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The aim of this study was to estimate hot carcass weight (HCW) and to determine the accuracyof predicting body weight in young bulls and steers, based on live animal measurements performedat 6 and 12 months of age and before slaughter with the use of Support Vector Machines (SVMs).Among the four analyzed kernel functions, a radial basis function (RBF) in the following form:K(u,v) = exp(-γ·||u–v||2),γ>0,...
The objective of this study was to determine the effect of increased concentration of BHBA in the blood in high-yielding cows on fatty acid concentrations in milk fat in first month of lactation. The milk fatty acid profiles of cows classified as healthy (n = 33) or as cows with increased concentration of BHBA (iBHBA) (n = 9) based on a blood plasma β-hydroxybutyrate threshold concentration of 1.2...
Wolce, w porównaniu z buhajkami, wolniej przyrastają i gorzej wykorzystują pasze, ale ich mięso zawiera więcej tłuszczu śródmięśniowego, jest jaśniejsze, bardziej kruche i charakteryzuje się większą wodochłonnością. Celem podjętych badań było określenie wpływu intensywności opasu oraz wieku zwierząt w momencie uboju na wartość rzeźną wolców mieszańców mięsnych uzyskanych z krzyżowania krów rasy polskiej...
The objective of this study was to determine the effect of parity on the fatty acid profile of milk from 42 high-yielding cows, including 15 primiparous cows, 15 cows in their second lactation and 12 cows in their third lactation. Milk yield was evaluated and milk samples (462 in total) were collected between lactation days 6 and 60, at five-day intervals. The concentrations of 43 fatty acids were...
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