scholarly journals The effect of carnitine on hatching rate and metabolic profile of blood in breeding layers

2011 ◽  
Vol 49 (No. 12) ◽  
pp. 517-523 ◽  
Author(s):  
J. Thiemel ◽  
P. Jelínek
Keyword(s):  
Blood Plasma ◽  
Biochemical Parameters ◽  
Metabolic Profile ◽  
Practical Importance ◽  
Hatching Rate ◽  
Egg Hatching ◽  
New Knowledge ◽  
Positive Effect ◽  
Scientific Aspect ◽  
Biochemical Examination

We examined the effect of orally administered L-carnitine (at a dose of 30 mg per kg of feeding mixture) on egg hatching and some haematological and biochemical parameters of blood plasma in COBB 500 breeding layers of meat type. The experimental results confirmed a positive effect of L-carnitine, which increased the hatching rate significantly (P ≤ 0.05) by 8.89% as compared to the control. This positive effect resulted from a highly significant (P ≤ 0.01) decrease in the number of unfertilized eggs in experimental layers (4.44%), as compared to the control (12.2%). Haematological tests such as total counts of erythrocytes and leukocytes showed no differences between control and experimental layers. However, the average levels of haematocrit and haemoglobin in experimental layers were significantly lower (P ≤ 0.01) (0.31 l/l and 85.67 g/l) in comparison with the control (0.33 l/l and 89.92 g/l). Biochemical examination of the samples of blood plasma collected from experimental layers after the administration of L-carnitine revealed higher levels of glucose and magnesium and lower levels of total protein, cholesterol, AST, calcium and phosphorus, as compared to the control. The differences in the average levels of the monitored biochemical parameters between control and experimental layers were found highly significant (P ≤ 0.01). The results provide new knowledge of the effect of L-carnitine on the metabolism of layers. These results are important not only from the scientific aspect, they are also of practical importance and can be used to formulate diets for breeding layers in order to enhance reproduction.  

scholarly journals Effect of zinc nanoaquacitrate on the biochemical and productive parameters of the organism of rabbits

2020 ◽  
Vol 11 (2) ◽  
pp. 243-248
Author(s):  
О. V. Boiko ◽  
О. F. Honchar ◽  
Y. V. Lesyk ◽  
І. І. Kovalchuk ◽  
B. V. Gutyj
Keyword(s):  
Body Weight ◽  
Glutathione Reductase ◽  
Biochemical Parameters ◽  
Practical Importance ◽  
Growth Parameter ◽  
Blood Parameters ◽  
Physiological Effect ◽  
Control Group ◽  
Lipid Hydroperoxides ◽  
Positive Effect

Zinc is an essential microelement for the organism of animals, and its deficiency reduces the synthesis and degradation of proteins, lipids, carbohydrates and nucleic acids, and also decreases the metabolism of vital microelements. The objective of the study was determining the effect of various amounts of zinc nanoaquacitrate on the biochemical parameters of blood and productivity of the organism of rabbits after weaning on 50th to 86th days of life. Compared with the control group, intake of zinc nanoaquacitrate by the animals of the experimental groups exhibited dose-dependent effect on separate biochemical parameters which characterize the processes of lipid and mineral metabolisms, which manifested in the increase in their content in the blood on the 12th, 24th and 36th days of the experiment. Watering rabbits with zinc citrate in the dose of Zn 0.25 mg/kg after weaning determined its physiological effect on the biochemical parameters of their organism, expressed in the most statistically reliable changes compared with other tested amounts, particularly a higher level of the total protein, increase in the activities of glutathione reductase, alanine aminotransferase, catalase and alkaline phosphatase and decrease in the levels of cholesterol, lipid hydroperoxides, compared with the control, which may indicate the positive effect of the applied additives on certain biochemical parameters of the rabbits’ organism. Additional use of zinc citrate in the dose of 0.50 mg/kg of body weight was manifested in their blood by significant increase in the activities of catalase and glutathione reductase, lower level of lipid hydroperoxides and increase in the organism’s growth parameter by 3.1% in the final period of the study. Watering zinc citrate in the amount of 0.75 mg/kg of body weight provoked probable decrease in the level of cholesterol and triacylglycerols and increases in catalase and glutathione reductase, increase in activity of alanine aminotrasferase and decrease in lipid hydroperoxides, which determined the stimulating effect on the growth of the organism with 8.4% higher total gain of body weight after 36 days of the experiment. From a general perspective, the research indicates that intake of lowest amount of zinc citrate was characterized by the greatest effect on the biochemical blood parameters, whereas the use of greater amounts of organic compound of zinc showed positive effect on the processes of growth and development of the organism of rabbits after weaning. Of practical importance is the study of the effect of watering zinc nanoaquacitrate in the physiologically substantiated amounts on biochemical blood parameters and growth and survivability of the offspring and organism of the mother rabbit in the period of lactation.

