|2 (2019)||The morphological composition of anatomic carcass parts in young piglets that belong to different breeds||Annotation|
The morphological composition of anatomic carcass parts in young piglets that belong to different breeds
R. L. Susol 1, V. I. Khalak 2, L. O. Susol 1, O. V. Tatsiy 1 Grain Crops. 2019. 3 (2). 337–344.
2SE Institute of Grain Crops of National Academy of Agrarian Sciences, 14, Volodymyr Vernadskyi Str., Dnipro, 49027, Ukrainе
The results of studies morphological composition of anatomical carcass parts in young piglets that belong to different breeds and with different preslaughter mass have been presented.
It has been established that the specific weight of shoulder-scapular part is reduced with the increase of slaughter weight in carcasses of piglets Large White breed and Pietrain breed but the dorsal lumbar part is increased. The specific weight of pelvic femoral part in carcasses of both breeds remains practically unchanged.
Specific peculiarities of meat Pietrain breed include increased pH levels, poorer tenderness, moisture retention, color intensity, and more significant weight loss during heat treatment. In addition, pork of Pietrain breed has reduced dry matter content, but it has a tendency to increase the protein content and pork of Large White breed has increased fat content. Such increased fat content in pork of Large White breed was caused its difference in energy value. According to the indicators of dry matter and melting point, the preference for the fat of Large White breed was established, which confirms its higher quality compared to the fat of Pietrain breed. The tasting evaluation proved that broth and meat of Pietran breed received significantly lower marks due to aroma, taste and tenderness indices compared with the meat and broth of Large White breed.
Keywords: pigs, young piglets, large White breed, Pietrain breed, physicochemical properties, chemical composition, muscle tissue, anatomical cuts, carcass, morphological composition, tasting evaluation.
|2 (2019)||Fodder conversion in the growth of goblets mature and long meat breeds||Annotation|
Fodder conversion in the growth of goblets mature and long meat breeds
Kozyr V. S.1, Shevchenko T. V.2 Grain Crops. 2019. 3 (2). 345–349.
1SE institute of grain crops of national academy of agrarian sciences, 14 Volodymyr Vernadskyi Str.,
Dnipro, 49027, ukrainе
2National Academy of Agricultural Sciences, 9, Mikhail Emelyanovich-Pavlenka Str., Kiev, 01010, Ukraine
A comparative study of the conversion of energy and dietary protein into products in gobies of Hereford and Charolese breeds was carried out. Animals of the studied breeds showed a high conversion of feed to live weight gain and slaughter rates.
It was found that feed conversion depends not only on the breed, but also on the age of the animals. In the conditions of the steppe zone of Ukraine, with balanced feeding from an industrial and economic point of view, it is possible to grow bulls of both early Hereford and long-growing Charolese breeds for meat.
Hereford bulls after 18 months and especially after 24 months ages exhibit increased fat deposition in carcass and pulp. Long-growing charolais up to 30 months of age intensively build muscle tissue and their meat was lean throughout the entire experimental period.This is reflected in the economic indicators of livestock rearing. It has been proven that it is cost-effective to fatten young stock up to 30 months and get competitive beef in the Dnieper.Animals of early meat breeds of cattle, as a rule, are not large at a comparatively young age (12–13 months), physiologically mature and have puberty, intensively grow at a young age (up to 18 months, ave-rage daily gain of up to 1 kg), But this period is short, and subsequently their growth energy decreases, car-casses settle, the weight of watering and internal fat increases rapidly, in their body the fat is twice as much as protein (ratio 2: 1). Meat ripening also occurs by the age of 12 months (moisture to fat ratio is about 30).The livestock of long-growing meat breeds of cattle is characterized by the ability to increase live weight for a long period (up to 2.5 years) (growths exceed 1 kg per day), they have puberty and physiological maturity relatively later (16–18 months), their carcasses are heavy, meat is not fatty (ratio fat: protein 1: 1). They significantly differ from low-productive indigenous tuberous breeds, which grow slowly for a long time, average daily growths are low (400–500 g), carcasses are not fat (protein: fat ratio 1.5: 2), lean meat.
