PRECOCITY AND MEAT PRODUCTIVITY OF SHEEP OF ZONED SEMI-FINE WOOL BREEDS

Author(s):  
A.YA. KULIKOVA A. ◽  

The assessment of growth intensity and meat productivity of young sheep of the southern meat breed (YM) in comparison with peers of the North Caucasian meat and wool breed (SK), Soviet meat and wool breed (SMSH) and Kuban Lincoln (KL) is given in order to determine their eff ectiveness in purebred breeding. The advantage of young YUM breed in live weight – by 9.5-12.0%, growth intensity – by 9.2%, slaughter weight – by 10.0%, feed payment – by 7.2% compared to peers of zoned semi-fi ne-wool breeds was determined.

Author(s):  
S.P. Arkhipova ◽  
◽  
L.F. Yakupova ◽  
O.A. Gracheva ◽  
◽  
...  

The introduction of «Yantovet» into the diet of rabbits at a dose of 0,33 ml per 1 kg of live weight has a stimulating effect on the intensity of their growth and productivity. By the end of the experiment, the live weight of the experimental group was higher than that of the control by 13 %. The average daily gain for the entire period of experiments in the experimental group exceeded the same indicator in the control by 38,7 %. The rabbits of the experimental group had a higher level of productivity, as the slaughter weight and slaughter yield of rabbit carcasses in the experimental group in relation to the control group were higher by 16,6 and 2,9 %. The study drug is recom-mended to be used in the diet of rabbits in the composition of drinking water.


2021 ◽  
Vol 6 (1) ◽  
pp. 32-38
Author(s):  
Khamidulla Baymishev ◽  
Baluash Traisov ◽  
Murat Baymishev ◽  
Kayrly Esengaliev

The aim of the research is increasing the productive indicators of replacement sheep of different genotypes by im-proving the interior indicators. To conduct the research, three groups of ewe hoggs with 20 heads each were formed: 1 group – ewe hoggs born from stud rams and Akzhaik ewes (AKSHM x AKSHM); 2 group – ewe hoggs born from stud rams of the North Caucasian breed and Akzhaik ewes (SK x AKSHM); 3 group – ewe hoggs born from Kuibyshev stud ram breed and Akzhaik ewes (KB x AKSHM). Blood parameters, live weight at the age of 4 and 8 months, hair cut at the age of 8 months was studied of animals of these groups. It was found that blood parame-ters of the ewe hoggs of different genotypes have significant differences and these affect the indicators of growth intensity and hair cutting. The content of red blood cells and hemoglobin of ewe hoggs from group 3 was higher by 0.551012/l and 9.32 g/l, respectively, than of ones from group 1. The biochemical blood parameters of crossbred ewe hoggs from groups 3 and 2 at 4 and 8 months of age in terms of total protein by 2.84 and 4.73 g/l, glucose – by 0.86 and 1.02 mmol/l exceeded the results of purebred Akzhaik ewe hoggs. Crossbreds of groups 2 and 3 in the 8-month age were superior to their herdmates of Akzhaik breed in live weight by 3.04 and 2.74 kg, and the washed wool cut – by 0.18 and 0.24 kg, respectively.


Author(s):  
I.F. GORLOV ◽  
M.I. SLOZHENKINA ◽  
N.I. MOSOLOVA ◽  
A.A. KAIDULINA ◽  
V.S. GRISHIN ◽  
...  

