scholarly journals Impact of feeding with protein–vitamin mineral supplement «Minaktyvit» on the structure of gastrointestinal tract of young pigs

2016 ◽  
Vol 18 (2) ◽  
Author(s):  
V. V. Bondarenko
Keyword(s):  
Live Weight ◽  
Control Group ◽  
Weaned Piglets ◽  
Large White ◽  
Mineral Supplement ◽  
Large White Breed ◽  
Young Pigs ◽  
Significant Difference ◽  
White Breed ◽  
Experimental Group

The research was conducted on two groups–analogues of young pigs of large white breed with 10 pigs each. Weaned piglets at the age of 28 days were fed with the protein–vitamin mineral supplement «Minaktyvit» – starter in the amount of 25% of grain feed (33 days), while young pigs in growing were given the protein–vitamin mineral supplement «Minaktyvit» – grower in the amount of 15% (50 days) and those in fattening the protein–vitamin mineral supplement «Minaktyvit» – finisher in the amount of 10% (62 days). The control group received protein–vitamin mineral supplement. At the end of growing with the live weight of 100 – 110 kg a control slaughter was carried out and samples of stomach, small and large intestines for laboratory tests were picked out. Studies have shown that feeding of young pigs with the protein–vitamin mineral supplement «Minaktyvit» increases the average daily gains by 95 g or 15.68%, while their level is 701 g in the experimental group of animals and 606 g in the control one. The protein–vitamin mineral supplement «Minaktyvit» incredibly affected the morphological parameters of the stomach in the experimental group of pigs. However, the thickening of the walls by 4.3%, 5% and 10.9% respectively is observed in cardiac, fundic and pyloric areas of the experimental group, compared to the control one. The thickening of the walls in stomach areas under the influence of feed factor is associated with increasing of the mucosa thickness. Mucosa increased by 0.1 mm in the cardiac area, 0.36 mm in fundic and 0.53 mm in the pyloric one. The change in the structure of the investigated jejunum is observed while consuming the protein–vitamin mineral supplement «Minaktyvit» in the diet. The wall thickness increased by 17.57% (P < 0.05), including the thickening of mucosa by 16.7% and that of serous–muscular shell by 18.8%. No significant difference in the structure of the colon in the experimental group of animals was determined.

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.

scholarly journals Physiological state and productivity of young pigs for probiotic action

2018 ◽  
Vol 20 (92) ◽  
pp. 68-72
Author(s):  
V. V. Voronyak ◽  
K. Y. Leskiv ◽  
V. O. Huberuk
Keyword(s):  
Physiological State ◽  
Average Daily Gain ◽  
The Body ◽  
Economic Losses ◽  
Control Group ◽  
Large White ◽  
Young Pigs ◽  
White Breed ◽  
The Impact ◽  
Experimental Group

Due to the impact of adverse environmental factors, unsatisfactory conditions of pig population, deterioration of food supply, abuse of antibiotics, lack of preventive measures, leads to the development of diseases among pigs, especially young, which leads to a decrease in resistance, body performance, reproduction and reduction of livestock, as well as large economic losses. The use of bacterial preparations from living microorganisms can significantly reduce or even eliminate the use of antibiotics and hormones in the cultivation of healthy animals, to obtain high-quality and safe high-grade products. The aim of the work is to study the effect of probiotic EM – 1 on the physiological state and productivity of young pigs of large white breed. The experiment was conducted on two groups (6 heads each) of animals-analogues, starting from 60 days of age, for 2 months. Animals of the control group received feed produced in the farm. Piglets of the experimental group in addition to the main diet received 5% of feed fermented with em-1. Evaluation of the physiological state and productivity of young pigs was carried out on 60, 90 and 120 days of experience according to the methods adopted in clinical practice. Hygienic, hematological, biochemical, zootechnical and statistical methods of research were used in the performance of the work. The use of probiotic EM-1 in animals of the experimental group led to an increase in hemoglobine concentration by 7.7%, an increase in the number of red blood cells by 13.7%, the total number of leukocytes by 9.52%, and glucose concentration by 11.4%. The advantage of the viability of these pigs for the content of total protein (P < 0.05), γ–globulins by 18.6%, the activity of aminotransferases (AlАT, AsAT; P < 0.05), the average daily gain increased by 12.3% at the end of the experiment. For feeding piglets feed with probiotic EM-1 increased metabolic processes, resistance and productivity of the body, which indicates a higher level of redox reactions in their body.

scholarly journals Polygenic hereditary traits of young pigs and their association with the melanocortin receptor gene – 4 (MC4R)