scholarly journals Differences between metabolic profiles of egg-type and meat-type hybrid hens

2011 ◽  
Vol 49 (No. 8) ◽  
pp. 323-328 ◽  
Author(s):  
P. Suchý ◽  
E. Straková ◽  
B. Jarka ◽  
J. Thiemel ◽  
V. Večerek
Keyword(s):  
Blood Plasma ◽  
Biochemical Parameters ◽  
Metabolic Profile ◽  
Egg Laying ◽  
Haematocrit Level ◽  
Production Type ◽  
Significant Difference ◽  
Biochemical Analyses ◽  
Meat Type ◽  
In Blood Plasma

The main objective of this study was to compare the metabolic profile (i.e. selected haematological and biochemical parameters in blood plasma) of production egg-type hybrid hens (E, MORAVIA BSL) with that of meat-type hybrid hens (M, COBB 500), and to evaluate dynamic changes occurring during the laying period from the 25th to 50th week of age. The study was prompted by both poultry farmers and veterinary practitioners since parameters defining the health of layers are absent. Selected parameters of the metabolic profile of layers were monitored regularly in 5-week intervals during egg laying. Samples of blood for haematological and biochemical examination were obtained by puncture of the vena basilica and stabilized by heparin. The study has revealed that monitored parameters of the metabolic profile significantly vary with factors such as production type, nutrition, and egg-laying intensity. Enhanced metabolism in egg-type hens was reflected in erythropoiesis which increased (in comparison with meat-type hens) highly significantly (P ≤ 0.01), particularly for erythrocyte count 2.36 T/l (2.14 T/l), haematocrit level 0.32 l/l (0.30 l/l), content of haemoglobin 94.48 g/l (84.18 g/l) and leukocyte count 17.06 G/l (13.22 G/l). Similarly, enhanced metabolism in egg-type hens also led to a highly significant increase (P ≤ 0.01) in the levels of biochemical parameters in blood plasma, particularly the total level of protein was 57.62 g/l (50.98) g/l), glucose 14.03 mmol/l (13.36 mmol/l), cholesterol 5.34 mmol/l (3.73 mmol/l) and calcium 6.52 mmol/l (5.52 mmol/l). ) In the case of the plasma level of phosphorus, no significant difference was found between egg-type hens (1.58 mmol/l) and meat-type hens (1.59 mmol/l). The reported results are based on the total of 180 haematological and biochemical analyses performed during the laying period. The results are crucial not only for future development of avian haematology and biochemistry, but also in respect to veterinary practice.    

scholarly journals Influence of vitamin-mineral supplement on protein metabolism in rabbits’ organisms

2021 ◽  
Vol 4 (1) ◽  
pp. 3-6
Author(s):  
M. Fedorchenko
Keyword(s):  
Blood Plasma ◽  
Protein Content ◽  
Biochemical Parameters ◽  
The Body ◽  
Control Group ◽  
Total Protein Content ◽  
Mineral Supplement ◽  
Significant Difference ◽  
Positive Effect ◽  
Alt Activity

The purpose of the study is to study the influence of different vitamin-mineral supplement “Tekro” doses on biochemical parameters in blood plasma and liver of rabbits of New Zealand breed. The research methodology is based on research according to generally accepted research methods. Biochemical parameters were studied in rabbits’ organisms at 45, 60, 75 and 90 days of rearing with feeding of different doses of vitamin-mineral supplement “Tekro”, namely 3 %, 3.5 %, 4 %. The academic novelty is that nowadays the problem of the effect of different vitamin-mineral supplement “Tekro” doses on biochemical parameters in the blood and liver of rabbits has not been studied. Analyzing the indicators of the total protein content in the blood plasma of rabbits of the experimental groups and the control one for 90 days, it was noted that there was no significant difference in the indicators. In the liver of rabbits of the age from 45 to 90 days there was a tendency to increase the protein content due to the effects on the body of various doses of vitamin and mineral supplement “Tekro”. It has been established the positive effect of vitamin-mineral supplement “Tekro” on ALT activity of rabbits in experimental groups. At the age of 75 days, significantly higher ALT activity was recorded in rabbits of the 3rd experimental group by 35.8 % compared to animals in the control group.