В работе приведены исследования по скрещиванию комбинированных пород крупного рогатого скота с мясными с целью создания репродуктивных мясных стад на базе использования помесных телок первого поколения. Во все возрастные периоды коровы симментальской, герефордской пород и их помеси с генотипом симменталы герефорды имели определенные различия по живой массе. Помеси превосходили по данному показателю в возрасте 3, 4 и 5 лет сверстниц симментальской породы на 6,78 3,98 и 3,61 и герефордской, соответственно, на 2,64 2,52 и 1,60. Они обладали хорошими воспроизводительными качествами. Так, в возрасте 205 дней дочери помесных коров по живой массе превосходили потомков чистопородных симментальских и герефордских коров, соответственно, на 21,78 и 3,64 кг. У помесных бычков выход туши был выше, чем у чистопородных симментальских и герефордских сверстников на 3,20 и 2,03, убойная масса на 73,40 и 38,37 кг, а убойный выход на 3,44 и 2,14, соответственно. В результате проведенной оценки показателей, характеризующих мясную продуктивность чистопородного и помесного потомства, можно сделать вывод о характере сочетаемости симментальской и герефордской пород и о том, что помеси, при сравнении их с исходными родительскими формами, имели во всех случаях лучшие показатели, характеризующие мясную продуктивность.The paper presents the research on the crossing of combined breeds with meat in order to create reproductive beef herds based on the use of firstgeneration mixed heifers. In all age periods of the Simmental and Hereford cows and their mixture with the genotype simmentals x the Hereford had certain differences in live weight. Hybrids aged exceeded in this indicator at the age of 3, 4 and 5 years of age peers of the Simmental breed by 6.78 3.98 and 3.61 and Hereford, respectively, by 2.64 2.52 and 1.60. Hybrids had good reproductive qualities. Thus, at the age of 205 days, the daughters of crossbred cows exceeded the descendants of purebred Simmental and Hereford cows by 21.78 and 3.64 kg, respectively. Crossbred bulls had higher carcass yield than purebred Simmental and Hereford peers by 3.2 and 2.03, slaughter weight by 73.40 kg and 38.37 kg, slaughter yield by 3.44 and 2.14, respectively. The result of the evaluation of indicators characterizing the meat productivity of purebred and crossbred offspring, it can be concluded that the nature of the compatibility of the Simmental and Hereford breed and that the hybrids, when compared with their original parent forms, had in all cases the best indicators characterizing the meat productivity of animals.В работе приведены исследования по скрещиванию комбинированных пород крупного рогатого скота с мясными с целью создания репродуктивных мясных стад на базе использования помесных телок первого поколения. Во все возрастные периоды коровы симментальской, герефордской пород и их помеси с генотипом симменталы герефорды имели определенные различия по живой массе. Помеси превосходили по данному показателю в возрасте 3, 4 и 5 лет сверстниц симментальской породы на 6,78 3,98 и 3,61 и герефордской, соответственно, на 2,64 2,52 и 1,60. Они обладали хорошими воспроизводительными качествами. Так, в возрасте 205 дней дочери помесных коров по живой массе превосходили потомков чистопородных симментальских и герефордских коров, соответственно, на 21,78 и 3,64 кг. У помесных бычков выход туши был выше, чем у чистопородных симментальских и герефордских сверстников на 3,20 и 2,03, убойная масса на 73,40 и 38,37 кг, а убойный выход на 3,44 и 2,14, соответственно. В результате проведенной оценки показателей, характеризующих мясную продуктивность чистопородного и помесного потомства, можно сделать вывод о характере сочетаемости симментальской и герефордской пород и о том, что помеси, при сравнении их с исходными родительскими формами, имели во всех случаях лучшие показатели, характеризующие мясную продуктивность.


