Comparative analysis of nutritional value of different protein feed materials
The study was conducted to compare and analyze the nutritional value of different protein feed materials.Ten kinds of protein feeds(soybean meal,palm meal,cottonseed meal,monosodium glutamate meal,sesame cake meal,sunflower meal,distillers dried grains with solubles,peony seed meal,beer grains,and soybean residue)were collected from beef cattle farms with three replicates for each feed.The carbohydrate composition,protein composition,amino acid composition,and predicted em-value indexes were determined and analyzed.The results showed that the CHO content of soybean residue was the highest(73.78%),followed by peony seed meal(66.76%)and palm meal(65.89%).The NSC content of monosodium glutamate residue and soybean meal was higher,while the CC content was lower.The CP content of monosodium glutamate residue,soybean meal,sesame cake,and cottonseed meal was higher than 50%,significantly higher than other materials(P<0.05).The PA content and PB1 content of monosodium glutamate residue and peony seed meal were significantly higher than other materials(P<0.05).The EAA and Lys contentrations of soybean meal,monosodium glutamate residue,and cottonseed meal were higher than other materials(P<0.05).The TDN content of corn alcohol grains,monosodium glutamate residue,peony seed meal,and sesame cake meal was higher than 80%.NEg and NEL showed the same trend as TDN.The study indicates that the nutritional content of different protein feed materials is significantly different.Considering the protein components and energy value,the nutritional value of monosodium glutamate residue,cottonseed meal,and sesame cake are equivalent to that of soybean meal,and they have obvious advantages to replacing soybean meal in production.
protein feednutritional valuetotal digestible nutrientsamino acids
万方数据
维普