scholarly journals Toxicity and Sublethal Effect of Farnesyl Acetate on Diamondback Moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 109
Author(s):  
Norazila Yusoff ◽  
Idris Abd Ghani ◽  
Nurul Wahida Othman ◽  
Wan Mohd Aizat ◽  
Maizom Hassan
Keyword(s):  
Plutella Xylostella ◽  
Sublethal Effects ◽  
Diamondback Moth ◽  
Sublethal Effect ◽  
Sublethal Concentration ◽  
Pupal Weight ◽  
Control Group ◽  
Hatching Rate ◽  
Egg Hatching ◽  
Female Ratio

The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is the most important pest of cruciferous vegetables worldwide. In this study, we evaluated the properties of selected farnesyl derivative compounds against P. xylostella. The toxicity and sublethal concentration (LC50) of farnesyl acetate, farnesyl acetone, farnesyl bromide, farnesyl chloride, and hexahydrofarnesyl acetone were investigated for 96 h. The leaf-dip bioassays showed that farnesyl acetate had a high level of toxicity against P. xylostella compared to other tested farnesyl derivatives. The LC50 value was 56.41 mg/L on the second-instar larvae of P. xylostella. Then, the sublethal effects of farnesyl acetate on biological parameters of P. xylostella were assessed. Compared to the control group, the sublethal concentration of farnesyl acetate decreased pupation and emergence rates, pupal weight, fecundity, egg hatching rate, female ratio, and oviposition period. Furthermore, the developmental time of P. xylostella was extended after being exposed to farnesyl acetate. Moreover, the application of farnesyl acetate on P. xylostella induced morphogenetic abnormalities in larval–pupal intermediates, adults that emerged with twisted wings, or complete adults that could not emerge from the cocoon. These results suggested that farnesyl acetate was highly effective against P. xylostella. The sublethal concentration of farnesyl acetate could reduce the population of P. xylostella by increasing abnormal pupal and adults, and by delaying its development period.

The Complex Biochemical Study of the Blood Plasma, Obtained by Manual Plasmapheresis

2016 ◽  
pp. 155-157
Author(s):  
Andrii Korzh
Keyword(s):  
Blood Plasma ◽  
Biochemical Parameters ◽  
Biochemical Study ◽  
Plasma Samples ◽  
Fluorometric Method ◽  
Plasma Donation ◽  
Individual Index ◽  
First Time ◽  
Age And Sex ◽  
Donor Plasma

The plasma samples of 34 primary donors (22 men and 12 women) for the first time given the plasma by automated plasmapheresis (control surveillance), and 54 active donors of blood plasma (40 men and 14 women) being donors with non-less 14 days interval between donations, have been examined. The active male donors’ plasma averaged at 18,63±1,71 with individual index fluctuations from 2 to 78, female donors’ – 14,09±1,95 with individual index fluctuations from 2 to 45. The method of plasma obtaining is a manual plasmapheresis method. The surveyed groups were homogeneous for age and sex. Hematologic and biochemical parameters of all those persons have been examined and, basing on the conclusion of the professionals, everyone was admitted to the plasma donation. The content of middle mass molecules in plasma were determined by method of N.I. Gabrieljan, V.I. Lipatovoj (1984). The content of biogenic amines free fractions in plasma were determined by fluorometric method of B.V. Mikhailichenko, S.V. Vydyborets (1999). Analysis of the results showed that in the donor plasma samples obtained by manual plasmapheresis level of middle mass molecules, histamine, serotonin is significantly higher. The significance of obtained results has also been discussed.

scholarly journals Nanocomposite coatings for hatching eggs and table eggs

2021 ◽  
Vol 6 (1) ◽  
pp. 573-586
Author(s):  
Oleksandr Chekh ◽  
Olga Bordunova ◽  
Vadym Chivanov ◽  
Evgenia Yadgorova ◽  
Larisa Bondarchuk
Keyword(s):  
Pathogenic Bacteria ◽  
Protective Coatings ◽  
Storage Conditions ◽  
Hatching Rate ◽  
Green Technologies ◽  
Egg Hatching ◽  
Poultry Products ◽  
Hatching Eggs ◽  
And Storage