Author(s):  
Д.Р. СМАКУЕВ ◽  
А.Ф. ШЕВХУЖЕВ ◽  
В.А. ПОГОДАЕВ

Проведен анализ качественных характеристик мясной продуктивности бычков абердин ангусской породы в зависимости от типов телосложения. Научно-хозяйственный опыт проводился в одном из хозяйств Карачаево-Черкесской Республики в 2020—2021 годах. Из потомства быков крупного (I группа) и мелкого типа (II группа) абердин ангусской породы было сформировано 2 группы по 14 голов. По окончании контрольного выращивания провели контрольный убой бычков в 18-месячном возрасте. Установлено, что бычки I группы достоверно (Р<0,01) превосходили по живой массе аналогов II группы. Молодняк I группы имел более высокую (на 31,4 кг) предубойную массу и более тяжелые туши по сравнению с бычками II группы на 28,3 кг (Р<0,01). По убойной массе бычки I группы превосходили сверстников II на 26,5 кг (Р<0,01), а по убойному выходу — соответственно на 1,98 абс.%. При обвалке молодняка I группы было получено мякоти больше на 9,9 кг (Р<0,01) по сравнению с данными по обвалке туш бычков II группы. Химический анализ различных проб мяса показал, что туши бычков I группы содержали несколько меньше жира по сравнению с тушами молодняка II группы, как общего количества в средних пробах, так и внутримышечного в пробах из мускулов. Различия между группами по другим показателям были незначительными. Наибольшее количество жира было в отрубах, дающих лучшие сорта мяса, — бедренном и спинно-грудном, несколько меньше содержалось в лопаточной части, дающей мясо второго сорта. По влагосвязывающей способности, цвету и нежности мяса различий между группами не обнаружено. The analysis of the qualitative characteristics of the meat productivity of the Aberdeen Angus bull calves, depending on the body types, is carried out. Scientific and economic experience was conducted in one of the farms of the Karachay-Cherkess Republic in 2020-2021. From the offspring of large (group I) and small type bulls (group II) of the Aberdeen Angus breed, 2 groups of 14 heads were formed. At the end of the control cultivation, a control slaughter of steers was carried out at the age of 18 months. It was found that the bulls of group I were significantly (P<0.01) superior in live weight to the analogues of group II. The young animals of group I had a higher pre-slaughter weight (by 31.4 kg) and heavier carcasses compared to the steers of group II by 28.3 kg (P<0.01). According to the slaughter weight, the bulls of the first group exceeded the peers of the second by 26.5 kg (P<0.01), and according to the slaughter yield — by 1.98 abs.%, respectively. When deboning young animals of the first group, more pulp was obtained by 9.9 kg (P<0.01) compared with the data on deboning the carcasses of bulls of the second group. Chemical analysis of various meat samples showed that the carcasses of group I steers contained slightly less fat compared to the carcasses of young animals of group II, both total in average samples and intramuscular in muscle samples. The differences between the groups on other indicators were insignificant. The greatest amount of fat was in the cuts that give the best varieties of meat — femoral and dorso-thoracic, slightly less was contained in the scapular part, which gives the second grade meat. No differences were found between the groups in terms of the moisture binding ability, color and tenderness of the meat.


2020 ◽  
pp. 15-17
Author(s):  
Anastasia V. Zabashta ◽  
◽  
Nikolay N. Zabashta ◽  
Ekaterina P. Lisovitskaya ◽  
Elena N. Golovko ◽  
...  

In connection with the increasing requirements for the quality of beef, the need for further technological solutions improvement for the cultivation and fattening of beef calves, aimed at improving meat productivity, ensuring not only the quality, but also the safety of meat, has acquired particular relevance. Data on the production of environmentally friendly raw meat obtained in the foothill zone of Karachay-Cherkessia from the bulls of the Aberdeen-Angus breed in modern conditions of the development of the meat industry are presented in the article. During the growth and development of animals, significant qualitative and quantitative changes occur, associated with an increase in weight and a change in the morphological composition of the carcass. The morphological composition of carcasses, meat yield and its chemical composition in the final period of fattening were studied. When calves reached the slaughter live weight, slaughter was carried out and the meat qualities were studied. Carcass weight was 320.2 kg (carcass yield - 57.2%); boneless beef - 266.7 kg (84.9% of chilled carcass). 58.7% (156.6 kg) of the meat was lean; 30.6% attributed to fatty beef. The moisture content of the combined minced meat was 70.9%; protein - 20.4%; fat - 7.7%; ash - 1.0%. Meat safety was determined from the average sample of minced meat. In terms of chemical composition and safety, beef meets the requirements of the interstate standard GOST 32855-2014 for raw meat. Thus, the maintenance and feeding of young cattle on the foothill pastures of the North Caucasus, used later for meat, provides moderate-intensive and extensive feeding with an insignificant inclusion of concentrates in the diet.


