Two Latin square design experiments investigated the relationship between hydrogen sulphide concentration in the rumen headspace gas of dairy cows and the early stages of protein degradation in the rumen. In Expt 1, three protein sources differing in rumen N (nitrogen) degradability (maize gluten feed (MGF); sunflower meal (SFM); and soyabean meal (SBM)) were used, whereas in Expt 2 four differ...

Grass degradability declines as cell wall and lignin concentrations increase during maturation. The role of tissue development and lignification in decline of stem degradability was examined in maize (Zea mays L.) internodes sampled at 10 stages of growth from early elongation through plant physiological maturity. The fourth elongated internode above ground level was collected from three maize ...

the seaweeds like sargassum ilicifolum arecan used for animal nutrition. the aim of this study was evaluated the nutritional value of sargassum ilicifolum as a food supplement in the diet of sheep. in this experiment were five diets containing zero, 10, 20, 30 and 40 percent of the seaweed were used. a completely randomized design was used to this purpose. in this study, the chemical compositio...

Effects of supplementation with ruminal epithelial cells on fiber-degrading activity and cell growth of Ruminococcus albus (R. albus, strain 7) was tested using a basal substrate of rice straw and formulated concentrate. Cultures of R. albus alone and R. albus with rumen protozoa were grown at 39C for 48 h with an 8.4% crude protein (CP) substrate, 33% of the CP supplemented with either rumina...

Degradation of dry matter (DM) and nitrogen (N) in fresh or frozen-thawed alfalfa and ryegrass was studied by using in situ technique. The forages were labeled with N during growth in a glasshouse, harvested at similar growth phase, and fresh (F) or frozen-thawed (FT) samples were incubated in the rumen of 3 sheep. There was no difference (P>0.05) between forage type (S) for the immediately sol...

The present study was conducted to investigate the possibility of using a modified in vitro gas production technique in place of the nylon bag method to estimate protein degradability of alfalfa hay in ruminants. In the in situ experiment dacron bags were filled with 3 g alfalfa hay. This was incubated in the rumen of three ruminally cannulated Ghezel rams for the periods of 0, 2, 4, 8, 12, 16,...

KOPČEKOVÁ, J., ČEREŠŇÁKOVÁ, Z., FĽAK, P., MLYNEKOVÁ, Z.: Eff ect of mechanical processing of ce reals on rumen starch degradability. Acta univ. agric. et silvic. Mendel. Brun., 2010, LVIII, No. 2, pp. 139–146 Although starch in cereal grain is almost completely digested in the whole digestive tract, the rate and extent of ruminal degradation and fermentation vary widely with grain source and ce...

Protein in red clover (Trifolium pratense L.), a forage that does not contain condensed tannins, has been found to be degraded less extensively in the rumen than the protein in other non-tannin legumes. The objective of this study was to determine if there are genetic differences in rumen degradability of the protein in red clover forage. Field grown forage was harvested from 133 red clover ent...

the present study was conducted to investigate the possibility of using a modified in vitro gas production technique in place of the nylon bag method to estimate protein degradability of alfalfa hay in ruminants. in the in situ experiment dacron bags were filled with 3 g alfalfa hay. this was incubated in the rumen of three ruminally cannulated ghezel rams for the periods of 0, 2, 4, 8, 12, 16,...