried out on livestock of 20 stud bulls of the Holstein breed of foreign selection, which were in the same conditions of feeding, keeping and use. The sperm production parameters were determined using an IVOS sperm analyser and evaluated in accordance with respective DSTU standard. Freezing resistance of sperm was estimated as a percentage ratio of sperm doses rejected after cryopreservation to their total amount. The absolute sperm efficiency of stud bulls was evaluated by the method of the experts of the Institute of Animal Breeding and Genetics nd. a. M.V. Zubets of National Academy of Agrarian Science. It was found that that stud bulls of LLC “Ukrainian Genetic Company” are characterized by sufficient fertility. They have produced, on average, 156 ejaculates within a year, which included 106 high-quality ejaculates (67.9%). Characteristics of sperm efficiency of experimental stud bulls are rather variable (Сv from 23.1-79.7%), and vary within the following limits: the number of high-quality ejaculates throughout a year – 32-173 pcs., native sperm obtained – 201-1016 ml, percent of rejected sperm – 3.1-76.1, doses of sperm obtained – 5755-61920 pcs. It was revealed that probable difference in sperm production indicators of sperm providers is associated with their individual characteristics. Volume of ejaculate ranges from 3.77 to 7.30 ml (d=3.57; td=16.6; P<0.001), sperm motility ranges from 7.2 to 8.3 points (d=1.1; td=11.1; P<0.001), sperm concentration in ejaculate ranges from 1.51 to 3.52 bln/ml (d=2.01; td=24; P<0.001), freezing resistance of sperm ranges from 59.6 to 99.6%. Holstein stud bulls of LTD “Ukrainian Genetic Company” have rather high sperm productivity index that ranges from 5.19 to 15.29 bln of motile spermatozoids in ejaculate. A strong positive correlation was found between motility and sperm concentration (r = +0.825; P<0.001), motility and the quantity of sperm doses obtained per year (r = +0.766; P<0.001), concentration and quantity of sperm doses obtained per year (r = +0.595; P<0.001)


Author(s):  
M. A. Glaskovich ◽  
V. A. Solyanik

Recently, many countries have tightened requirements for the quality of compound feed and its individual components including vitamins. However, the vitamins of grain and protein feed may not be available for assimilation by animals that have been destroyed or lost activity during storage. The purpose of this work was to provide scientific and practical substantiation of use in diets of sows biotin and folic acid to enhance their reproductive ability and improve the physiological state ensure, through the use of brooders, the best micro-climate in the area is received from off spring to enhance growth and the survival of piglets. The experimental part of the work has been performed at the pig breeding complex APC “Ovsyanka”, MAUE “Ovsyanka named after I. I. Melnik” in the Goretsky district in the Mogilev region in the Republic of Belarus. For the first time in the Republic of Belarus under the industrial technology of animal husbandry the use of biotin and folic acid additives in the diets of sows has been scientifically justified. The optimal doses of biotin and folic acid additives in the compound feed have been developed to increase reproductive ability and improve the physiological state of sows. The possibility of using cylindrical brooders with a truncated cone in combination with various sources of local heating in the piglets’ recreation area has been experimentally established. The economic feasibility of using biotin and folic acid additives in the diets of sows and brooders in the recreation area of their off spring has been proved.


2019 ◽  
Vol 22 (8) ◽  
pp. 931-938
Author(s):  
M. A. Kleshchev ◽  
V. L. Petukhov ◽  
L. V. Osadchuk