In the conditions of the steppe zone of Ukraine, with balanced feeding from an industrial and economic point of view, it is possible to grow bulls of both early Hereford and long-growing Charolese breeds for meat.
Keywords: animals, breed, bulls, age, growths, carcass, flesh, cost, profitability, beef.
|2 (2019)||Directed formation of dairy cows of the South of Ukraine with help of polymorphism of structural genes||Annotation|
Directed formation of dairy cows of the South of Ukraine with help of polymorphism of structural genes
Gill M. I. 1, Karateyeyva E. I. 1, Galushka I. A. 1, Smetana A. Yu. 1, Volkov V. A. 2, Tribrate R. A. 1, Gorbatenko I. Y. 1.
Grain Crops. 2019. 3 (2). 350–360.
1 Mykolayiv National Agrarian University of MSE of Ukraine, Heorhyya Honhadze Str, 9, Mykolayiv, 54010,
2 PJS «Breeding plant «Steppe», Zapovitne, Kamensk-Dneprovsky district, Zaporozhye region, 71333, Ukraine
A comparative analysis of the DNA polymorphism of structural genes has been carried out and their effect
on the signs of milk productivity has been evaluated depending on the intensity of the formation of the organism
and linear distribution of cows. The study was carried out in the conditions of cattle herds of Ukrainian black-motley
and red dairy, red steppe breeds. Within each of them, two groups of animals were formed – with a moderate and
fast type of intensity of formation of the organism. A comparative analysis of the genetic structure of these rocks
and lines with polymorphism of the CSN3, BLG, GH and LEP genes using the PCR-RFLP method, as well as an
analysis of their milk productivity, was performed. The results obtained did not establish an unambiguous
dependence of the productive indices of cows on their pedigree in the examined loci. But it should be noted
on the CSN3 gene that the AB genotypes of most research groups, which had higher milk yields during
ontogenesis, and CC and TT homozygotes for LEP. Representatives of the rapid intensity of body formation,
regardless of homo- or heterozygosity, are marked by high productive indicators, excluding the leptin locus,
where representatives of the slow growth rate predominantly prevailed. The data obtained indicate that
alleles of the CNS3 locus were included in the intergroup differentiation of the considered livestock lines,
but without radically different characteristics.The livestock of the Hannover RED and Starbuck lines behind
the BLG locus had a close percentage of heterozygotes (50,0and 52,4%, respectively), however, in the
Valiant and Starbuck experimental groups, the BLG B allele frequency revealed close values of 0,577
and 0,500.Studies have established that, indeed, the Ukrainian black-motley dairy breed, as a daughter
to the Holstein breed, has the highest occurrence of the GH V allele, especially among the Elevation,
Annas Adema, Hannover RED and Starbuck lines.
Key words: body formation rate, polymorphism, locus, kappa-casein, beta-lactoglobulin,
|2 (2019)||Relationship of biochemical parameters of blood serum with fattening and meat qualities and physicochemical properties of the longest back muscles of young pigs of large white breed||Annotation|
Relationship of biochemical parameters of blood serum with fattening and meat qualities and physicochemical properties of the longest back muscles of young pigs of large white breed
Khalak V. I. Grain Crops. 2019. 3 (2). 361–368 .
SEinstitute of grain cropsof national academy of agrarian sciences, 14, Volodymyr Vernadskyi Str., Dnipro, 49027, ukrainе
Studies have shown that young pigs of large white breed of controlled herd are characterized by sufficiently high rates of fattening and meat quality. Thus, the average daily weight gain for the period of control fattening is 805.3 g, the age of reaching the live weight of 100 kg – 175.8 days, the thickness of the pelvis at the level of 6–7 thoracic vertebrae, mm – 22.3 mm, the length of the cooled carcass – 96.3 cm. The complex index of fattening and meat qualities (B. Taylor's index) equals 202.55 points, the index "T-factor" - 0.232 points.