Vsyo o myase ◽  
2020 ◽  
pp. 46-49
Author(s):  
Dabaev O.D. ◽  
◽  
Khamiruev T.N. ◽  
Aslaliev A.D. ◽  
◽  
...  

The results of the study of the meat productivity of crossbred young animals obtained from the crossing of ewes of the Aginsk breed with the producers of the Kazakh breed of the Bayys type in a comparative aspect with purebred analogs of the original breed at the age of 6 and 18 months are presented. It has been established that crossbred individuals have a significant advantage in terms of slaughter qualities in the analyzed age periods. So, for the pre-slaughter live weight at the age of 6 months. the superiority was 3.0 %, at the age of 18 months. – 6.2 %, for slaughter weight and slaughter yield – 3.4 and 0.2 %; 7.8 and 0.8 % respectively. Lamb obtained from the slaughter of young sheep of the control and experimental groups at the age of 6 months, depending on the weight of carcasses, corresponded to the first class. The chemical composition of the meat indicates the higher calorie content of meat obtained from crossbred young animals. At the same time, the ratio of protein and fat was optimal when slaughtering experimental young animals at the age of 6 months. Tasting evaluation of broth and boiled meat did not reveal significant differences in organoleptic indicators of control and experimental samples.


Author(s):  
Х.Х. Тагиров ◽  
Н.Ю. Николаева ◽  
Р.Р. ИШБЕРДИНА

Изучены особенности роста и продуктивные качества бычков и кастратов герефордской породы, выращенных в условиях Томской области. Исследования проводили на 2 группах животных от 15- до 24-месячного возраста. В I группу входили бычки, во II — кастраты. Средняя живая масса бычков-кастратов в начале и в конце периода исследований превосходила массу бычков I группы. Наибольший прирост живой массы с 15-месячного возраста наблюдался у бычков I группы, начиная с 20 мес, кастрированные животные показали лучшие результаты. Абсолютный ежемесячный прирост живой массы был выше в 1,5—2 раза у бычков I группы до 19 мес, после чего наблюдалась обратная тенденция. За весь период исследований от бычков I группы получен прирост живой массы в среднем 202,7 кг. Бычки-кастраты за этот же период имели прирост 210,5 кг. По показателям мясной продуктивности молодняк I группы отличался наибольшей предубойной массой, массой парной туши и убойной массой на 59,7, 20 и 10,1 кг соответственно. Бычки-кастраты превосходили сверстников I группы по содержанию внутреннего жира (на 10 кг), выходу туши (на 2,4%) и убойному выходу (на 4,7%). При изучении морфологического состава туш установлено, что бычки I группы характеризуются максимальной массой охлажденной туши. Однако по выходу мышечной ткани доминировали бычки-кастраты: содержание мякоти у них было выше на 2,2%, а индекс мясности больше на 0,4 ед. The peculiarities of growth and productive qualities of Hereford calves and castrates raised in the Tomsk region were studied. The studies were carried out on 2 groups of animals from 15 to 24 months of age. Group I consisted of gobies, and group II consisted of castrati. The average live weight of castrate bulls at the beginning and at the end of the study period exceeded the weight of group I bulls. The greatest increase in live weight from the age of 15 months was observed in group I calves, starting from 20 months the neutered animals showed the best results. The absolute monthly increase in live weight was 1.5—2 times higher in group I bulls up to 19 months, after which the opposite trend was observed. Over the entire period of research, an average live weight gain of 202.7 kg was obtained from group I calves. Castrated gobies had an increase of 210.5 kg over the same period. According to the indicators of meat productivity, the young animals of group I had the highest pre—slaughter weight, the weight of a paired carcass and the slaughter weight by 59.7, 20 and 10.1 kg, respectively. Castrate bulls outperformed their peers in group I in terms of internal fat content (by 10 kg), carcass yield (by 2.4%), and slaughter yield (by 4.7%). When studying the morphological composition of carcasses, it was found that group I gobies are characterized by the maximum mass of the cooled carcass. However, the output of muscle tissue was dominated by castrate gobies: their pulp content was higher by 2.2%, and the meat index was higher by 0.4 units.


