Evaluation of the Cornell Net Carbohydrate and Protein System for dairy cows fed pasture-based diets
作者： Barry Mc , Muller Ld , Penno Jw , Kolver Es
DOI:
关键词: Dairy cattle 、 Agronomy 、 Carbohydrate 、 Animal science 、 Condition score 、 Pasture based 、 Biology 、 Grazing 、 Pasture 、 Energy balance
摘要: This study evaluated the Cornell Net Carbohydrate and Protein System (CNCPS) for dairy cattle consuming pasture-based diets. Data was obtained from four grazing, indoor pasture feeding experiments (23 dietary treatments) with in N ew Zealand United States. ME requirements maintenance were adjusted to account grazing activity. The model gave a reasonably good prediction of changes condition score (R 2 =0.79, slope not significantly different 1), energy balance =0.76,
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