The supplementation of livestock feed with animal protein is a present cause for public concern, and plant protein shortages have become increasingly prominent in China. This conflict may be resolved by fully utilizing currently available sources of plant protein. We estimated the rumen degradability and the small intestinal digestibility of the @entity3534 (AA) in rapeseed meal (RSM), @entity1460 meal (SBM), sunflower seed meal (SFM) and @entity5420 meal (SSM) using the mobile nylon bag method to determine the absorbable AA content of these protein supplements as a guide towards dietary formulations for the dairy industry. Overall, this study aimed to utilize protein supplements effectively to guide dietary formulations to increase milk yield and save plant protein resources. To this end, we studied four @entity291 with a permanent rumen @entity292 and @entity292 in a 4*4 Latin square experimental design. The results showed that the total small intestine absorbable @entity3534 and small intestine absorbable essential @entity3534 were higher in the SBM (26.34% and 13.11% @entity62 [ @entity62 ], respectively) than in the SFM (13.97% and 6.89% @entity62 , respectively). The small intestine absorbable Lys contents of the SFM, SSM, RSM and SBM were 0.86%, 0.88%, 1.43%, and 2.12% ( @entity62 basis), respectively, and the absorbable Met contents of these meals were 0.28%, 1.03%, 0.52%, and 0.47% ( @entity62 basis), respectively. Among the examined food sources, the milk protein score of the SBM (0.181) was highest followed by those of the RSM (0.136), SSM (0.108) and SFM (0.106). The absorbable @entity3689 contents of the protein supplements accurately reflected protein availability, which is an important indicator of the balance of feed formulation. Therefore, a database detailing the absorbable AA should be established.

Rumen Degradability and Small Intestinal Digestibility of the XXXX in Four Protein Supplements.

@entity3534 :: ('MESH:D000596', 'Chemical') :: ['amino acids'] @entity292 :: ('MESH:D005402', 'Disease') :: ['duodenal T-shape fistula', 'fistula'] @entity1460 :: ('3847', 'Species') :: ['soybean'] @entity62 :: ('MESH:D056784', 'Disease') :: ['DM', 'dry matter'] @entity3689 :: ('D000596', 'Chemical') :: ['amino acid'] @entity291 :: ('9913', 'Species') :: ['cows'] @entity5420 :: ('4182', 'Species') :: ['sesame']
@entity3534 :: (MESH:D000596,Chemical) :: ['Amino Acids']
