scholarly journals Dietary effects of drone larves homogenate on the homeostatic constants and the reproductive capacity of Large White gilts

2021 ◽  
Vol 3 (2) ◽  
pp. 27
Author(s):  
Yaroslav Mykolaiovych Yemets
Keyword(s):  
Reproductive Capacity ◽  
Large White ◽  
Dietary Effects

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 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.

Biochemical indexes of blood of different genotypes of pigs

2020 ◽  
pp. 62-67
Author(s):  
Vasyl Voloshchuk ◽  
Malvina Huk
Keyword(s):  
Stress Resistance ◽  
Hematological Parameters ◽  
The Body ◽  
Reproductive Capacity ◽  
State Enterprise ◽  
Enzymatic Reactions ◽  
Short Term ◽  
Large White ◽  
Glucose Content

Changes in technological processes, feeding conditions, content have a great influence on the mechanism of adaptive response of pigs. Distinguish between short-term and long-term adaptation. Long-term adaptation is defined over several generations by reproductive and fattening qualities. Short-term one is studied by blood indexes (biochemical, hematological), ethology, physiological features. There are many stressors that affect pigs, impair their reproductive capacity, digestive processes, and can lead to the death of animals. Therefore, the question now is to create animals of such genotypes, which must have high meat quality and stable homeostasis. With severe stress or constant irritation, this affects the stability of the blood composition. Blood indexes are known to reflect the internal physiological state of animals. Blood reflects hormonal and enzymatic reactions, performs protective functions of the body. That is why we have set the goal of studying the biochemical and hematological indexes of blood of pigs of different genotypes. The study was carried out at the State Enterprise "Stepne" and the laboratories of the Institute of Pig Breeding and agro-industrial production of NAAS. For the study we formed three groups of pigs of 5 heads: purebred the Large White (LW×LW) and local the Large White×Mirgorod (LW×M), the Large White×Mirgorod+1/ 8Pietren(LW×M+1/8P). Blood was taken from pigs in the morning before feeding with a large ear vein. The studies were performed according to conventional methods. Pigs of the LW×M+1/8P local group were found to have high glucose content, an indicator of the effects of stress on the body. Also in this group of pigs were identified leukocytosis, which can be the result of stress. The eosonophils and basophils were slightly underestimated in pigs of the LW×M+1/8P group, which also confirms the previous findings on the reduced stress resistance of pigs. Other indicators that are responsible for the clinical stability of the organism were within normal limits. There was also a slight increase in total protein in pigs in the local LW×M, LW×M+1/8P pigs, which indicates accelerated metabolic processes in the body that can be caused by overfeeding. In purebred LW×LW and local LW×M groups of pigs, all biochemical and hematological parameters of blood were within the normal range, which indicates their stress resistance. Key words: pigs, resistance, adaptation, blood, hematological parameters, biochemical indexes.

scholarly journals The influence of probiotic fodder additives on the morphofunctional state of duodenum pigs

2018 ◽  
Vol 20 (87) ◽  
pp. 27-31
Author(s):  
G.I. Kotsyumbas ◽  
V.M. Lemishevskyi ◽  
A.K. Kostyniuk
Keyword(s):  
Lamina Propria ◽  
Plasma Cells ◽  
Statistical Significance ◽  
Maximum Growth ◽  
Biologically Active ◽  
Reproductive Capacity ◽  
Large White ◽  
Ultrastructural Studies ◽  
Immune Resistance ◽  
Animal Mass

The article is dedicated to the study of the effect of a class of microorganisms and substances of microbial and other origin that are used in feeding pigs to achieve maximum growth in animal mass, as well as therapeutic purposes. Study of the effect of biologically active additives on the state of the pig's digestive system. The article considers the rational nutrition that increase the productivity and reproductive capacity of animals, and also prevent the emergence of profound disturbances of all metabolic processes which leads to a decrease in resistance to productivity, a clinically pronounced disease of adult animals and young animals. The authors pay attention to the morphometric parameters, ultrastructure and content of nucleic acids in the wall of the duodenum of pigs by forage feeding with the addition of probiotic fodder additive «Probion-forte» in dose of 1 g/kg of fodder. Research were conducted on 28 day pigs, breed «Large White». It was formed two groups of piglets per 30 heads; piglets were fed with standard mixed fodders; piglets from the first group were received standard mixed fodder with the addition of  probiotic fodder additive «Probion-forte» in dose 1 g/kg of fodder for 42 days. After the slaughter of  piglets, pieces of duodenum for histological, histochemical and ultrastructural studies were selected. Statistical significance of differences was determined by Student's t test , assuming 5% estimate error. It was shown that feeding with forage within 42 days from the addition of probiotic fodder additive «Probion-forte» at a dose of 1 g/kg, villus height is increase, crypt depth and a number of plasma cells in the lamina propria of mucosa of the duodenum, which helps the digestive process and increase the area of nutrient absorption in the intestines. The number of plasma cells are increased in the lamina propria of mucosa and testify immunomodulatory effect of fodder additives. Ultra structural alteration of microvilli and changes in the nuclei of duodenal enterocytes of piglets of the first group indicates a more pronounced acfunctional activity of enterocytes and thereby increases the activity of parietal digestion in the intestine. As a conclusion, the task by definition performed of the effective dose of probiotic in feed for pig it can be considered completed and we can state the probiotics can be incorporated, as a alternative to antibiotics and increase the weight gain of animals and also to increase the level of immune resistance of the organism.

