Fattening Performance of Bulls of three Breeds Fattened Semi-Intensively in the Kostanay Region

Aitzhanova, Indira; Naimanov, Doskali K.; Mici&nacute;ski, Bartosz; Dzik, Sara; Mici&nacute;ski, Jan

doi:10.3844/ojbsci.2017.157.165

Cited by 1 publication

(1 citation statement)

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“…Two pasture cycles are usually performed. The average daily weight gain is approximately 800 g. Animals are slaughtered at the age of 15 or 18 months when they reach a body weight of about 550-600 kg (Coleman et al, 2016;Aitzhanova et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Comparative Assessment of Meat Qualities of Purebred and Crossbred Kalmyk Bulls

Aitzhanova¹,

Shaikamal²,

Seleuova³

et al. 2022

OnLine Journal of Biological Sciences

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The purpose of this study was to review the meat qualities of Kalmyk cattle by the method of lifetime evaluation of the meat forms of purebred and crossbred bulls by studying growth and development, as well as determining the thickness of subcutaneous fat, the loin eye area and the meat marbling. Throughout the experiment (from 6 to 12 months), Kalmyk bulls were characterized by significantly (p≤0.01) higher average daily growth than crossbred bulls obtained from Angus and Kalmyk breeds (750 g vs. 670 g). The average daily increase in purebred Kalmyk bulls reached 750 g and was significantly higher (p<0.05) than in bulls obtained from crossbreeds of Kazakh white-headed and Kalmyk breeds. Despite such indicators as the thickness of subcutaneous fat, the area of the loin eye and meat marbling among the studied groups for the evaluation of meat qualities in points, purebred bulls had higher indicators for the loin eye area and meat marbling and lower feed costs per 1 kg of live weight gain. They significantly surpassed their peers, the Kazakh white-headed and Aberdeen-Angus breeds (at p<0.001) in terms of the thickness of subcutaneous fat and meat marbling. The young animals of this group had lower feed costs per 1 kg of growth, by 1.1 feed units, or 14%, compared with the peers from the Kazakh whiteheaded x Kalmyk group and by 3.4 feed units, or 44%, compared with the Angus x Kalmyk group. This is since the cattle of this breed are characterized by endurance, unpretentiousness to feed, high adaptive plasticity, good weight gain per quantity of feed both during fattening and graziery and early meat maturity, compared with the Angus and Kazakh white-headed breeds.

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Section: Introductionmentioning

confidence: 99%