Evaluation of performance and metabolism of dairy cows fed pea seeds (Pisum sativum) with different anti-nutritional content

摘要

The aim of this study is to determine the effect produced by selected pea cultivars with different anti-nutritionalcontent on dairy cows’ metabolism. In the current ninety-day present, 32 dairy cows were divided into four groups(Z, G, GU and C). Three experimental groups (Z, G and GU) were fed a production mixture consisting of 25% peaseeds and the following: (Z – Zekon cultivar with low anti-nutritional content; G - Gotik cultivar with high antinutritionalcontent; and GU – Gotik cultivar whose anti-nutritional content was reduced technologically). The controlgroup was fed the production mixture with a higher proportion of extracted soybean meal and grain meal. Feedingrations were balanced to have an analogical composition of crude protein and energy. Feeding the pea supplementdid not affect energy metabolism of the dairy cows. As for nitrogen metabolism, group Z showed higherconcentrations of ammonia in rumen fluid and urea in blood compared to groups GU and C. No animal from theexperimental groups showed reduced intake of feed. An insignificantly lower performance was noted (daily milkyield, protein production and lactose production) in group G. Overall, better results were observed in group Z. On thebasis of the current study, peas can be used as an alternative source of proteins and energy in the diet of dairy cattle.