2020 ◽  
Vol 22 (93) ◽  
pp. 84-89
Author(s):  
V. I. Khalak ◽  
B. V. Gutyj
Keyword(s):  
Receptor Gene ◽  
Live Weight ◽  
Melanocortin Receptor ◽  
Thoracic Vertebrae ◽  
Large White ◽  
Large White Breed ◽  
Young Pigs ◽  
Melanocortin 4 Receptor Gene ◽  
White Breed ◽  
Fat Thickness

The article presents the results of studies of fattening and meat qualities of young pigs of different genealogical lines of large white breed and genotypes by the gene of melanocortin receptor – 4 (MC4R). The research was conducted in “Druzhba-Kaznacheyivka” LLC, the genetics laboratory of the Institute of Pig Breeding and APV NAAS and the animal husbandry laboratory of the State Institution Institute of Grain Crops NAAS. The work was performed according to the research program of NAAS №30 “Innovative technologies of breeding, industrial and organic production of pig products” (“Pig Breeding”). DNA-typing of the melanocortin-4 receptor gene (MC4R) was performed by Kim K., Larsen N., Short T. et al. (2000). Evaluation of young pigs for fattening and meat qualities was carried out taking into account the following quantitative characteristics: the average daily increase in live weight during the period of control fattening, g; age of live weight 100 kg, days; fat thickness at the level of 6–7 thoracic vertebrae, mm; the length of the cooled carcass cm; the length of the bacon half of the cooled half-carcass, cm. The length of the cooled carcass was measured with a measuring tape from the edge of the fusion of the pubic bones to the anterior surface of the first cervical vertebra; the length of the bacon half of the cooled half-carcass - from the anterior edge of the pubic bone to the middle of the anterior edge of the first rib (Berezovsky, Khatko, 2005). Conditions for feeding and keeping young pigs of the experimental groups were identical and complied with zootechnical standards. Economic efficiency of use of animals of various genotypes (МС4RАА, МС4RАG) and biometric processing of the received data (Lakin, 1990). calculated according to generally accepted methods. It is established that young pigs of large white breed of controlled population at the age of reaching live weight of 100 kg exceed the minimum requirements of the elite class by 6.73, fat thickness at the level of 6–7 thoracic vertebrae – 30.84, length of chilled carcass – 3.52 %. Significant difference between animals of different genotypes by melanocortin 4 receptor gene (МС4RАА, МС4RАG) was established by the average daily gain of live weight during the control period of fattening, the age of reaching live weight of 100 kg, fat thickness at the level of 6–7 thoracic vertebrae, length half of the cooled half-carcass and a complex index of fattening and meat qualities (B. Tyler's index). Young pigs of large white breed line Kotilo UA 8819347 outperformed peers line Azuro UA 8800557 on average daily live weight gain during the control period of fattening by 5.29%, the age of 100 kg live weight – 3.29 %, fat thickness at the level of 6–7 breasts vertebrae – 7.14 %. The longer length of chilled carcass (by 1.13 %) and the length of bacon half of chilled half carcass (by 2.68 %) were characterized by animals of Azuro UA 8800557. The correlation coefficient between fattening and meat qualities in young pigs of large white breed of the controlled herd varies ranging from –0.865 (tr = 22.26, P < 0.001) to +0.913 (tr = 35.43, P < 0.001). The maximum increase in additional products was obtained from young pigs of the МС4RАG genotype (+2.57 %) and the genealogical line Kotilo UA 8819347 (+4.86 %), and its cost is +694.26 – 1312.88 UAH/head. in accordance.

scholarly journals Оцінка свиней blup методом у племінних господарствах Черкаської області

2013 ◽  
pp. 110-113
Author(s):  
М. С. Небилиця
Keyword(s):  
Correlation Coefficients ◽  
Live Weight ◽  
Strongly Correlated ◽  
Large White ◽  
Energy Growth ◽  
Large White Breed ◽  
Young Pigs ◽  
White Breed ◽  
Pork Fat ◽  
Assessment Results

Наведено перші результати оцінки молодняку сви-ней великої білої породи племінних господарств об-ластіBLUPметодом. Визначено коефіцієнти коре-ляції між показниками різних методів оцінки та основними селекційними ознаками у ході зняття тварин із контрольного вирощування. Встановлено, що показник оцінки молодняку свиней вітчизняної селекції BLUP методом вірогідно корелює з показ-никами індексної, рангової, а також оцінки за неза-лежними рівнями. Однак найвищі коефіцієнти коре-ляції встановлено з оціночними індексами за серед-ньодобовим приростом і товщиною шпику (r = 0,52) та енерґією росту й товщиною шпику (r = 0,40). The first assessment results of young pigs of large white breed of pedigree farms of the region by BLUP method are presented.  The correlation coefficients between indicators of   different methods of assessment and core breeding signs, when   animals are removed from the   control of cultivationare defined.  It is  found that the rate of assessment of pigs by BLUP method is strongly correlated with the indicators  of  the  index,  the  rank  and  evaluation by  independent  levels.  However,    higher correlation coefficients with estimated indices of the daily increase  of live weight of pigs and thickness of pork fat (r = 0,52) and energy growth and thickness of pork fat (r = 0,40) is installed.

