Results 51 to 60 of about 2,545 (223)
Animal, 2023 Nutrient synchronisation of protein and carbohydrates is a promising practice to improve ruminal nutrient utilisation. However, dietary sources supplying these nutrients can vary in ruminal nutrient availability due to differing degradation rates ...
M.E. Hanlon +6 more
doaj +1 more source
Distribution and changes in urease (EC3.5.1.5) activity in Rumen Simulation Technique (Rusitec) [PDF]
British Journal of Nutrition, 1982 1. The Rumen Simulation Technique (Rusitec) was used in a series of long-term experiments to study the distribution and changes of urease (EC3.5.1.5) activity in a heterogeneous fermentation system.2. It was shown that in Rusitec the high urease activity from the inoculum decreased to low values, that the rate of decrease was consistent with simple ...
J W, Czerkawski, G, Breckenridge
openaire +2 more sources
Journal of Animal Physiology and Animal Nutrition, Volume 104, Issue 6, Page 1678-1689, November 2020., 2020 Abstract Subacute rumen acidosis (SARA) is a common problem in dairy cattle. High‐concentrate rations lead to an accumulation of short‐chain fatty acids (SCFA) in the rumen and a subsequent decrease in ruminal pH. As SARA impairs animal welfare and productivity, numerous in vivo studies are focusing on evaluation of prevention strategies.
Theresa Orton +3 more
wiley +1 more source
, 2018 Urea in diets of ruminants has been investigated to substitute expensive animal and vegetable protein sources for more than a century, and has been widely incorporated in diets of ruminants for many years.
Aschenbach, Jörg Rudolf +1 more
core +1 more source
Journal of the Science of Food and Agriculture, Volume 100, Issue 5, Page 2261-2271, 30 March 2020., 2020 Abstract BACKGROUND Climatic and dietary shifts predispose ruminal microbes to hyperthermal and hyperosmotic stress, leading to poor fermentation and subsequently adverse effects on ruminant productivity. Betaine may function as substrate, osmolyte, antioxidant, and methyl donor for microbes.
Mubarik Mahmood +4 more
wiley +1 more source
Archaea, Volume 2020, Issue 1, 2020., 2020 Rumen archaea play an important role in scavenging ruminal hydrogen (H2) and thus facilitate rumen fermentation. They require optimum temperature and osmolality for their growth and metabolism; however, a number of external factors may put archaea under heat and osmotic stress. Betaine is an osmolyte, molecular chaperone, and antioxidant; therefore, it
Mubarik Mahmood +4 more
wiley +1 more source
Effect of microbial oil, evening primrose oil and borage oil on rumen fermentation in vitro
Veterinární Medicína, 2005 The objective of this study was to examine the effects of microbial oil, evening primrose oil and borage oil on rumen fermentation of a diet consisting of 80% of hay and 20% of barley in an artificial rumen (Rusitec).
D. Jalc +4 more
doaj +1 more source
Investigation of ruminant xenobiotic metabolism in a modified rumen simulation system (RUSITEC)
ALTEX, 2018 The approving agencies for plant protection agents request xenobiotic metabolism and residue studies in rats, farm animals and plants (e.g. EU regulation 1107/2009) according to OECD guidelines. The specific intestinal physiology of ruminants might lead to specific residues, which should be investigated very carefully.
Barbara, Birk +6 more
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Forest Systems, 2018 Aim of study: To evaluate the impact of Cistus ladanifer L. (rockrose) tannins on ruminal degradability and fermentation characteristics and the use of polyethylene glycol (PEG), as feed additive, to mitigate the anti-nutritional effects of rockrose ...
Maria Teresa P. Dentinho +2 more
doaj +1 more source
Effet de l'éthanol sur les fermentations dans un fermenteur semi-continu de type Rusitec [PDF]
Reproduction Nutrition Développement, 1988 National ...
Durix, A. +3 more
openaire +3 more sources