Abstract Theoretical and applied aspects of the concept of using biomimetic protective coatings GREEN ARTICLE (ARTIficial cutiCLE) in the poultry industry, namely in the production of table and hatching eggs, are developed. The basic matrix component of the protective coatings GREEN ARTICLE is chitosan, an environmentally friendly, inexpensive, and harmless material. It is experimentally proved that electrochemical and ultrasonic technologies for modifying a solution of chitosan in peroxide compounds (peracetic acid and hydrogen peroxide) with nanoparticles of oxides like titanium, iron, zinc, and metals, such as titanium, copper, and calcite, allow to create protective coatings of double action in accordance with the technologies: (a) extending the shelf life of table eggs, food green article (FGA) and (b) preventing contamination of hatching eggs with pathogenic microflora, increasing the hatchability of eggs, and the quality of chicken, hatching green article (HGA). In the technology of storing table eggs, artificial cuticles based on chitosan FGA are characterized by the following characteristics: increased thickness of 6–10 µm, low gas and moisture permeability, and high biocidal activity against pathogenic bacteria and viruses. It is shown that the use of FGA technology in the production of table eggs can extend the period of transportation and storage of products by 33–35 days at a temperature of 24°C and maintained a grade A (Haugh unit = 71–60) through the entire 35 days period. The technology HGA reduces the rate of contamination of hatching eggs with pathogenic microflora by 99.29–99.7%, while increasing the egg hatching rate by 2.3–11.6% compared to the control, depending on the cross of the poultry and the storage conditions of the hatching eggs. It is important that these technologies have a great prospect for application in countries that develop green technologies for the production of poultry products.

scholarly journals Daya Tetas Telur dan Sintasan Larva Dari Hasil Penambahan Madu pada Bahan Pengencer Sperma Ikan Nila (Oreochromis niloticus)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Yunus Ayer ◽  
Joppy Mudeng ◽  
Hengky Sinjal
Keyword(s):  
Experimental Design ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Larval Survival ◽  
Hatching Rate ◽  
Dilution Ratio ◽  
Egg Hatching ◽  
Research Results ◽  
Spermatozoa Motility ◽  
Randomized Design

The objective of research was to determine the concentration of honey in sperm dilution  for improving hatching rate of egg and survival of nile tilapia larvae (Oreochromis niloticus).The number of fish used was five pairs broodstock. Dilution substance was NaCl and honey.  Observations were conducted on spermatozoa motility, fertility and egg hatching rate. Experimental design used was complete randomized design. Sperm dilution substance was prepare by disolving honey  (0 mL; 0,60 mL; 0,65 mL dan 0,70 mL) in 100 mL; 99,40 mL; 99,35 mL and  99,30 mL NaCl respectively.  Each dilution was homogenized using aerator for 15 minutes. Fertilization was done 12 hours after ovulation.  Egg hatching rate was observed after ovulation. Research results showed the use of honey had significant effet on egg hatching rate, but not on larval survival.  Treatment D (0,70 mL honey in 99,30 mL NaCl) had the highest hatching rate (77.33%). Dilution ratio 1:60 was the best indicated by spermatozoa motility 96.66%, fertility 71.65, hatching rate 70% and larval survival 81.67%   Keywords : honey, egg hatching rate, larval survival, Oroechromnis niloticus

Introductory remarks

1979 ◽  
Vol 287 (1022) ◽  
pp. 249-249
Keyword(s):  
South Africa ◽  
Practical Importance ◽  
Applied Science ◽  
Desert Locust ◽  
African Armyworm ◽  
Economic Significance ◽  
Written Comments ◽  
New Knowledge ◽  
History Of ◽  
Informed Opinion

