A Meta-Analysis of Dietary Inhibitors for Reducing Methane Emissions via Modulating Rumen Microbiota in Ruminants.

Background: Rumen methane emissions (RMEs) significantly contribute to global greenhouse gas emissions, underscoring the essentials to identify effective inhibitors for RME mitigation. Despite various inhibitors shown potential in reducing RME by modulating rumen microbes, their impacts include considerable variations and inconsistency.

Objectives: We aimed to quantitatively assess the impacts of various methane inhibitors on RME, rumen microbial abundance, and fermentation in ruminants.

Performance responses of lactating Rahmani ewes fed diet supplemented with NRC-3 or .

Production of new types of probiotics for animal nutrition mainly depends on the appropriate bacterial strain and efficient substrate. Therefore, this study aimed to evaluate the impact of two probiotic strains containing 1.2  10 (CFU/g), produced on permeate media on performance responses of Rahmani ewes.

A newly developed bacteriocin like substance to replace monensin in diets of lactating ewes.

The aim of the present experiment was to evaluate the effect of feeding a newly produced bacteriocin-like substance (BLS) as a replacement for monensin in the diets of lactating ewes. In Experiment 1, the effects of BLS or monensin at 0.5, 1, 1.

Lactation performance and feed utilization of Rahmani ewes fed with either a newly produced bacteriocin-like substance or a commercial bacteriocin.

The aim of the present study was to compare the effect of feeding a newly produced bacteriocinlike substance from ssp (PNP) with a commercial bacteriocin (NISEEN-S; CNP) in lactating Rahmani ewe diets. In experiment 1, the effects of four levels (500, 1,000, 1,500, and 2,000 unit/kg substrate, dry matter (DM) basis) of both bacteriocins on in vitro ruminal fermentation kinetics, total gas production (TGP), methane production (CH), and nutrient degradability were determined. In experiment 2, 2 wk before the expected parturition, 30 multiparous lactating Rahmani ewes (mean ± SD: 2 ± 0.

A newly developed strain of isolated from fresh dairy products to be used as a probiotic in lactating Holstein cows.

The objective of this study was to determine the ability of an isolated strain (EGY_NRC1) or commercial (NCIMB 11181) as a probiotic for lactating cows. Two experiments were conducted: In Experiment 1, the effects of three levels (1, 2, and 3 g/kg diet, DM basis) of isolated and commercial on ruminal fermentation kinetics, gas, methane (CH) and nutrient degradability were determined. In Experiment 2, thirty multiparous Holstein cows (633 ± 25.