At present great attention is paid to studying genetic regulation of farm animal adaptations to environmental conditions. This problem is very important due to a wide expansion of highly productive cattle breeds created in Europe and North America. However, until the present no investigation of changing semen quality in bulls of imported breeds during their adaptations to environmental conditions of Western Siberia has been conducted. The aim of this study was to investigate semen quality peculiarities and the diversity of morphological sperm abnormalities in bulls of imported and local breeds kept in the environmental conditions of the southern part of Western Siberia. We determined sperm concentration, sperm count, and rate of sperm with progressive motility and percentage of morphologically normal spermatozoa. The rate of sperm abnormalities according to Blome’s classifcation was determined too. It was found that the mean values of sperm concentration, sperm motility and percentage of morphologically normal spermatozoa in the bulls investigated were similar to those in bulls kept in European countries. Inter­breed differences in these parameters were not found. However, bulls of the Red Danish, Angler, and Simmental breeds had a higher percentage of misshapen sperm head and pyriform sperm head than bulls of the Black­White breed. An inter­strain difference in sperm motility in bulls of the Black­White breed was observed. It was found that bulls of Reflection Sovereign 198998 strain had lover sperm motility than bulls of Wis Burke Ideal 1013415 strain. No inter­strain differences in sperm production, percentage of morphologically normal spermatozoa and rate of main sperm abnormalities were found. Thus, it has been found that the environmental conditions of the southern part of Western Siberia do not seriously affect the sperm production, sperm motility or percentage of morphologically normal spermatozoa in bulls. However, the increased rate of misshapen and pyriform sperm heads in the bulls of the foreign breeds points to a need to study sperm DNA fragmentation.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
S. N. Shankhwar ◽  
A. A. Mahdi ◽  
A. V. Sharma ◽  
Kishan Pv

Aim. The present study aimed to assess the effects of Nano Leo, a prosexual nutrient formulation, on libido, erection, and orgasm in patients with erectile dysfunction (ED). Methods. This was a prospective, single-center, phase IV efficacy study. Patients received two capsules for 7 days and thereafter one capsule through 90 days. Main outcome measures: primary endpoint was change in erectile function assessed using the International Index of Erectile Function (IIEF) questionnaire. Secondary endpoints included improvement in testosterone levels, FSH, LH, and prolactin levels; seminal parameters; and overall quality of life (QoL). Results. Our study included 99 men (mean age 32.2 ± 4.71 years). Mean erectile function domain score increased from 18.9 ± 5.67 at baseline to 23.7 ± 4.01 on day 90 (P<0.001). Similar improvements were observed in orgasmic function, sexual desire, intercourse satisfaction, and overall satisfaction domains of IIEF score which was seen as early as day 30. Improved IIEF corroborated with improvement in all QoL domains. From baseline to day 90, treatment with Nano Leo increased testosterone levels (5.04 ± 2.22 vs. 5.57 ± 1.53 ng/mL, P<0.001). Seminal parameters like sperm concentration (44.07 ± 48.28 vs. 56.21 ± 50.45 million/mL) and total sperm count per ejaculate (130.40 ± 156.05 vs. 142.5 ± 161.23 million/mL) significantly increased on day 90 compared to baseline. No changes were observed in hepatic and renal function parameters, and no adverse events were reported which promise the safety of the product, Nano Leo. Conclusion. Nano Leo showed improved libido, erection, and orgasm as evaluated by IIEF and QoL and was well tolerated. Therefore, Nano Leo could be an effective and safe pronutrient supplement in managing ED.


2016 ◽  
Vol 44 (2) ◽  
pp. 185-199 ◽  
Author(s):  
Jadzia Jagiellowicz ◽  
Arthur Aron ◽  
Elaine N. Aron

Sensory processing sensitivity (SPS) is a temperament trait found in around 20% of humans, which has been found to enhance responsiveness to diverse stimuli. In this study, we investigated for the first time the extent to which SPS, and its interaction with quality of parenting, predicts positive and negative experiences in response to emotional stimuli. Participants (N = 96) from the upper and lower quartiles on the standard SPS measure (the Highly Sensitive Person Scale) rated the valence and their arousal level when viewing emotionally evocative and neutral pictures selected from the International Affective Picture System. High (vs. low) SPS individuals rated pictures eliciting emotion, and especially positive ones, as significantly more valenced, and tended to respond faster to the positive pictures; also, high, vs. low, SPS individuals who had reported having high-quality parenting reported greater arousal in response to positive pictures. Overall, results suggest that high SPS individuals respond more strongly to emotional stimuli—especially positive—without being more aroused unless they had especially high-quality parenting.


