in a 3×3 latin square design three treatments including: 1) basal diet (control) in addition to diets containing 2) 100 and 3) 200 mg/day of peppermint essential oils were tested in three ruminally cannulated male sheep with average body weight of 50±3 kg. rumen liquor was sampled 3 hours after feeding to determine rumen ph, n-nh3 and volatile fatty acids. on the last day of each period, blood ...

the aim of this study was to investigate the effect of reducing metabolizable protein with rumen-protected lysine and methionine in diet during the last 5 weeks of gestation on performance and blood parameters of afshari ewes and lambs. twenty five mature (once lambing) ewes in a unbalanced complete randomized design fed with diets containing low metabolizable protein but containing rumen-prote...

The aim of this study was to compare the nutritional value of sunflower meal (SFM) and soybean meal (SBM) protein by determining both its ruminal degradability and intestinal digestibility. Three non lactating Jersey cows fitted with a rumen and T-type duodenal cannulas were used to estimate rumen degradability and intestinal digestibility of SFM and SBM dry matter (DM) and crude protein (CP). ...

This study was conducted to evaluate the possibility of alfalfa replacement with fenugreek hay for ruminants, using in vitro gas production parameters and some of rumen fermentation characteristics. For this propose, five different total mixed rations were formulated to meet nutrient requirements of 35 kg growing lambs with gradually replacement of alfalfa in control diet (T1) with different le...

Dissolved hydrogen (dH) influences the pathways of VFA production and is a precursor of methane formation in the rumen. Measurements of dH in rumen fluid taken at the same time as measuring other rumen fermentation end products would improve our quantitative understanding of the role of dH as a controller of rumen fermentation. Sample collections though a rumen cannula and using oral stomach tu...

The objective of this study was to investigate the effects of cut and irrigation water quality on chemical composition and in situ dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) degradability of alfalfa. Three fistulated Zel sheep (approximately 2 years old) were used in a complete randomized design to evaluate the in situ rumen degradability. Ruminal in...

Hydrogen is a central metabolite in rumen fermentation and its partial pressure is an important determinant of rumen methanogenesis. The balance of hydrogen ion (H+) and dissolved hydrogen gas (H2) concentrations directly determine the redox potential of the rumen and therefore the possible extent of oxidation of feedstuffs. Differential permeability of the bacterial membrane to H+ and H2 means...

The present study was conducted to evaluate the effect of different doses of the Sanguisorba officinalis tannin extract (SOTE) on in vitro methane production, rumen microorganisms and basic rumen fermentation parameters. SOTE contained 451 mg g-1 of total tannins was tested at different doses (0, 1, 4, 10, 20, 40 and 100 mg of SOTE per vessel; the input of tannins was 0, 1.3, 5.1, 12.8, 25.6, 5...