scholarly journals Signs of reproductive qualities of sows of different types of adaptation, their variability and correlation

2020 ◽  
Vol 22 (92) ◽  
pp. 35-41
Author(s):  
V. I. Khalak ◽  
B. V. Gutyj
Keyword(s):  
Life Expectancy ◽  
Economic Efficiency ◽  
Correlation Coefficients ◽  
Reproductive Capacity ◽  
Adaptation Level ◽  
Large White ◽  
Research Results ◽  
Large White Breed ◽  
Different Types ◽  
White Breed

The results of studies of life expectancy and breeding use, as well as the main indicators of reproductive qualities of sows of large white breed of different types of adaptation, the economic efficiency of the research results and the level of correlation between traits are calculated cost-effectiveness of research results and the level of correlation between traits. The research was conducted in the conditions of agro-formations of Dnipropetrovsk region (LTD “Agro-Elita”, SLTD “Druzhba-Kaznacheevka”). The object of the study was sows of large white breed. Evaluation of sows of experimental groups (I – superadaptive, II – mediumadaptive, III – minusadaptive type of adaptation) according to the indicators of the level of adaptation and the main indicators of reproductive qualities were carried out taking into account the successor of quantitative traits: life expectancy, months, duration of breeding use, months, farrowing received, piglets total, head; live pigs obtained, naked; multiplicity, head; weight of the nest at the time of weaning at the age of 28–35 days, kg; duration of intergrowth, days. The adaptation level index and the coefficient of productivity were calculated according to the method of Smirnov V. S. (2003) and Long T. E., Short T. H., Bates R. O (2003) respectively. The economic efficiency of the research results was calculated by according to the indicator “mass of the nest at the time of weaning at the age of 28–35 days, kg”. Analysis of the research results shows that sows of superadaptive type will outperform peers of the opposite class (minusadaptive type) in terms of adaptation level and reproductive capacity by 58.36 and 43.63 % respectively. The proportion of indicator “duration of breeding use, months” to the indicator “life expectancy, months” in animals of superadaptive type is 81.8 ± 0.76 %, minusadaptive – 54.1 ± 2.67 % (lim = 27.7 %; td = 10.00; P < 0.001). An integrated assessment of sow reproductive performance by the performance factor confirms the superiority of sows of the superadaptive type to this group of animal traits of other adaptation types. The paired correlation coefficients between adaptation level indices and reproductive traits in sows of different types of adaptation range from -0.815 (tr = 6.45; adaptation level index × obtained farrowing) to +0.995 (tr = 45.05; life expectancy × duration of tribal use). In order to accelerate the breeding process and create a high-yielding herd of pigs, we suggest that the leading group of sows select animals with an index of “adaptation level” of 6.55–8.90 points.

scholarly journals РЕПРОДУКТИВНІ ЯКОСТІ СВИНОМАТОК МИРГОРОДСЬКОЇ ПОРОДИ ЗА СХРЕЩУВАННЯ З КНУРАМИ М’ЯСНОГО НАПРЯМУ ПРОДУКТИВНОСТІ

2014 ◽  
pp. 125-129
Author(s):  
Т. В. Щербань
Keyword(s):  
Comparative Analysis ◽  
Positive Influence ◽  
Reproductive Capacity ◽  
Large White ◽  
Negative Effect

Миргородська порода свиней віднесена до локаль-них зникаючих порід, тому актуальним є пошук шля-хів її збереження. У даній статті проведено порівня-льний аналіз показників відтворювальних якостейсвиноматок миргородської породи за чистопородно-го розведення та схрещування зі спеціалізованимим’ясними генотипами. Доведено позитивний впливкнурів породи ландрас на репродуктивну здатністьсвиноматок миргородської породи; негативнийефект на відтворювальні якості – від схрещування зпородою п’єтрен та великою білою англійськоїселекції. Mirgorod breed of pigs is regarded as the local vanishing breed; that is why search of the ways for its preserving is urgent. The comparative analysis of reproductive qualities’ indices of Mirgorod breed sows, which are purebred and crossed with specialized meat genotypes has been conducted in the article. Positive influence of Landrace breed boars on the reproductive capacity of Mirgorod breed sows has been proved; the negative effect on reproductive qualities as a result of crossing with the breed Pietrain and Large White of English selection has been shown.

