Gorlov IF, Nikolaev DV, Kaydulina AA, Grishin VS, Mosolova DA
The efficiency of crossbreeding of Red Steppe cows and bulls of the Kazakh white-headed breed
for meat productivity increase and beef quality improvement
Ivan FGorlov1,2, Dmitry VNikolaev1, Aizhan’ AKaydulina1, Grishin V Sergeevich 1, Daria AMosolova 3
1Povolzhsky Research Institute of Production and Processing of Meat and Dairy Products (Volgograd, Russia)
2Volgograd State Technical University (Volgograd, Russia)
3Russian University of Economics named after GV Plekhanov (Moscow, Russia)
Summary. The article presents the results of a study of meat productivity of purebred bulls of the Kazakh white-headed breed in comparison with the Red Steppe and their crosses with ½ and ¾ blood according to the Kazakh white-headed breed. The studies were carried out in the Breeding farm kolkhoz named after Lenin, Surovikinsky district of Volgograd region. For this purpose, four groups of experimental 10-month bulls were formed: the first (experimental I) group - purebred animals of the Kazakh white-headed breed; the second (II experimental) group – purebred animals of the Red Steppe breed; the third (experimental group III) – cross-bred animals with ½ blood, obtained by crossing Red Steppe cows and bulls of the Kazakh white-headed breed; the fourth (experimental IV) group – crosses of animals with ¼ blood, obtained by crossing cows ½ blood and bulls of the Kazakh white-headed breed. The experimental animals were kept in similar conditions in separate rooms, separately for groups, with free access to walking yards. Our experimental studies have shown that purebred Kazakh white-headed animals after years of selection aimed at improving beef productivity and quality have a higher genetic predisposition to produce high-quality beef in comparison with cross-bred analogues. At the end of the experiment, larger animals were obtained from crossed bulls in comparison with purebred ones.
Key words: bulls, crosses, crossbreeding, meat productivity, live weight, slaughter indicators, morphological indicators.
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Gorlov Ivan Fedorovich, Dr. Sci. (Agr.), Academician of Russian Academy of Sciences, Scientific Advisor, Povolzhsky Research Institute of Production and Processing of Meat and Dairy Products, 400131, Volgograd, Russia, 6 Rokossovsky St., tel.: (8442)32-10-48; e-mail: firstname.lastname@example.org; Head of the Chamber of Commerce and Industry, Volgograd State Technical University, 400005, Volgograd, Russia, 28 Avenue named after VI. Lenin, tel.: (8442)24-84-47; e-mail: email@example.com
Nikolaev Dmitry Vladimirovich, Dr. Sci. (Agr.), Leading Researcher at the Integrated Analytical Laboratory, Povolzhsky Research Institute of Production and Processing of Meat and Dairy Products, 400131, Volgograd, Russia, 6 Rokossovsky St., tel.: (8442)32-10-48; e-mail: firstname.lastname@example.org
Kaydulina Aizhan’ Andreevna, Cand. Sci. (Agr.), Senior Researcher, Department of Livestock Production, 400131, Volgograd, Russia, 6 Rokossovsky St., tel.: (8442)32-10-48; e-mail: email@example.com
Grishin Vladimir Sergeevich, Cand. Sci. (Agr.), Senior Researcher at the Integrated Analytical Laboratory, Povolzhsky Research Institute of Production and Processing of Meat and Dairy Products, 400131, Volgograd, Russia, 6 Rokossovsky St., tel.: (8442)32-10-48; e-mail: firstname.lastname@example.org
Mosolova Daria Alexandrovna, student, Russian University of Economics named after GV Plekhanov, 117997, Moscow, Russia, 36 Stremyanny lane
Received: 22 November 2019; Accepted: 16 December 2019;Published: 31 December 2019