This meeting was concerned with pests whose control remains a matter of international concern, illustrated both by a new upsurge of the Desert Locust since the meeting and, almost at the same time, by serious infestations of African armyworm in every country from South Africa to Yemen (in several of them the heaviest on record); both these developments have indeed contributed unavoidably to the delay in the appearance of these proceedings. Each of the pests discussed at the meeting has a human importance beyond its purely economic significance; each presents problems so daunting in magnitude that any attempt at control must, as was said, have an element of audacity; and perhaps no one who has been involved in such attempts is ever quite the same again. The effective deployment of applied science within such subjective constraints has involved a long history of invaluable international meetings with administrative and logistic objectives for which a consensus of technical opinion has been essential. But in each case knowledge and understanding are still sufficiently incomplete to leave scope - and need - for sharp differences of informed opinion, often on points of major practical importance. At the start of the present meeting it was emphasized that no collective recommendations would be attempted; that there would be no drafting committee; but that the objective was to use the forum provided by the Society to get on record a really comprehensive presentation of the range of informed opinion on these various points of disagreement: because these are the growing-points for new knowledge. Written comments and afterthoughts were accordingly invited, and have been used to supplement the taped record of the discussions.

Effect of Temperature on the Predator, (Reuter) (Hemiptera: Anthocordiae) Feeding on Cryptolestes pusillus (Schon.) (Coleoptera: Cucujidae)

1970 ◽  
Vol 15 ◽  
pp. 41-46 ◽  
Author(s):  
MM Rahman ◽  
W Islam ◽  
KN Ahmed
Keyword(s):  
Life History ◽  
Insect Pest ◽  
Developmental Time ◽  
Effect Of Temperature ◽  
Hatching Rate ◽  
Immature Stages ◽  
Egg Hatching ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Cryptolestes Pusillus

Xylocoris flavipes (Reuter) is one of the dominant predators of many stored product insect pest including Cryptolestes pusillus. The influence of temperature on predator development, survival and some selected life history parameters was determined. Eggs laid/female (27.27±2.52) and egg hatching rate (%) (88.25±2.19) were highest at 30°C and lowest at 20°C (5.43±1.19 and 30.79±4.63%) respectively but no eggs laid at 15°C. Mortality among immature stages (%) was highest (51.71±1.48) at 35°C and lowest (24.25c±1.14) at 25°C. Developmental times decreasing with the increasing of temperature. Maximum numbers of progeny/female/day (3.55±0.76) were produced at 25°C and minimum (0.83±0.04) were at 20°C.The sex ratios (% female) of X. flavipes were 47.04, 56.68, 51.66 and 50.07 for 20, 25, 30 and 35°C respectively. Survivorship of ovipositing females was highest at 25°C but lowest at 35°C respectively. Key words: Xylocoris flavipes, Cryptolestes pusillus, life history, temperature, developmental time   doi: 10.3329/jbs.v15i0.2201 J. bio-sci. 15: 41-46, 2007

scholarly journals Effect of the application of bioplexes of zinc, copper and manganese on milk quality and composition of milk and colostrum and some indices of the blood metabolic profile of cows

2008 ◽  
Vol 52 (No. 12) ◽  
pp. 423-429 ◽  
Author(s):  
S. Kinal ◽  
A. Korniewicz ◽  
M. Słupczyńska ◽  
R. Bodarski ◽  
D. Korniewicz ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Metabolic Profile ◽  
Dry Matter ◽  
Calcium Concentration ◽  
First Trimester ◽  
Matter Content ◽  
Dry Matter Content ◽  
Calcium Phosphorus ◽  
Mineral Mixtures ◽  
Positive Effect

The object of an experiment was inorganic and organic forms of zinc, copper and manganese applied in mineral mixtures to dairy cows. The experiment was carried out on 90 cows with average milk yield for previous lactation of about 9 500 kg milk. The cows received mineral mixtures containing inorganic or organic forms of zinc, copper and manganese for 6 weeks before calving and during the first three months of lactation. The application of microelements as bioplexes in amounts covering 30% of daily requirements of cows had a positive effect on an increase in colostrum dry matter content from 20.9 to 23.35% as well as on the concentration of protein and fat, and the level of minerals – calcium, phosphorus, magnesium, zinc and copper. In cows’ milk in the 2<sup>nd</sup> and 3<sup>rd</sup> month of lactation there were no differences in contents of minerals. However in the blood serum of cows in the 1<sup>st</sup> and 2<sup>nd</sup> month of lactation an increase in calcium concentration from 1.96 to 2.14 g/kg was observed while the content of phosphorus also increased average from 1.76 to 2.22 g/kg in the first trimester of lactation.

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