Temperamento, produtividade e qualidade láctea em bovinos leiteiros

Abstract

The study of temperament has been important in animal husbandry, because it allows categorize the animal according the reactivity been a strong tool in the production system. The aim of present study was evaluate the effect of temperament of milk cow can influence qually-quantitative characteristics of milk. The mean concentration of dry matter, density, pH, fat, acid of Dornic and somatic cell coun where not affected, whith medium values of 2.2±0.5%, 1.029±0.0009, 6.72±0.12, 2.2±0.04g/mL, 15.7±1,54oD, 9,4±3,3x105 respectively. The reactivity of animal affected significantly the concentration of protein. The most reactive produced an average of 7.58 meanwhile the nonreactive cows produced an average of 7.32. The mean protein concentration of reactive cows was 2.32. Where in nonreactive cows was 2.05. Based on these results it is concluded that the animals considered more reactive greater volume of milk produced and higher levels of protein.