Five ruminally and duodenally cannulated steers (491 +/- 21 kg BW) were used in an incomplete 5 x 4 Latin square with four 24-d periods to determine the influence of supplemental nonprotein N (NPN) source and supplementation frequency (SF) on the dynamics of ruminal fermentation in steers consuming low-quality grass straw (4% CP). Treatments (TRT) included an unsupplemented control (CON) and a ...

This study was carried out to determine the effects of supplementing different levels (0, 0.5 and 1% of buffered rumen fluid) of methanolic extract of pomegranate peel, on rumen fermentation kinetics of four oil seed meals (soybean meal, cotton seed meal, rapeseed meal and sunflower seed meal), using in vitro gas production technique. The samples were incubated in syringes containing rumen liqu...

Isoenergetic maize silage diets, fed at maintenance to 24 suckling cows (Exp. 1) and to 3 (Exp. 2) or 4 (Exp. 3) rumen fistulated sheep, were compared with a urea and controlled release NPN diet (Exps. 1 and 2) and with a protein-N supplemented diet (Exp. 3). Supplementation increased blood urea concentrations (44.7 +/- 22.3 vs. 97.6 +/- 23.7 mg urea-N x L(-1)) (Exp. 1) and renal urea excretion...

The remnants of pesticides in livestock feeds have been increased by excessive using of these pesticides so as to meet extreme demands for more feeds. Finding a new strategy for reducing pesticides negative effects is absolutely necessary. Therefore, evaluation of the effects of sodium bentonite on blood parameters, feed digestibility and rumen fermentation parameters in sheep fed diets contami...

four in vitro experiments (exp.) were conducted to evaluate lavender essential oil (leo) effects at 0 (control), 250 (low dose), 500 (medium dose), 750 and 1000 µl per l(high doses) of incubation medium on rumen gas production kinetics (exp.1), ruminal digestibility and fermentation (exp.2), methane production (exp.3) and rumen acidosis (exp.4). the asymptote of gas production (a) increased qua...

The aim of the study was to evaluate effect crude protein (CP) levels in concentrate and Sesbania grandiflora pod meal (SG) supplementation on feed intake, rumen fermentation, methane (CH4) mitigation Thai purebred beef cattle. Four cattle with 100 ± 5.0 kg body weight were used this study. A 2 × factorial experiment a 4 Latin square design conducted, which factor CP 14% 16% dry matter (DM) B s...

The objective of the present study was to examine potential utilization yeast strain Pichia guilliermondii (Levica 27) on ruminal fermentation corn stover. Two in vitro treatments were evaluated: (A) filtered rumen liquid + powdered stover yeast-free culture medium and (B) inoculated with yeast. Samples collected at 0, 6, 12, 24 h examined for effects pH, ammonia nitrogen (NH3-N), fiber digesti...

The objective of this study was to evaluate the effects inclusion País grape marc (GM) in high (HF) and low forage (LF) ruminant diets on rumen methane (CH4) production fermentation parameters an vitro (batch) culture. Experimental treatments replaced for GM at increasing concentrations (0, 10%, 20% dry matter [DM]) incubation substrates. Gas (GP) CH4 were measured 6, 12 24 h DM disappearance, ...

The present study was aimed at understanding a shift in rumen microbiome of buffaloes fed various levels of total digestible nutrients. To understand the process, the metagenomics of rumen microbes, in vivo and in vitro rumen fermentation studies were carried out. Three rumen fistulated adult male Murrah buffaloes were fed three isonitrogenous diets varying in total digestible nutrients (70, 85...