Open AccessEffects of accompanying use of heat treated corn grain and whole soybeans in concentrates on weaned calves performances
Author(s) -
Bojan Stojanović,
G. Grubić,
N. Djordjević,
M. Adamović,
Mihailo Radivojević
Publication year - 2008
Publication title -
biotechnology in animal husbandry/biotechnology in animal husbandry
Language(s) - English
Resource type - Journals
eISSN - 2217-7140
pISSN - 1450-9156
DOI - 10.2298/bah0804029s
Subject(s) - feed conversion ratio , nutrient , agronomy , zoology , soybean meal , chemistry , meal , food science , biology , body weight , endocrinology , raw material , organic chemistry
The objective of this experiment was to evaluate the effects of simultaneous using heat-treated corn grain as basic energy source and heat treated whole soybeans as protein source, in diet for calves 60-120 days old. The main predicted effects were improved energy and nutrients utilization efficiency and production performances of calves at this age. Thirty-six weaned Holstein calves were used, there were three treatments using different concentrates, formulated as: concentrate with micronized corn grain and extruded whole soybeans (KTT); concentrate with non-treated corn grain and soybean meal (KTN); concentrate with non-treated corn grain and extruded whole soybeans (KS). The marked effects of simultaneous use of heat-treated corn grain and whole soybeans were determined for feed efficiency (feed conversion ratio, FCR was 6,2% higher for calves on KTT than on KTN and 4,3% higher than on KS treatment). Efficiency of energy utilization (MJ ME/kg of gain) was better for calves on diet with KTT concentrate (5.8 % and 5.3% lower efficiency of metabolic energy utilization for KTN and KS treatment respectively). Consumed crude protein was better utilized for growth by calves on KTT diets, than other two treatments (10.8 % more CP/kg of growth for KTN, and 7.5% more for KS).