According to the age of reaching the live weight of 100 kg, the young pigs of the experimental group exceed the minimum requirements for the elite class by 14.2 days or 7.47%, the thickness of the sleeve at the level of 6–7 thoracic vertebrae – by 8.7 mm or 28.06%, in length chilled mascara – by 3.3 cm or 3.42%. It was established that the biochemical parameters of the serum of young pigs of large white breed correspond to the physiological norm of clinically healthy animals, namely: total protein content is 71.28 g/l, urea content – 4.50 mmol/l, alkaline phosphatase activity – 291.99 units/l.
An important group of traits are the traits that characterize the qualitative composition of pig muscle tissue, namely its physicochemical properties. Studies have shown that the moisture-holding capacity of the longest back muscle in young white pigs is 60.10%, and the intensity of color is 73.60 units. х 1000, active acidity (pH) – 5.62 units, tenderness – 9.43 sec.
The number of high-quality specimens according to the Meat Quality Scale of the long-lasting back muscle is 8%, the color intensity is 20%, and the tenderness is 8%, according to the physico-chemical quality index.
The coefficient of variation of fattening and meat quality, biochemical parameters of blood serum and physico-chemical properties of muscular tissue of young pigs of large white breed ranges from 1.62 to 21.43%. It is established that the strength of correlation between the signs, according to the Cheddock scale varies from weak to very high, the number of direct relationships is 40.0, the inverse – 60.0%. Significant values of this biometric indicator were established between the following pairs of traits: age of liveweight 100 kg х complex fattening and meat index (B. Taylor) (-0.477±0.1832), average daily live weight gain during the control fattening period х complex fat and meat index (B. Taylor index) (0.502±0.1803), fat thickness at 6–7 thoracic vertebrae х complex fat and meat index (B. Taylor index) (-0.755±0,1367), the thickness of the spike at the level of 6–7 thoracic vertebrae х index «T-factor »(0,989 ± 0,0308), color intensity х muscle activity of alkaline phosphatase (-0,483 ± 0,1826).
Keywords: young pigs, breed, feeding and meat qualities, serum biochemical parameters, selection index, variability, correlation.
|2 (2019)||Modern approaches in determining the technological parameters and developing new volume-planning decisions for the reconstruction of pig premises||Annotation|
Modern approaches in determining the technological parameters and developing new volume-planning decisions for the reconstruction of pig premises
Voloshchuk V. M., Smyslov S. Yu., Pidtereba M.O., Pidtereba O.I. Grain Crops. 2019. 3 (2). 369–376.
Institute of Pig Breeding and agroindustrial production of NAAS, 1Shvedska Mohyla Str., Poltava, 36013, Ukraine
The low efficiency of work of farms which produce pig breeding products has given rise to the challenge of finding new volumetric-planning decisions that would allow more efficient use of existing production areas and increase the reproductive capacity of sows and increase of pig breeding products without increasing the maternal live-stock.
By means of computer modeling of production activity it was found out the optimized technological and production indexes, which were the basis for the development of technology for the transfer of pig farms from the round to the current system of receving farrows, while simultaneously conducting the reconstruction and division of the production area under sections with animals of different technological groups.
It has been determined the fact that preliminary computer modeling of production processes allows to quickly find optimized values of zootechnical and production indexes and to correctly distribute the production area under the livestock of different technological groups taking into account the sows multiplicity, the level of technological waste, the percentage of the realized of weaned livestock for population, the intensity growth and therefore the length of stay of the animals in blocks of rearing and fattening.
The use of software greatly simplifies the process of determining the number of machines and the area for their placement, depending on the number of livestock in each section, the duration of the rhythm and the number of animals in the step group, to find the optimal balance between the desired and actual technological, zootechnical and production indexes.
