scholarly journals Feeding and meat qualities of young pigs of different origin and intensity of formation in early ontogenesis

2019 ◽  
Vol 21 (91) ◽  
pp. 10-15 ◽  
Author(s):  
V. I. Khalak ◽  
B. V. Gutyj ◽  
O. I. Stadnits’ka
Keyword(s):  
Live Weight ◽  
Early Ontogenesis ◽  
Daily Weight Gain ◽  
Thoracic Vertebrae ◽  
Average Daily Weight Gain ◽  
Large White ◽  
Large White Breed ◽  
Young Pigs ◽  
White Breed ◽  
Different Origin

The results of studies of fattening and meat qualities of young pigs of different origin and intensity of formation in early ontogenesis are presented.  The economic efficiency of the results of the studies is calculated. The study was conducted under the conditions of pedigree reproducer for breeding pigs of the large white breed of LTD “Druzhba-Kaznacheevka” of Dnipropetrovsk region. The object of study was young pigs of English and Hungarian origin, as well animals of varying intensity of formation in early ontogenesis. Estimation of young pigs by absolute and integrated indicators of fattening and meat qualities was carried out taking into account the following quantitative characteristics: average daily weight gain for the period of control fattening, kg, age of reaching live weight of 100 kg, days, thickness of the lard at the level of 6–7 thorax , mm, length of cooled carcass, cm, length of bacon half carcass, cm, index “intensity of formation” (∆t), selection index (SI) and “T-factor”. The economic efficiency of the results of the research was calculated according to the indicator "average daily increase of live weight during the period of control fattening, kg". The analysis of the results of the research shows that the young pigs of the large white breed of the control herd by the age of reaching the live weight of 100 kg were outweighed by the minimum requirements of the Instruction for pig testing by 9.78%, by the thickness of the lard at the level of 6–7 thoracic vertebrae – by 30.33% and by length of the cooled carcass – by 3.52%. Taking into account the class of origin and index “intensity of formation, points” (∆t), the difference between the groups by age of reaching live weight of 100 kg, the thickness of the pelvis at the level of 6–7 thoracic vertebrae and the length of the cooled carcass ranges from 2.24 to 8.03%. It was found that in terms of the main indicators of fattening and meat quality, the young pigs of the large white breed of Hungarian breeding are more consolidated (К1 = 0.085–0.344, К2 = 0.086–0.338). The maximum increment of additional production (average daily weight gain during the control fattening period, kg) was obtained from young pigs of large white breed of English origin (2.39%) and animals with index ∆t at the level of 0.619–0.748 points (1.38%). To evaluate the animals of the main herd (brood boars, sows) according to the fattening and meat characteristics of their offspring, we suggest the use of SI and T-factor breeding indices.

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 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 Схрещування свиней як спосіб підвищення їх відгодівельних і м’ясних ознак

2015 ◽  
pp. 174-177
Author(s):  
В. О. Горобець
Keyword(s):  
Growth Rate ◽  
Final Stage ◽  
Thoracic Vertebrae ◽  
Large White ◽  
Young Stock ◽  
Large White Breed ◽  
Foreign Origin ◽  
Young Pigs ◽  
White Breed ◽  
German Origin