scholarly journals SIGNS OF PRODUCTIVITY OF YOUNG PIGS OF LARGE WHITE BREED AND THEIR RELATIONSHIP WITH UREA CONTENT AND ACTIVITY OF SOME BLOOD SERUM ENZYMES

2021 ◽  
pp. 41-46
Author(s):  
Віктор Халак
Keyword(s):  
Blood Serum ◽  
Biochemical Parameters ◽  
Live Weight ◽  
Thoracic Vertebrae ◽  
Large White ◽  
Large White Breed ◽  
Urea Content ◽  
Young Pigs ◽  
White Breed ◽  
Fat Thickness

The results of studies of fattening and meat qualities of young pigs of large white breed, some biochemical parameters of blood serum (urea content, aspartate aminotransferase (AsAT) activity, alanine aminotransferase (AlAT) activity are presented), as well as the economic efficiency of research results is calculated. The study was conducted in LLC "Druzhba-Kaznacheyivka"of Dnipropetrovsk region, in the Research center of biosafety and ecological control of agricultural resources of Dnipropetrovsk state agrarian and economic university, meat processing plant «Jazz» and Laborator Livestock y of the State institution Institute of grain crops of NAAS of Ukraine. The work was performed according to the research program of NAAS of Ukraine №30 "Innovative technologies of breeding, industrial and organic production of pig products" ("Pig breeding"), state registration number 0116U001247. The object of the study was young pigs of large white breed. Evaluation of animals for fattening and meat qualities was carried out taking into account the following indicators: average daily live weight gain during the control period of fattening, g, age of live weight 100 kg, days, fat thickness at the level of 6-7 thoracic vertebrae, mm, length of chilled carcass , cm, the length of the bacon half of the cooled half-carcass, cm (M.D. Berezovsky, I.V. Kha’tko, 2005). A comprehensive assessment of young pigs for fattening and meat qualities was calculated according to the B. Tailer index (P.A. Vashchenko, 2019), biometric indicators - according to the methods of G.F. Lakin (1990). Economic efficiency of research results was calculated according to the generally accepted technique (Methodology for determining the economic ..., 1983). It was found that the urea content, activity of aspartate aminotransferase (AsAT) and alanine aminotransferase (AlAT) in the serum of young pigs of the experimental group corresponds to the physiological norm of clinically healthy animals and amount to 4.77±0.576 mol/l, 68.11±6.445 units/l, and 4.22±3.209 units/l, respectively. According to the age of reaching a live weight of 100 kg (days), the thickness of the fat at the level of 6-7 thoracic vertebrae (mm) and the length of the chilled carcass (cm) of the specified production group and breed correspond to class I and class "elite". The maximum values of "average daily gain of live weight during the period of control fattening, kg", "length of chilled carcass, cm", "length of bacon half of chilled carcass, cm" and minimum values of "age of live weight 100 kg, days" and "fat thickness per levels of 6-7 thoracic vertebrae, mm "are characterized by animals in which the complex index of fattening and meat qualities (B. Tailer's index) ranges from 157.68 to 182.36 points. The number of reliable relationships between the biochemical parameters of blood serum, fattening and meat qualities of young white pigs is 26.67 %. The cost of additional products obtained from young pigs with B. Tailer index of 157.68 – 182.36 points is equal to +1732.04 UAH/head.

scholarly journals The growth rate of repair young pigs of Irish origin, depending on the combination of the original breeds

2021 ◽  
pp. 98-107
Author(s):  
V. Ohloblia ◽  
M. Povod
Keyword(s):  
Growth Rate ◽  
Growth Dynamics ◽  
Live Weight ◽  
Intensity Increase ◽  
Large White ◽  
Large White Breed ◽  
Growth Intensity ◽  
Significant Difference ◽  
White Breed ◽  
Local Pigs