Key words: technology, reconstruction, round and current farrowing system, optimization, livestock movement.
|1 (2019)||Growth, fattening and guality parameters among young pigs with different snp genotypes of melanocortin - 4 receptor gene (Mc4r)||Annotation|
Growth, fattening and guality parameters among young pigs with different snp genotypes of melanocortin - 4 receptor gene (Mc4r)
V. I. Khalak Grain Crops, 2019, 3 (1). C. 127-132
SEinstitute of grain cropsof national academy of agrarian sciences, 14 Volodymyr Vernadskyi Str., Dnipro, 49027,ukrainе
The results of researches of absolute and integrated growth parameters, fattening and meat qualities of young pigs of different genotypes according to the receptor gene of melanocortin 4 (Mc4r) are presented, and the level of correlation relations between the features is calculated.
Studies have shown that according to the live weight indices at the 2–4-month of age, the age of reaching a live weight of 100 kg and the thickness of the fat at the 6–7 thoracic vertebrae, the young pigs of the large white breed of the control herd (Druzhba-Kaznacheyivka LTD of the Dnipropetrovsk region) meets the requirements of class I and elite class. It was found that young pigs of the genotype AA for the receptor gene of melanocortin 4 (Mc4r) prevails on the peers of the genotype AG on the basis of growth on average by 5.62 %, and on fattening qualities – by 3,09 %. The thickness of the fat at the level of 6–7 thoracic vertebrae is the difference in favor of young pigs of large white breeds of genotype AG of 6.75 %.
The correlation coefficient between absolute and integrated growth rates, fattening and meat qualities in young pigs of different genotypes according to the receptor gene of melanocortin 4 (Mc4r) varied from – 0.863 ± 0,0958 (thickness of fat at 6–7 thoracic vertebrae, mm х SI5 – selection index of fattening and meat qualities of young pigs, points) to + 0,675 ± 0,1374 (live weight at 2 months of age, kg х index «intensity of formation» (Δt), points).
Key words: young piglets, genotype, ontogenesis, integrated growth indices, fattening qualities, correlation.
|1 (2019)||Prospects for development of animals husbandry in conditions of State enterprise «Experimental farm «Krasnograds’ke||Annotation|
Prospects for development of animals husbandry in conditions of State enterprise «Experimental farm «Krasnograds’ke
UDC: 636.2.084/085.13 https://doi.org/10.31867/2523-4544/0070
Kozyr V. S., Maystrenko A. N.. Grain Crops, 2019, 3 (1). 133–138.
SE institute of grain crops of national academy of agrarian sciences, 14 Volodymyr Vernadskyi Str., Dnipro, 49027, ukrainе
Experimental farm "Krasnograds’ke" occupies a leading position in the field of animal husbandry. Analyzing the results, we see additional reserves to improve its efficiency.
One of the main conditions for increasing the number of holsteinized cattle is reproduction. This is a very complex process, which depends on the obligatory implementation of many factors. It is necessary to steam cows and heifers with high-quality bulls in accordance with the schedule of their daily rotation and planning of lodges, to set up the account and organize the mating of animals, to control their physiological state, to observe the course of birth and restoration of the organism in the postnatal period, to stimulate and synchronize the next hunt, to carry out obstetric and gynecological dispensary and practice the herd's reproduction day (weekly) with status analysis and defining ways to eliminate disadvantages.
The primary task should be to strengthen the forage base. It is necessary to determine the area of arable land under feed crops, to take measures to increase yields, to organize the harvesting of fodder crops in the phase of the highest yield of nutrients, to ensure the preservation of feed, without losing their nutritional value.
In pigs, it is necessary to inseminate sows with pure-breeding kennels, repair guinea pigs at the age of 8.5–9 months, live weight 125–130 kg and length of the body – 132–136 cm, plan insemination and farrowing of the uterus, control their physiological state, follow the course fertility and restoration of the organism in the postnatal period, to prevent infertility of pigs.