2007 ◽  
Vol 274 (1617) ◽  
pp. 1505-1509 ◽  
Author(s):  
Nigel R Franks ◽  
James W Hooper ◽  
Anna Dornhaus ◽  
Philippa J Aukett ◽  
Alexander L Hayward ◽  
...  

We show that ants can reconnoitre their surroundings and in effect plan for the future. Temnothorax albipennis colonies use a sophisticated strategy to select a new nest when the need arises. Initially, we presented colonies with a new nest of lower quality than their current one that they could explore for one week without a need to emigrate. We then introduced a second identical low quality new nest and destroyed their old nest so that they had to emigrate. Colonies showed a highly significant preference for the (low quality) novel new nest over the identical but familiar one. In otherwise identical experiments, colonies showed no such discrimination when the choice was between a familiar and an unfamiliar high-quality nest. When, however, either all possible pheromone marks were removed, or landmarks were re-orientated, just before the emigration, the ants chose between identical low-quality new nests at random. These results demonstrate for the first time that ants are capable of assessing and retaining information about the quality of potential new nest sites, probably by using both pheromones and landmark cues, even though this information may only be of strategic value to the colony in the future. They seem capable, therefore, of latent learning and, more explicitly, learning what not to do.


2015 ◽  
Vol 59 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Anna Domosławska ◽  
Sławomir Zduńczyk ◽  
Wojciech Niżański ◽  
Andrzej Jurczak ◽  
Tomasz Janowski

Abstract Thirty clinically healthy dogs with poor semen quality were used in the study. Fifteen dogs were supplemented daily with selenium (0.6 mg/kg organic selenium from yeast) and vitamin E (5 mg/kg) per os for 60 d. The control group (15 dogs) was not supplemented. Semen was collected from all dogs by manual manipulation on days 0, 30, 60, and 90. The sperm concentration and motility parameters were evaluated with a Hamilton Thorne sperm analyser, version IVOS 12.3. For the assessment of sperm morphology, Diff-Quik stain was used. The percentage of live and dead spermatozoa was estimated on dried smears stained with eosin-nigrosin. The concentration of spermatozoa, most motility parameters determined (PMOT, VSL, VCL, ALH, BCF, RAPID, MEDIUM, SLOW, and STATIC), and the percentage of spermatozoa morphologically normal and live increased significantly (P < 0.05) after 60 d of supplementation. In the control group, there were no changes in motility parameters while the concentration and total sperm count decreased over the duration of the study. In conclusion, supplementation with selenium and vitamin E for 60 d can improve the quality of semen in dogs with lowered fertility.


OENO One ◽  
2012 ◽  
Vol 46 (4) ◽  
pp. 263
Author(s):  
Goran Zdunić ◽  
Irena Budić-Leto ◽  
Urska Vrhovsek ◽  
Iva Tomić-Potrebuješ ◽  
Edi Maletić

<p style="text-align: justify;"><strong>Aims</strong>:A four-year study (2007 through 2010) was carried out to determine agronomic, biological, and oenological characteristics of Dobričić grapevines so as to evaluate this cultivar and protect it from extinction.</p><p style="text-align: justify;"><strong>Methods and results</strong>: 38 characteristics from the OIV descriptor list were used to describe young shoot, mature leaf, cluster, and berry morphology of Dobričić grapevines. The dimensions of an average leaf were constructed from measured leaf variables. A typical Dobričić genotype at nine microsatellite loci is presented. ELISA analysis revealed high virus incidence and all samples tested were GLRaV-3 positive. The profile of different classes of polyphenols in Dobričić wine was determined using HPLC and spectrophotometry. The concentrations of polyphenols in Dobričić wine, especially anthocyanins, hydroxycinnamic acids and stilbenes, were high compared to major red wines reported in the literature. Descriptive sensory analysis was carried out to determine the aroma attributes describing a Dobričić monovarietal wine.</p><p style="text-align: justify;"><strong>Conclusion</strong>: Knowledge of the biodiversity of the grapevine cultivars of Croatia is still scant. This study provides for the first time ampelographic and oenological information on Dobričić grapevines and demonstrates its high quality potential.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: The results of the ampelographic characterization would be helpful in the identification and selection of Dobričić for cultivation in certain vine-growing areas. The outstanding quality of Dobričić makes it very promising for wine blending (colour improvement) and plant breeding purposes.</p>