The article studied the growth dynamics of purebred and local gilts from birth to 180 days of age. The growth rate of these animals during the rearing period and the regularities of the difference in the growth rate of purebred and local pigs were also investigated. The uneven growth dynamics of both purebred and local replacement gilts has been established. The pigs obtained from the direct and reverse variants of crossbreeding of parental breeds grew more dynamically in comparison with their peers obtained from the purebred variant of breeding of the original breeds. Among purebred gilts, by weaning, the live weight of the Landrace breed increased more dynamically, while after weaning, the animals of the large white breed stood out with a greater intensity increase in live weight. Local gilts did not have a significant difference in the increase in live weight depending on the crossing option, although there was a tendency for a higher increase in live weight with age in pigs from Large White queens and Landrace boars compared to the reciprocal crossing option. During the period of rearing gilts, the highest growth rates were observed in local sows, both from the direct and reverse variants of crossing the animals of the original breeds. Purebred animals of both original breeds were inferior in growth intensity during the period of breeding to their local counterparts 3.0 – 6.3%. Among purebred animals, the least intensive growth during the period of breeding was the Landrace pigs, which were inferior in these indicators to the analogs of the Large White breed by 3.2%, and to the local pigs of both combinations by 6.3%. The advantages in live weight of local replacement gilts are due to their greater growth intensity in the period from weaning to testing at 180 days, which in turn is due to various forms of heterosis manifestation. Key words: mumps, parent breeds, purebred breeding, crossing, heterosis, live weight, growth rate.

scholarly journals The effective use of Pietren breed at purebred and crossbred selection

2018 ◽  
pp. 38-45
Author(s):  
O. Khmeliova ◽  
R. Stavetska
Keyword(s):  
Litter Size ◽  
Average Daily Gain ◽  
Live Weight ◽  
Control Group ◽  
Large White ◽  
Litter Weight ◽  
White Breed ◽  
Fat Thickness ◽  
Effective Use ◽  
Experimental Group

The article highlights the problem of finding optimal variants of breeding process in a herd of pigs at purebred and crossbred selection. For this purpose, the control and two experimental groups were formed: ♀ Pietrain × ♂ Pietrain (control), ♀ (Pietrain × Large White) × ♂ Large White (first experimental group), ♀ (Pietrain × Durok) × ♂ Pitren (second experimental group). The analysis of the animals performance in these groups was carried out in 40, 30 and 35 parities, respectively. The research was conducted on the basis of PE «Maglevovany M.I.» in the Donetsk region. It has been established that the higher level of reproductive characteristics have sows of first experimental group, which have heredity of Large White breed, this breed is traditionally considered as a maternal form in cross-breeding schemes. For instance, their litter size at birth is higher than the same indicator in the control and second experimental group (plus 0,5, P<0,05, and 0,3 piglets, respectively); by the litter size at weaning at 28 days (plus 1,6, P<0,001, and 0,6 piglets); by the litter size at 2 months (plus 1,6, P<0,001, and 0,4 piglets). The highest piglet survival at the age of 2 months was in the litters, whose ancestor were boars of Pietrain breed (second experimental group) − plus 3,6 and 2,3 %, respectively, compered to purebred piglets of Pietrain breed and the first experimental group. For such complex indexes as the litter weight at weaning and litter weight at 2 months the first experimental group had an advantage of 18,1 kg (P<0,001) and 31,1 kg (P<0,001) over the control group (purebred Pietrain) and 5,4 kg and 7,6 kg − over the second experimental group. However, the average piglet weight of sows of second experimental group both at 28 days and at 2 months are equal to the average piglet weight of the same age of the first experimental group. The piglets, which are descendants of boars of meat breeds Duroc and Pietrain show a tendency to the faster growth even in an early age. The avarage live weight of pigs of the second experimental group at the age of 100 days and 7 months is higher compared to avarage live weight of pigs of the same age of the control and the first experimental groups – plus 8,5–21,7 kg (P<0,01 for the second experimental group) and 4,4–13,5 kg (P<0,001 for the second experimental group), respectively. At the age of 100 days, the maximum average daily gain was obtained in the second experimental group with an advantage of 190 g (P<0,001) compared to control group and 115 g (P<0,001) compared to the first experimental group. It is obvious that hybrids with the faster growth, which were obtained through crossbreeding ♀ (Pietrain × Duroc) × ♂ Pietrain reach a live weight of 100 kg in a shorter period: they need less time needed to reach 100 kg of live weight – 32 days less (P<0,001 ) compared to purebred animals of Pietrain breed (control group) and 18 days less (P<0,001) compared to hybrids ♀ (Pietrain × Large White) × ♂ Large White (the first control group). By such an indicator as the fat thickness the hybrids of the second experimental group dominate by purebred pigs of the same age of the control group (minus 0,2 mm), that characterize the low ability of meat breed for getting fat. The fat thickness of hybrids of the second experimental group was less by 0,9 mm (P<0,001) compared to the pigs of the first experimental group. Thus, in this herd in order to improve the reproductive qualities of sows, it is suggested to use the crossbreeding scheme ♀ (Pietrain × Large White) × ♂ Large White and to improve the fattening qualities of young animals the optimal is scheme of crossbreeding ♀ (Pietrain × Duroc) × ♂ Pietrain. Key words: pigs, Pietrain, Large White, Duroc, purebred and crossbred selection, reproductive and fattening qualities.