The implementation of this program requires the obligatory implementation of the following measures: it is necessary to feed pigs twice a day only high-quality feed in the form of feed mixes in accordance with detailed norms, daily cleaning of feeders, water in dusts should be continuous and clean, change the diet gradually, in separate feeders for рiglets should be constantly fed with barley, ore clay, chalk, charcoal.
The implementation of the programmed tasks by scientists and specialists will improve the reproduction of livestock in pigs and pigs, and, on this basis, increase the number of livestock, and the creation of appropriate technological conditions for breeding animals will contribute to the growth of the production of competitive products of livestock and pig breeding.
Key words: milk cattle, sows, feeding, keeping, technology, production, beef, quality, milk, meat.
|1 (2019)||Long period of lactation and level of milk production of cows on industrial complex||Annotation|
Long period of lactation and level of milk production of cows on industrial complex
UDC 636.082.22:637 https://doi.org/10.31867/2523-4544/0071
Pishchan I. S., Lytvyschenko L. O., Honchar A. O., Pishchan S. G. Grain Crops, 2019, 3 (1). 139–148.
Dnipropetrovsk State Agrarian and Economic University, 25 Sergiya Efremova str., Dnipro, 46000, Ukraine
Increasing the milk production of cows is the main task of breeding in dairy cattle, the implementation of which depends on many factors, including the reproductive ability of animals. The aim of the research was to determine the characteristics of the realization of the genetic potential of milk production of Holstein breed cows during a long lactation period at exploitation in the industrial complex. For research were selected cows of all ages and formed in six groups: I group of first-heifers (45 heads); II group of the cow of the second lactation (26 heads); ІІІ group of animals of the third lactation (21 heads); IV group of cows of the fourth lactation (34 heads); V group of animals of the fifth lactation (47 heads); VI group of cows of the sixth lactation (81 heads).
In the conducted researches it was established that the duration of one productive period in cows of different ages in the industrial complex, from the first and the sixth lactation, is in the range from 583.1 to 635.6 days. During this period, from the animals of I and II groups in the first and second lactation was obtained almost the same amount of milk, which was, on average, respectively, 12605.3 kg of physical, or 12275.3 kg of 4 % milk, and 12370.3 kg of physical, or 12061.4 kg of 4 % milk. In cows of ІІІ group, the level of milk production in the third lactation was higher in relation to the index of the first-heifers of the I group, respectively, at 5.37 and 7.13%, and amounted to an average of 13321.0 kg of physical or 13217.9 kg of 4% milk. In animals of the IV group, milk production in the fourth lactation amounted to, on average, 14062.3 kg of physical or 13666.1 kg of 4% milk, which exceeds the index of first-heifers of I group by 10.36 % (P<0.05) and 10.18 % (P<0.05). In the fifth lactation from V group of cows was obtained, on average, 14435.2 kg of physical or 14113.4 kg of 4 % milk. These figures are higher values of animals of I group in the first lactation, respectively, at 12.68 % (P<0.01) and 13.02 % (P<0.01). The highest index of milk secretion during the entire lactation period was observed in cows of VI group, from which in sixth lactation obtained an average of 15434.4 kg of physical or 15218.2 kg of 4 % milk. This level of milk production is higher than that of first-heifers of I group, respectively, on 18.33 % (P<0.001) and 19.34 % (P<0.001).
In recalculation on 305 days of lactation, the milk production of the first-heifers of I group is at the level of 7614.1 kg of physical or 7415.2 4 % milk. In animals of the ІІ group, the milk-yield was 8355.4 physical, or 8156.1 kg of 4 % milk, which is more than the index of the first-heifers of the I group, respectively, at 8.87 % (P<0.05) and 9.08 % (P<0.05). Animals of III group secreted during this period on average 8562.6 kg of physical or 8503.1 kg of 4 % milk, which is more than the index of cows of І group, respectively, on 11.08 % (P<0.01) and 12.79 % (P<0.001). Cows of the ІV group produced an average 9138.3 kg of physical or 8889.4 kg of 4 % milk per 305 days, which exceeds the value of the first-heifers of the І group by 16.68 % (P<0.001) and 16,58 % (P<0.001). The highest milk production was found in cows of V group, which obtained 9631.6 kg of physical or 9418.3 kg of 4 % milk, which is more than the indicator of animals of the III group, respectively, on 11.10 % (P<0.01) and 9, 72% (P<0.01). The level of milk production of cows of the VI group, practically consistent to the indicators of the V group of animals of the fifth lactation and amounted to 9587.2 kg of physical or 9464.1 kg of 4 % milk.