2020 ◽  
pp. 32-34
Author(s):  
Oleg Igrisovich Biryukov ◽  
Oksana Petrovna Biryukova

The results of the application of the prebiotic preparation “Kormomiks MOS” for the raising of rams of the Stavropol breed up to 8 months of age are presented. Its positive effect on the gain in live weight and meat productivity has been established. In terms of live weight, the superiority of the animals of the experimental groups over the control was 2.56 kg, or 7.5% (P> 0.999). Experienced animals had the best meat qualities. For pre-slaughter weight, the excess was from 5.2%, for the mass of chilled carcasses - from 1.16 kg (8.3%).


2020 ◽  
Vol 14 (4) ◽  
pp. 99-103
Author(s):  
V. I. Kolesnikov

The purpose of the research is studying the efficacy of Eprimek (Eprinomectin) against gastrointestinal nematodes in sheep.Materials and methods. A commercial experiment to study the antiparasitic efficacy of Eprimek was carried out in June 2020 on 300 lambs of the North Caucasian breed in a private flock of Filimonovskaya Village, Izobilnensky District, the Stavropol Territory, which were divided into two groups. The experimental group of lambs (290 animals) was injected Eprimek subcutaneously at the earset at a dose of 1 ml/50 kg of live weight (10 mg of Eprinomectin in 1 ml), and 10 lambs were not treated; they were used as control. We collected feces from the lambs of the experimental and control groups before administration of the drugs and after 15 and 30 days. Fecal samples were examined by the flotation technique with a saturated solution of ammonium nitrate with counting nematode eggs in 1 g of feces. The results were processed statistically.Results and discussion. Eprimek showed a decrease in the number of excreted helminth eggs from 225.1±28.2 to 4.1±2.3 in production environment at a dose of 1 ml/50 kg of live weight, according to coprological studies on the 15th day after treatment in the experimental group of lambs. The efficacy was 98.2%, and 70% of the animals were free from the infection. The intensity of infection of the control lambs by gastrointestinal nematodes was 131–151 eggs per 1 g of feces at 100% prevalence.


Author(s):  
M. Grigoryev ◽  
N. Chernogradskaya

Animals imported to Yakutia from other regions fall into feeding and housing conditions that differ from their usual agro-climatic conditions, which causes the problem of their adaptation. Yakutia is one of the areas where the feed of its own production has a lack of basic minerals, which affects the health and productivity of animals, which has an additional negative influence on the adaptation process of imported cattle. In order to replenish macro- and microelements in the body, it is necessary to introduce various local mineral feed additives, premixes, and use mineral salts into the ration. Under the conditions of Central Yakutia the influence of local mineral feed additives (zeolite of the Khonguruu Deposit in the Suntar district and sapropels of local lakes) containing macro- and microelements that increase the meat productivity of steers has been studied. As a result of the research the influence of local mineral feed additives on meat productivity and physiological condition of Hereford steers has been established. Influence of zeolite and sapropel in a complex with mineral salts on digestibility of nutrients of the ration and use of nitrogen, calcium and phosphorus by experimental animals has been defined. The influence of feed additives on the quality of meat products has been studied. The results have shown that the use of local mineral feed additives in the composition of ration of steers during the fattening period at a dose of 0,7 g zeolite per 1 kg of live weight of the animal and 200 g of sapropel in combination with 10 g of mineral salts contributed to the gain in live weight, carcass weight, carcass yield, yield of edible parts, and economic efficiency of fattening. For the entire period of the experiment the gain in live weight in groups was: in control group 2222,9 kg, in the 1st experimental group 2396,2 kg, in the 2nd experimental group 2471,1 kg. The total economic effect for the 1st experimental group for the period of experiment amounted to 44,3 thousand Rubles, for the 2nd experimental group 78,0 thousand Rubles or per 1 head/day 14,06 and 24,76 Rubles, respectively.


Sign in / Sign up

Export Citation Format

Share Document