Digestion of soybean meal and canola meal protein and amino acids in the digestive tract of young ruminants.

  title={Digestion of soybean meal and canola meal protein and amino acids in the digestive tract of young ruminants.},
  author={G. R. Khorasani and Willem C. Sauer and Lech Ozimek and John J. Kennelly},
  journal={Journal of animal science},
  volume={68 10},
Eight male Holstein calves (body weight 68 +/- 5 kg; age 75 +/- 6 d), each with a permanent re-entrant pancreatic cannula and T-type ileal and duodenal cannulas, were used in a crossover design with four animals per group to determine amino acid kinetics and digestibilities in the digestive tract of calves fed soybean meal (SBM) and canola meal (CM) protein. The SBM and CM diets were fed twice daily at a level of 900 g at each feeding time (air-dry basis). With the exception of methionine… 

Nutrient digestibility and endogenous protein losses in the foregut and small intestine of weaned dairy calves fed calf starters with conventional or enzyme-treated soybean meal.

The results indicated that the inclusion of an ESBM improved the efficiency of ruminal microbial protein synthesis per digested kilogram of organic matter and CP, and increased CP and AA absorption in the small intestine despite a greater proportion of undigested dietary protein entering the duodenum.

Determination of the ruminal escape value and duodenal amino acid flow of rapeseed meal.

A 4 x 4 Latin square metabolism trial was conducted to evaluate protein escape potential, duodenal amino acid (AA) flows, and ruminal digestion effects of rapeseed meal (RSM) when fed with

Effects of canola meal inclusion rate in starter mixtures for Holstein heifer calves on dry matter intake, average daily gain, ruminal fermentation, plasma metabolites, and total-tract digestibility.

Canola meal can replace up to 60% of the CP provided from SBM without affecting starter intake and growth of calves, and ruminal ammonia and plasma urea concentrations were not affected by CM inclusion rate.

Canola meal or soybean meal as protein source and the effect of microencapsulated sodium butyrate supplementation in calf starter mixture. I. Performance, digestibility, and selected blood variables.

In conclusion, use of CM or SM as the main source of protein in starter mixture resulted in similar growth performance of bull and heifer calves; however, CM use in starter mixtures reduced starter intake, ADG, and G:F ratio at least at some points of rearing.

Effects of liquid protein feed on growth performance and ruminal metabolism of growing lambs fed low-quality forage and compared to conventional protein sources

Regardless of the positive effects of SBM on the performance and ruminal fermentation profile observed in the current study, the MSL diet could be a profitable protein source in comparison to CSM in growing lambs fed low-quality forage.

Effect of different dietary protein sources on digestibility and growth performance parameters in lambs

Background The aim of this study is a comparison between some different protein sources in sheep rations to identify the best protein source that achieves the highest production performance and the

Pancreatic mass, cellularity, and alpha-amylase and trypsin activity in feedlot steers fed diets differing in crude protein concentration.

It is indicated that increasing dietary CP concentration decreases pancreatic cell numbers and also increases the concentration and content of pancreatic alpha-amylase and trypsin activities, which may be important factors regulating digestive enzyme production in the pancreas of cattle.

Effect of heat-treated canola meal and glycerol inclusion on performance and gastrointestinal development of Holstein calves.

Heat treatment of CM may negatively affect calf growth and gastrointestinal tract development and glycerol inclusion may increase starter intake, ADG, ruminal fermentation, and intestinal development in calves when CM is used as a main source of protein in pelleted starter mixture.

Pancreatic mass, cellularity, and α-amylase and trypsin activity in feedlot steers fed increasing amounts of a high-moisture-corn based diet

Data indicate that total pancreatic α-amylase activity (kU pancreas-1) increased linearly (P = 0.04) with increasing DM intake, which suggests that the observed increase in tissue weight was due to increases in both cell size and number.

Short communication: A pilot study to describe duodenal and ileal flows of nutrients and to estimate small intestine endogenous protein losses in weaned calves.

It is indicated that there is potential to improve digestion and absorption of proteins through dietary strategies in young weaned calves and an optimal supply of CP and the inclusion of an enzyme-treated SBM improved the efficiency of microbial digestion and increased AA absorption.