It has been proved by researches that during the long lactation activity there is practically no functional relation between live weight and general milk-yield in cows of different ages – from r = -0.176 in animals of V group to r = 0.145 in cows of ІІ group.
In general, Holstein cows for a long duration of the lactation period are characterized by satisfactory adaptive properties, since the index of adaptation is below the neutral value. Thus, in cows of III and IV groups, the adaptation index is at the level of -14.7 ± 0.55 and -14.5 ± 0.49, respectively. In animals of ІІ and V groups, this index is slightly higher and, on average, is -16.6 ± 0.72 and -17.0 ± 1.75, respectively. In animals of ІІ and V groups, this index is slightly higher and, on average, is -16.6 ± 0.72 and -17.0 ± 1.75, respectively. The relatively low index of adaptation in VI group of cows is -15.4 ± 0.6, while its highest value in first-heifers of I group is -18.2 ± 0.52 units. Indicators of the adaptation index have a low functional relation with the overall milk-yield of cows of all ages – from r = -0.078 in cows of III group with a third lactation to r = 0.577 in animals of V group with fifth lactation.
Key words: cow, lactation, milk-yield, milk fat, protein, index of adaptation.
|1 (2019)||Influence of feed additives on the growth of pigs in the transition period||Annotation|
Influence of feed additives on the growth of pigs in the transition period
UDC 636.4.085.5. https://doi.org/10.31867/2523-4544/0072
Maystrenko A. N., Dimchya G. G., Denysyuk O. V. Grain Crops, 2019, 3 (1). 149–153.
SEinstitute of grain cropsof national academy of agrarian sciences, 14 Volodymyr Vernadskyi Str., Dnipro, 49027,ukrainе
The experimental part of the research was conducted in the conditions of LLC "Agro-Aurora" of the Nikopol district of the Dnipropetrovsk region. A comparative analysis of the growth of guinea pigs in the transition period using comparative standard (control group) and advanced author (experimental group) of feed additives was conducted.
The conducted analysis and biological evaluation of the dietary value of ration the pig in the experimental groups indicates that the total nutrition, exchange energy, the amount of dry matter, raw and digestible protein, calcium and phosphorus conform to approved norms.
At the same time, in the diet of the diet, there is a shortage of individual elements,%: cop-per – 12,15–20,59; zinc – 25-42,42; manganese – 8,47–53,72; cobalt – 62,36–76,79; vitamin D3–94; B12 – 74–83. At the same time there is an excess of other nutrients: lysine – 35, methionine + cystine – 50, raw fiber more than 1,8 times, iron – 1,5 times, iodine – 1,7 times, carotene – 2,8 times, tocopherol – in 2,3 times, thiamine – in 2,7 times, riboflavin – in 1,7 times, pantothenic acid – in 4,7 times, choline – in 1,3 times.
In order to eliminate the identified imbalance of individual nutrients and obtain the maxi-mum growth of the pigs in the experimental group of 3 and 4 months of age, respectively, we fed the improved feed additives.
Due to the improved formulation of fodder supplements, the ration of the experimental group of swine for the basic vital substances was balanced, which positively influenced their growth and development.
Control of the metabolism of the mumps was carried out by biochemical study of blood parameters: total protein, total calcium, alkaline reserve, inorganic phosphorus.