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.

Ultrastructural Effects of Acute Kepone Treatment in Rats

1976 ◽  
Vol 34 ◽  
pp. 286-287
Author(s):  
Richard L. Klein ◽  
Åsa K. Thureson-Klein ◽  
Harihara M. Mehendale
Keyword(s):  
Neurological Disorders ◽  
Corn Oil ◽  
Preliminary Investigation ◽  
Reproductive Capacity ◽  
Ultrastructural Changes ◽  
Lipid Deposition ◽  
Severe Toxicity ◽  
Sprague Dawley ◽  
Ether Anesthesia ◽  
Sprague Dawley Rats

KeponeR (decachlorooctahydro-1,3,4-metheno-2H-cyclobuta[cd]pentalen-2-one) is an insecticide effective against ants and roaches. It can cause severe toxicity in fishes, birds, rodents and man. Prominent effects include hepatic lipid deposition and hypertrophy, impairment of reproductive capacity and neurological disorders. Mitochondrial oligomycin-sensitive Mg2+-ATPase is also inhibited. The present study is a preliminary investigation of tissue ultrastructural changes accompanying physiological signs of acute toxicity, which after two days treatment include: pronounced hypersensitivity and tremor, various degrees of anorexia and adipsia, and decreased weight gain.Three different series of adult male Sprague-Dawley rats (Charles River or CD-I) were treated by intubation with Kepone in corn oil at a dose of 50 mg per kg for 3 successive days or at 200 ppm in food for 8 days. After ether anesthesia, rats were immediately perfused via a cannula in the left ventricle with 4% p-formaldehyde and 0.5% glutaraldehyde in Millonig's phosphate buffer at pH 7.2 for 20-30 min at 22°C.

Association between leptin receptor gene polymorphism and quality of both meat and back fat in large white pigs of ukrainian breeding

2016 ◽  
Vol 3 (2) ◽  
pp. 42-48
Author(s):  
V. Balatsky ◽  
I. Bankovska ◽  
A. Saienko
Keyword(s):  
Gene Polymorphism ◽  
Leptin Receptor ◽  
Receptor Gene ◽  
Intramuscular Fat ◽  
Large White ◽  
Pig Breeds ◽  
Lepr Gene ◽  
Large White Breed ◽  
White Breed

Leptin receptor is one of the components of the system of regulating energy homeostasis of the organism. Leptin receptor gene (LEPR) polymorphism is associated with pig carcass index of the content of intramus- cular fat in its valuable parts, which is particularly important when assessing the quality of their carcasses for processing. Intramuscular fat is associated with meat fl avor characteristics and partly determines its tenderness, juiciness, and other parameters. Aim. To analyze LEPR gene (SNP NM001024587.1, p. 1987 C > T) polymor- phism in populations of various pig breeds and to establish its relationship with the quality of both meat and fat of pigs of Large White breed of Ukrainian breeding. Methods. Genetic-population analysis of nine pig breeds, associative analysis on the search connection of LEPR gene polymorphism with quality of both meat and fat of pigs of Large White breed of Ukrainian breeding. LEPR locus genotyping was performed by High Resolution Melting (HRM). Results. All the studied breeds are characterized by polymorphism of the leptin receptor gene (SNP NM001024587.1, p. 1987 C > T), signifi cant breed specifi city in the distribution of frequencies of alleles was established. Statistically confi rmed effect (p < 0.05) of genotypes LEPR on the content of intramuscular fat, total dry matter and moisture in the meat, as well as the moisture content in the back fat of pigs of Ukrainian Large White breed was revealed. Higher content of intramuscular fat was found in the animals with genotype TT, while a smaller amount of intramuscular fat and more moisture in fat was revealed in heterozygotes. Conclusions. Genetic marker LEPR SNP NM001024587.1, p. 1987 C > T can be used in the marker-assisted selection to predict and improve the performance quality of the meat of pigs of Large White breed of the Ukrainian breeding. These results suggest that porcine leptin receptor gene controls the quality of fat comp- lex – inside muscles and in the dorsal part of the carcass.

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