Eight ruminally cannulated steers (BW = 753 +/- 48 kg) were used to evaluate in situ N, NDF, and DM degradation characteristics of by-product feeds and their application for beef cows consuming low-quality forage. Experimental feedstuffs included (DM basis) 1) extruded-expelled cottonseed meal (ECSM; 33% CP and 55% NDF), 2) extruded-expelled cottonseed meal with linters (ECSML; 25% CP and 41% N...

An experiment was conducted to determine the relationship between nitrogen intake and testicular urea content. Twenty ram lambs of fat-tailed Iranian native breed were used in this study. The mean (±SD) age and body weight of the lambs were 180±20 days and 36.7±6.3 kg, respectively. The lambs were divided in to five groups of equal size, and received a ration containing a single protein source;...

The effects of pre-treating different types of roughages with alkali on the efficacy of exogenous fibrolytic enzymes for improving their digestibility were studied in vitroin factorial arrangement 4 × 3 × 5 (enzyme, treatment and roughage types). Two fibrolytic feed enzymes novozyme (N) and celloclast (C) their combination (N+C) were evaluated for their potential to improve in vitrodegradation ...

BACKGROUND The continuing growth of the ethanol industry has generated large amounts of various distillers grains co-products. These are characterized by a wide variation in chemical composition and ruminal degradability. Therefore, their precise formulation in the ruminant diet requires the systematic evaluation of their degradation profiles in the rumen. METHODS Three distillers grains plus...

The study was conducted with the objective of evaluating nutrient content, fermentation characteristics, microbial counts, and ruminal degradability two mixtures Italian ryegrass (Lolium multiflorum Lam.) winter cereal silages. Two (mixture A: ryegrass, triticale, oats, wheat barley; mixture B: oats) were wilted ensiled in laboratory‐scale silos without additives. At end 90 d B silage had highe...

Objective: To perform in vitro and situ evaluation of a diet for dairy cattle at different rates fish oil soybean oil. Design /methodology /approach: Four treatments with (FO) (SO) were evaluated (Control: no added oil; 1: 2% FO; 2: FO 1.5% SO; 3: 3% SO). In digestibility degradability evaluated. Ammonia nitrogen, lactic acid, volatile fatty acids (VFAs), microbial protein determined. For the e...

The objective of this study was to evaluate the effects Saccharomyces cerevisiae as a probiotic on in situ ruminal DM, OM, CP and starch degradability values some energy protein sources commonly used ruminant nutrition. In study, degradation kinetics fractions dry matter, organic crude protein, 6 different feedstuffs (barley, wheat, corn, sunflower seed meal, cottonseed meal soybean meal) anima...

Seven birdsfoot trefoil (BFT) varieties (Lotus corniculatus) grown in Sweden, were harvested at the 50% ̄owering stage and analysed for tannins by the radial diffusion and HCl±butanol methods. The ̄avan-3-ol composition of different BFT tannins was determined by HPLC. Tannins were isolated and examined for their molecular weight distributions by HPLC gel permeation chromatography (GPC) and MALD...