It should be noted that in the pigs of experimental groups the biochemical parameters of blood were within the limits of the existing norms. But in the experimental group, the swine showed a tendency for these indicators to approach the upper limit of norms and they were higher than in the control group,%: the total protein was 2,23, the alkaline reserve was 6,38, the total calcium was 5,86, and inorganic phosphorus – 4,06. However, no reliable difference was found in comparison with those in the control animals. In our opinion, this is due to the high level of feeding of the pigs of both groups in terms of total nutrition, dry matter, raw and digestible protein, lysine, methionine + cystine. What is evidenced by the results of the growth of piglets of 3 and 4 months of age.
The animals of the experimental group had a significantly higher live weight in both three and four months of life. In the experimental group, at the age of three months, the weight of the piglets was 35,30 ± 0,753 kg, while in the control group it was 31,67 ± 0,747 kg, which was significantly less (P<0,001); in four months respectively – 55,58 ± 1,03 and 47,27 ± 1,05 kg respectively. Daily increments in the experimental group were 540 ± 5,35 g and 676 ± 9,33 g, while in the control group it was 435 ± 7,66 and 520 ± 6,98 g (P<0,001).
Thus, the growth of the pigs of the experimental group testifies to the reliability of the ef-fective influence of author's balancing feed additives in comparison with standard ones. Once again, one truth is confirmed – since there are no standard feeds, the proposed feed additives for a standard recipe will not be effective either.
Analyzing the level of average daily increments and feed costs per 1 kg of growth of the experimental group, during the whole period of their growth and development, a generalized con-clusion was made that the continuous replenishment of diets with vital elements at the expense of improved feed additives has a positive effect.
An economic assessment of the use of advanced feed additives to a particular diet, growth and developmental stages of the growth of pigs showed a relatively high efficacy in relation to the control group.
Key words: piglets, ration, feed, live weight, daily gain, feed additives
|1 (2019)||Method for assessing reproductive qualities of boars||Annotation|
Method for assessing reproductive qualities of boars
UDC 636.4: 082 https://doi.org/10.31867/2523-4544/0074
Zeldin V. F. Grain Crops, 2019, 3 (1). 159–162.
SEinstitute of grain cropsof national academy of agrarian sciences, 14 Volodymyr Vernadskyi Str., Dnipro, 49027,ukrainе
In the opinion of the English researcher and the practice of G. Johnson, the pedigree does not affect the size of the sow's nest. Its function is fertilization, a small amount of eggs that ovules the sow. It has been found that the stalk has a great influence on the size of the nest of their daughters, which, in turn, only emphasizes the bias of the existing system approach to determining the level of reproductive qualities of the pedigree. Therefore, the current problem has caused the direction of our research.
The subject of research was the productive qualities of sows of large white breed and hybrid nodes. The performance of animals is evaluated according to the requirements and in an innovative way. Statistical processing of experimental materials was carried out in accordance with the methodology of Plokhinsky M.O. Researches were conducted at LTD "Privat-Agro" of Dnipropetrovsk region in 2016. Under control were 2 terminal boars and 35 sows of large white breed of thick meat-fat type body structure.
The assessment of the reproductive capacity of the sows was carried out in accordance with the requirements of the Instructions for the boning of pigs for the four tribal classes (elite, first, second and extracurricular), and boars– for three (elite, first, second). The use of the index reception of the evaluation of the reproductive qualities of the chickens allows for a greater degree of differentiation of the pedigrees on a basis than in accordance with the requirements of the instruction on the boning of pigs.
When comparing the multiplicity indices of sows fertilized with semen, experimental horses did not establish a probable difference between the two averages on the given sign (td = 1,73 за γ = 46). As a result of the comparison, there is no probable difference between the pregnant women on the basis of "fertilization of the uterus from the first insemination" (td = 1,73 за γ = 46). The result of the comparison of the indicator "the piglets received on 100 inseminants of sows for the first time" of the two experimental horses was td = 0.74 for γ = 33. Thus, it is obvious that the last way of comparing the calculated integrated indicators of estimation of the bone that characterizes its own reproductive capacity is greater than the previous indicators.
Key words: boar, sow, multiplicity, fertility, index, estimation.