Author(s):  
Stacey J Bell

Background and Objectives: Aging and weight gain often lead to reduced male libido, testosterone levels, and reproductive health functions. Younger men, who have reduced libido due to no under-lying medical or environment cause, are often prescribed medications. Non-pharmacological treatment usually includes weight loss. Materials and Methods: The aim of this prospective, single-arm, four-month study was to evaluate the effect of a nutrient-dense dietary plan using portion-controlled, pre-packaged functional foods on body weight, sexual performance, free testosterone, semen volume, and sperm concentration in overweight men aged 20-50 years of age. Results: Eleven individuals began the study, and six completed it. Participants consumed either four or five nutrient-rich functional foods daily and ate mostly healthy foods otherwise. Baseline mean weight was 107±21 kg, decreasing to 97±24 by week 8, but was 104±19 at week 16. Mean waist circumference decreased at each measurement: 112±13 cm at baseline, 110±12 cm at week 8, and 108 ±11 cm at week 16. Everyone, except one subject who had no change, experienced a decrease in waist circumference of 2-8 cm. All participants for whom data were available experienced increases in salivary testosterone concentrations between 18 and 87 pg/mL; by week 4, all had normal readings. At baseline and throughout the study, all but one person had normal semen volumes (i.e., at least 1.5mL). Sperm concentrations were Optimal at baseline for three participants (i.e.,≥ 55 M/mL), and the remaining two had Moderate values (16-54 M/mL, inclusive). Sperm concentrations varied throughout the study with three men experiencing Moderate concentrations at week 4, and two had Low concentrations (i.e., 15 M/mL). At week 8, all five subjects had Moderate sperm concentrations. By week 12, four had Moderate readings and one had an Optimal sperm concentration; at week 16, this improved to three with Moderate readings and two had Optimal concentrations. Total sperm counts (semen volume x sperm concentration [in millions]) varied among the participants. Between baseline and week 16, two participants had a lower total sperm count (decrease of 12% and 50%), and three had increased counts (all had 40-45% increases). Sexual health was assessed via a questionnaire (Sexual Health Inventory for Men [SHIM]). Upon entry into the study, all participants had suboptimal SHIM scores (i.e.,  21); at the end, three of the six normalized. For the general quality of life questions, scores tended to be better for each quality of life indicator, except gastrointestinal issues (GI), which worsened over time. The greatest improvements were seen in energy level, diet quality, and passion. Conclusions: Overweight men with low libidos experienced benefits from consuming nutrient-dense functional foods for anthropometric measurements, quantitative measures of testosterone, semen volume, sperm concentration, and subjective measures of quality of life. These preliminary results are encouraging, and we are continuing to recruit more subjects to confirm these findings.


2020 ◽  
Vol 203 ◽  
pp. 04001
Author(s):  
Inessa Zaсhesova ◽  
Stanislav Kolobov ◽  
Natalia Shagaeva

For the first time, studies were conducted on changes in the consumer properties of cutlets with powder from Jerusalem artichoke tubers during storage. In solving these problems, generally accepted special organoleptic, physicochemical, microbiological, structural and mechanical methods for studying the properties of finished products were used. It has been established that venison cutlets with Jerusalem artichoke tubers powder are characterized by greater stability of consumer properties compared to cutlets without Jerusalem artichoke tubers powder. During freezing and subsequent storage of cutlets, a decrease in water binding capacity and an increase in losses during heat treatment were noted. It should be noted that these changes were less pronounced in cutlets with powder from Jerusalem artichoke tubers, compared with cutlets without powder from Jerusalem artichoke tubers. It was found that cutlets with powder from Jerusalem artichoke tubers produced with powder from Jerusalem artichoke tubers showed a lower level of lipid oxidation compared to cutlets without powder from Jerusalem artichoke tubers. The results of the tasting assessment confirmed the high quality of venison cutlets with Jerusalem artichoke tubers powder.


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