MEAT QUALITY OF BLACK AND WHITE BREED YOUNG CATTLE AND HYBRIDS WITH LIMOUSINE
Abstract and keywords
Abstract (English):
Cel' issledovaniya – povyshenie proizvodstva govyadiny razlichnymi metodami skreschivaniya. Provedena sravnitel'naya ocenka myasnoy produktivnosti bychkov i kastratov cherno-pestroy porody i ee polukrovnyh pomesey s limuzinami. Dlya provedeniya issledovaniy podbiralis' polnovozrastnye (po tret'emu-chetvertomu otelu) korovy cherno-pestroy porody. Matochnoe pogolov'e soglasno sheme opyta osemenyali spermoy vysokoklassnyh bykov limuzinskoy porody. Iz poluchennogo priploda bylo sformirovano 4 gruppy bychkov po 15 golov v kazhdoy. Bychkov III i IV grupp v vozraste 2 mesyacev kastrirovali. V pervuyu gruppu bychkov i tret'yu gruppu kastratov vhodili chi-stoporodnye zhivotnye cherno-pestroy porody, a vo vtoruyu i chetvertuyu – sootvetstvenno polukrovnye bychki i kastraty po limuzinskoy porode. Naibol'shey intensivnost'yu rosta otlichalis' bychki opytnyh grupp, tak sred-nesutochnyy prirost ot rozhdeniya do 21-mesyachnogo vozrasta byl poluchen u pomesnyh bychkov – 887 g, kotoryy pre-vysil sootvetstvuyuschie pokazateli cherno-pestryh bychkov na 45 g (5,3%; R<0,05), chistoporodnyh i pomesnyh ka-stratov sootvetstvenno na 82 g (10,2%; R<0,001) i 39 g (4,6%; R>0,05). V 15- , 18- i 21-mesyachnom vozraste ot mo-lodnyakov vseh grupp polucheny tyazhelovesnye tushi s blagopriyatnym sootnosheniem suhogo veschestva, belka, zhira v myakotnoy chasti i vysokoy energeticheskoy cennost'yu. Pri etom pomesi po ryadu kolichestvennyh i kachestvennyh pokazateley myasnoy produktivnosti prevoshodili chistoporodnyh bychkov i kastratov. Ustanovleno, chto pomesnye zhivotnye po ryadu kolichestvennyh i kachestvennyh pokazateley myasnoy produktivnosti prevoshodili chisto-porodnyh sverstnikov, chto svidetel'stvuet o dostatochno vazhnom rezerve v proizvodstve govyadiny.

Keywords:
produktivnost', cherno-pestraya, limuzinskaya, pomesi, bychki, kastraty
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References

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