У статті викладені результати оцінювання сви-ней іноземного походження та кровності за відгоді-вельними й м’ясними ознаками з визначенням кращихпоєднань батьківських генотипів для одержанняефекту гетерозису у потомків. Дослідженнями вста-новлено, що найвищу інтенсивність росту під часвідгодівлі мав гібридний молодняк, одержаний у разісхрещування двохпородних свиноматок (велика білафранцузького походження х дюрок німецького поход-ження) з кнурами породи п’єтрен англійського поход-ження. Найбільш відчутне зниження у потомків тов-щини шпику на рівні 6–7-го грудних хребців та підви-щення маси задньої третини півтуші забезпечитьвикористання на заключному етапі трьохпородногосхрещування кнурів породи п’єтрен англійського по-ходження. Чистопородне розведення свиней великоїбілої породи не сприяє підвищенню відгодівельних ім’ясних ознак у молодняка, навіть за об’єднання в їхгенотипі спадковості тварин французького, німецько-го й англійського походження. Прибутковість відго-дівлі молодняка свиней в умовах сучасного промисло-вого виробництва повинно ґрунтуватися на поєдну-ваності порід, особливо, коли використовуютьсятварини іноземного походження. The article presents the results of the evaluation of pigs of foreign origin and crownest of  fattening and meat traits with determining of the best combinations of parental genotypes to obtain the effect of heterosis in the descendants. Research has shown that a hybrid  young stock had the highest growth rate during feeding, who was obtained by crossing dohorty sows (large white of French origin x Duroc of German origin) with grunts of Pietrain breed of English origin. The largest declines of the young stock’s backfat thickness at 6-7 thoracic vertebrae and increase the mass of the posterior third of the side will ensure three times Pietrain boars’ cross breeding of English origin at the final stage. Purebred breeding of pigs of large white breed does not promote the fattening and meat traits in young stock, even for the unification of their genotype heredity animals of French, German and English origin. The profitability of fattening of young pigs in the conditions of modern industrial production should be based on associations of species, particularly when animals of foreign origin are used.

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 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.

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.

scholarly journals Fattening and meat qualities of store pigs of large white breed of different intra-breed differentiation by melanocortin-4 receptor gene (MC4R)

2020 ◽  
Vol 23 (9) ◽  
pp. 30-37
Author(s):  
Viktor Khalak
Keyword(s):  
Weight Gain ◽  
Receptor Gene ◽  
Live Weight ◽  
Thoracic Vertebrae ◽  
Large White ◽  
Large White Breed ◽  
Melanocortin 4 Receptor ◽  
Melanocortin 4 Receptor Gene ◽  
White Breed ◽  
Fat Thickness

The study presents the results of research on fattening and meat qualities of store pigs of large white breed of different intra-breeding differentiation by the gene of melanocortin-4 receptor (MC4R). The study calculated the economic efficiency of animals of different genotypes. The following fattening and meat qualities were evaluated: 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; length of bacon half of chilled half-carcass, cm. It was established that store pigs of controlled population at the age of reaching live weight of 100 kg, fat thickness at the level of 6-7 thoracic vertebrae, and length of chilled carcass exceed the minimum requirements of the elite class by 13.69%. A significant difference between animals of different genotypes by the gene of the melanocortin-4 receptor (MC4RAA, MC4RAG) was established according to the average daily live weight gain during the control fattening period (4.24%, P <0.01), the age of reaching a live weight of 100 kg (2.18%, P <0,01), fat thickness at the level of 6–7 thoracic vertebrae (8,45%, P <0,05), length of chilled carcass (2,26%, P <0,001), length of bacon half of chilled half carcass (3.36%, P <0.001) and selection index (SI) (18.92%, P <0.05). Significant correlations in animals of different genotypes by the melanocortin-4 receptor gene (MC4RAA, MC4RAG) were identified regarding the following features: average daily live weight gain during the control period of fattening × age of 100 kg live weight (-0.475 – -0.853), average daily live weight for the period of control fattening × SI (+0.686 - +0.770), SI × age of reaching live weight 100 kg (+0.515 – -0.721), SI × fat thickness at the level of 6-7 thoracic vertebrae (-0.944 – -0.885), length of chilled carcass × length of bacon half of chilled carcass (+0.899 – +0.861). The maximum increase in additional products was obtained from the sale of young pigs by the gene for the melanocortin-4 receptor MC4RAG – +2.02%.

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

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

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

scholarly journals EFFICIENCY OF INTRAUTERINE INSEMINATION IN BREEDING SOWS

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

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

The use of moist barley in diets for growing pigs

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

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

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