The objective of this study was to determine the effects of a homolactic acid inoculant on ensiling characteristics and nutritive value of high dry matter (DM) alfalfa. The ensiling characteristics were determined by ensiling inoculated and untreated alfalfa haylage in mini-silos for 0, 2, 4, 8, 16 and 45 days. Two lactating cows fitted with ruminal fistulas were used to determine ruminal degra...

Introduction Return of organic materials such as crop residues, catch crops and green manures has a bearing influence on carbon (C) and nitrogen (N) turnover in agricultural soils. In recent works, Mueller et al. (1998), Henriksen & Breland (1999), and Trinsoutrot et al. (2000) found that results of stepwise chemical digestion (Goering and Van Soest 1970) constituted an adequate basis for descr...

Microbial protein synthesis in the rumen would be optimized when dietary carbohydrates and proteins have synchronized rates and extent of degradation. The aim of this study was to evaluate the effect of varying ruminal degradation rate of energy and nitrogen sources on intake, nitrogen balance, microbial protein yield, and kinetics of nutrients in the rumen of growing kids. Eight Boer goats (38...

BACKGROUND Despite the recognition that feedstock composition influences biomass conversion efficiency, limited information exists as to how bioenergy crops with reduced recalcitrance can improve the economics and sustainability of cellulosic fuel conversion platforms. We have compared the bioenergy potential-estimated as total glucose productivity per hectare (TGP)-of maize cultivars contrasti...

Two in vitro experiments were performed to identify promising exogenous fibrolytic enzyme products (EFE) and optimum dose rates (DR) for improving the degradation of alfalfa hay and corn silage. The relationship between enzymatic activity and fermentation responses was examined to identify optimum formulations. In experiment 1, 5 EFE containing mainly endoglucanase and xylanase activities, with...

Six sheep were fed twice a day on a different ratio of sheep pellets and hay (20:80 (diet 1), 40:60 (diet 2) and 80:20 (diet 3)) in a replicated Latin square design to study the effect of the host diet on the bacterial concentration of ruminal liquor and in vitro gas production degradability parameters of cellulose, glucose and hay. Bacterial DM, bacterial absorbance and the volume of gas produ...

Seven cannulated (rumen and duodenal) Angus x Hereford steers (264 +/- 8 kg BW) consuming low-quality forage (5% CP; 61% NDF; 31% ADF) were used to determine the influence of CP degradability and supplementation frequency (SF) on DMI and nutrient digestion. Treatments included an unsupplemented control and degradable intake protein (DIP) or undegradable intake protein (UIP) provided daily, ever...

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...

this study was conducted to determine the chemical composition, degradability characteristics gas production as well as the phenomenon of the persian clover (trifolium resopinatum) when at some growth stages of the were early budding to full flowering, namely: early budding (i), full budding (ii), early flowering (iii) as well as full flowering stage (iv). four fistulated mehraban male sheep we...

this study was conducted to investigate the effects of doses of 25, 50 and 75 kgy of gamma ray (gr) and electron beam (eb) ionizing radiations on ruminal disappearance of amino acids (aas) and protein subunits of canola meal (cm). the nylon bag technique was used for degradability trial. three ruminally fistulated taleshi bulls were used for this aim. the disappearance trends of protein subunit...