scholarly journals Structural changes of mucous membrane and the presence of immunoglobulins in small intestines of neonatal pigs

2013 ◽  
Vol 82 (3) ◽  
pp. 317-322
Author(s):  
Tomáš Kanka ◽  
Michal Rolinec ◽  
Danka Šťastná ◽  
Ivan Imrich ◽  
Daniel Bíro ◽  
...  
Keyword(s):  
Mucous Membrane ◽  
Structural Changes ◽  
Postnatal Period ◽  
Control Group ◽  
Large White ◽  
Neonatal Pigs ◽  
Large White Breed ◽  
White Breed ◽  
Mucosal Changes ◽  
Experimental Group

The structure of the small intestine of neonatal pigs has an important effect on immunoglobulin absorption. The aim of the experiment was to observe changes in the mucous membrane and the presence of immunoglobulins in the intestines of piglets during the first hours of their postnatal lives. In total, 80 piglets of the Large White breed were divided into two groups of 40 pigs. One group (control) came from an infection-free breeding, the other (experimental) group came from a breeding with the reproduction and respiration syndrome of pigs. Samples (n = 80) of duodenum, jejunum and ileum were taken at intervals of 0, 3, 6 and 12 h after colostrum intake in order to carry out histological tests. Primary pig antibodies were detected by immunohistochemical staining. The low content of immunoglobulins IgG, IgA and IgM was detected in all segments of intestines of precolostral piglets. Difference (P < 0.05) in size of the mucous membrane was found in the duodenum at the interval of 0, 3 and 6 h (46.03%), in the jejunum at 0 and 12 h (45.98%) and in favour of the control group. Compared to the control group, more Ig (P < 0.01) antibodies were observed in the experimental group: in the duodenum IgG at 12 h (37.22 vs. 10.81%), IgA, 6 h (43.29 vs. 16.71%), IgM, 12 h (25.29 vs. 8.40%), in the jejunum at IgG 12 h (23.97 vs. 9.96%), IgA, 0 h (0.48 vs. 0.37%) and IgM, 3 h (21.80 vs. 10.10%), in the ileum IgG, 0 h (0.38 vs. 0.29%), IgA, 3 h (20.46 vs. 6.45%), IgM, 3 h (31.5 vs. 12.29%). We can conclude that the colostrum intake and the presence of reproduction and respiration syndrome of pigs resulted in changes of microscopic structures of intestines as well as in the presence of Ig in piglet intestines. These mucosal changes significantly affect the development of passive immunity in piglets in the postnatal period.

scholarly journals Features of the growth and development of young pigs of various breeding

2021 ◽  
Vol 273 ◽  
pp. 02012
Author(s):  
Olga Tretyakova ◽  
Anna Degtyar ◽  
Alexander Avdeyev ◽  
Dmitry Ovchinnikov ◽  
Irina Morozyuk
Keyword(s):  
Comparative Analysis ◽  
Growth And Development ◽  
Live Weight ◽  
Large White ◽  
Daily Growth ◽  
Ultrasound Device ◽  
Large White Breed ◽  
Young Pigs ◽  
Breeding Center ◽  
White Breed

The indicators of growth and development, fattening and meat qualities of pigs of the breeding center “Lozovoe” CJSC “Plemzavod-Yubileyny” of the Tyumen region were evaluated. The indicators that characterize the growth and development of young animals were taken into account: live weight, age, average daily growth. When the live weight of 100 kg was reached, an ultrasound device was used to evaluate the thickness of bacon, the depth of muscles and the yield of lean meat, which are in the database of breeding records for 2011-2020. To characterize the meat qualities, 1144 Landrace piglets were slaughtered, 275 - large white breed, 129 - Pietren breed, 339 hybrids (LxKB), 159 hybrids (LxD), 460 hybrids obtained from boars of foreign selection. A comparative analysis of commercial hybrids of various variants of crossing pigs of domestic and foreign selection is carried out. Processing of the research results was carried out in the laboratory of Molecular diagnostics and Biotechnology of the Don State Agrarian University. The influence of the breed is established.

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