Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Shchukina Irina Vladimirovna

Scholastic degree


Academic rank

associated professor

Honorary rank

Organization, job position

Kuban State Agrarian University
   

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Articles count: 4

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335 kb

ECONOMIC-BIOLOGICAL FEATURES AND EXTERIOR MAINTENANCE OF YOUNG CATTLE IN THE KRASNODAR REGION

abstract 1051501064 issue 105 pp. 1046 – 1074 30.01.2015 ru 587
In the Krasnodar region there is a unique gene pool of animals both for dairy and meat. To assess the heifers the authors formed five experimental groups of animals, the most common species in the region. The authors studied the main economic, biological and exterior features: live weight, measurements, assessment of the exterior. The studies found that among intensive species with the largest body weight throughout the growing period, in 8-month old Charolais heifers superior Simmental ones at 17.4 kg. In one year old Simmental heifers were 9.2 kg (R˂0,05) ahead of Charolais and in 15 months – 10 kg (R˂0,05). Over the entire period of growth the highest rates of relative growth rates of heifers were obtained by red steppe breed type named Kuban, which had an advantage over the Aberdeen-Angus – 19.1%, Charolais – 5.6%, Hereford – 6.2%, and the difference between them and Simmental weren’t fixed. When growing, the animals become less tall, more stretched, wide and massive. We have noted that during the period of cultivation we had increased indices: stretch (9% – Red Steppe, 13.8% – Charolais, 16.1% – Hereford); chest (5.4% Aberdeen Angus). This reduces the index of long legs of red steppe – 5.6%, 10.9% for Charolais. The study of linear growth of animals confirms that the animal meat breeds of live weight increase was due to the extension of the body and increase the width of the pelvis and chest. Some different facts were observed in heifers of Red Steppe breed. For them, the most characteristic increase in the width of the chest was 1.44 times, as well as increasing the depth of the chest and chest girth behind the shoulders
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MORPHOLOGICAL AND BIOCHEMICAL CHARACTERISTICS OF THE BEEF OF YOUNG SPECIAL MEAT AND HOLSTAIN SPECIES GROWN IN THE SOUTH OF RUSSIA

abstract 1211607141 issue 121 pp. 2288 – 2330 30.09.2016 ru 170
The author has examined peculiarities of meat productivity of animals of the most common breeds: Charolais, Simmental, Aberdeen Angus, Hereford, Kuban type of Red Steppe. As a result of the slaughter carried out for younger group achieved 15 months age, the Charolais breed bulls exceeded peers of Kuban type on slaughter weight to 60.9 kg (20.9 %), Aberdeen Angus – 53.8 kg (18.5 %), Hereford and Simmental respectively – to 35.1 and 24.8 kg (8,5-12,0 %). By the age of 18 months their superiority increased respectively by 56.9; 57.5; 55.8 and 29.9 kg (16.8; 16.9; 16.5 and 8.82%). Halves of bodies of the Kuban breed (considering the specific type of boneless beef output) aged 15 months gave way to all the groups: Charolais and Angus – by 1.1- 1.5%, Simmental and Hereford – by 0.4-0.6%. The yield of premium beef exceeds the standards in all genotypes: Kuban – by 9.5%, beef breeds – by 11.2% (Charolais) and 19% (Simmental). The balance beetween dry matter and moisture is in the optimal range (0.43: 1-0,73: 1). At 15 months of age, in the number of dry matter, Charolais bulls outnumbered Aberdeen-Angus and Red steppe at 5.1-5.2%, Simmental and Hereford - on 3,0-4,9%. With age, in the meat of calves of beef breeds the level of fat increased, for example, in Hereford and Simmental 0.3-0.5%, Aberdeen Angus and Simmental – 0.7-0.8%. In the middle of a sample of ground beef of carcasses of the calves of Charolais breed at the age of 18 months it contained more protein than in the meat of the calves of Red steppe (1.2%, Hereford (1.1%), Angus (1.4%), Simmental (1,3%). All the meat of the carcasses of the calves of specialized beef breeds was of high quality and diet: one part of the protein had 0.59 parts of fat (Aberdeen Angus) and 0.45 parts (Hereford)
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THE INDICES OF REPRODUCTION IN THE HERD OF MILK CATTLE IN “KUBAN” AGRICULTURAL HOLDING

abstract 1221608078 issue 122 pp. 1125 – 1162 31.10.2016 ru 200
The article contains complex research results dedicated of reproduction the cattle of the animal breeding industry in the agricultural holding called “Kuban”. Key indicators characterizing reproductive function at cows were set; they were estimated in terms of the plans of the economy in the milk cattle breeding industry. The reduced values of the birth-rate of calves were revealed on 100 cows and in the term of the production use of cows, their main reasons were set. The performed calculations prove the possibility of increasing the profitability of milk production
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USING THE BIOLOGICAL RESOURCES OF ANIMALS IN RESOURCE-SAVING TECHNOLOGIES IN CATTLE FARM WORK SITES

abstract 1211607142 issue 121 pp. 2331 – 2368 30.09.2016 ru 152
A fundamental element of the technology is the use of beef cattle in the economic purposes of biological resources of animals. In the development of modern technologies there is a lack of focusing on one of the main features of cattle – its own perception of the environment, that is panoramic (binocular) vision. In the modern cattle breeding we focuse on the development of a variety of exterior signs. However, one of the indicators that affect the behavioral responses of animals (the degree of development of the muzzle and the forehead of the animal, the shape of the head) does not have due importance. The author has conducted its degree of development studies in bulls and cows of different breeds. Along the length of the head, meat breeds (Hereford, Aberdeen Angus, Simmental, Charolais) gave way to Red Steppe 14.9; 15.5; 5.5 and 5.0 cm (27,5; 28,6; 10,1 and 9,2%, P
.