Results 111 to 120 of about 260,334 (219)

Digestion, rumen fermentation and circulating concentrations of insulin, growth hormone and IGF-1 in steers fed diets based on different proportions of maize silage and grass silage [PDF]

open access: yes, 2008
Replacing grass silage with maize silage results in a fundamental change in the ratio of structural to non-structural carbohydrates with commensurate changes in rumen fermentation patterns and nutrient utilisation.
Juniper, Darren Thomas   +3 more
core   +1 more source

Predicting methane production in dairy cows [PDF]

open access: yes, 2013
Methane is a potent greenhouse gas, to which enteric fermentation from ruminants contributes significantly. Reliable and accurate predictions of methane (CH₄) production from dairy cows would be of interest to develop mitigation strategies and for ...
Ramin, Mohammad
core   +1 more source

Effect of butorphanol in combination with xylazine during castration of calves: A randomised trial under field conditions

open access: yesVeterinary Record, Volume 199, Issue 6, Page e298-e303, 19/26 September 2026.
Abstract Background In horses, cats and dogs, the opioid butorphanol has been proven effective in management of visceral pain and for peri‐ and postoperative pain relief. The aim of this study was to evaluate physiological responses and indicators of noxious stimuli when adding butorphanol to xylazine for sedation of bull calves during surgical ...
Axel Sannö   +3 more
wiley   +1 more source

Effects of oil and natural or synthetic vitamin E on ruminal and milk fatty acid profiles in cows receiving a high-starch diet [PDF]

open access: yes, 2012
Among trans fatty acids, trans-10,cis-12 CLA has negative effects on cow milk fat production and can affect human health. In high-yielding dairy cows, a shift from the trans-11 to the trans-10 pathway of biohydrogenation (BH) can occur in the rumen of ...
Troegeler-Meynadier, Annabelle   +3 more
core   +1 more source

Effect of Ethanol on Rumen Fermentation

open access: yesJournal of Dairy Science, 1959
Summary Ethanol (800ml., 47.5%) was administered via rumen fistula during the once-daily feeding of: (1) 14lb. timothy hay plus 4lb. of equal parts of ground corn and ground corncobs or (2) Ration 1 with 3% urea replacing corn or (3) 20lb. alfalfa hay, to twin 1,100-lb. cows. Each ration was fed with and without ethanol to each cow for 14-day periods.
R.S. Emery   +3 more
openaire   +1 more source

ECOLOGICAL TREATISE ON THE RUMEN FERMENTATION

open access: yesThe Journal of General and Applied Microbiology, 1966
The biochemical features of bacterial population in the gauze filtrate fraction or other respective bacterial fractions gradually eluted from the digesta solids were examined for their activities towards cellulose, starch or succinate. The rumen contents of sheep fed hay and concentrates was squeezed through a layer of two sheets of gauze to obtain the
HAJIME MINATO   +3 more
openaire   +2 more sources

Mechanistic insights into inositol-mediated rumen function promotion and metabolic alteration using in vitro and in vivo models

open access: yesFrontiers in Veterinary Science
Inositol is a bioactive factor that is widely found in nature; however, there are few studies on its use in ruminant nutrition. This study investigated the effects of different inositol doses and fermentation times on rumen fermentation and microbial ...
Guopei Yin   +18 more
doaj   +1 more source

Optaflexx1 affects rumen fermentation [PDF]

open access: yes, 2007
Three experiments were conducted to determine effects of ractopamine-HCl, sold under the trade name Optaflexx, on rumen fermentation. In experiment 1, fermentative gas production was measured in vitro to determine the impact of increasing amounts of ...
James S. Drouillard   +5 more
core   +1 more source

No rumen fermentation profiles and associated microbial diversities difference were found between Hu sheep and Karakul sheep fed a cottonseed hull diet

open access: yesMicrobiome
Background This research aimed to investigate differences in rumen fermentation characteristics between Karakul sheep and Hu sheep reared under identical conditions.
Jishu Wang   +9 more
doaj   +1 more source

Patterns of Spatial Variation in Rumen Microbiology, Histomorphology, and Fermentation Parameters in Tarim wapiti (Cervus elaphus yarkandensis)

open access: yesMicroorganisms
The rumen is divided into multiple rumen sacs based on anatomical structure, and each has its unique physiological environment. Tarim wapiti preserved roughage tolerance after domestication, and adaptation to the desertified environment led to the ...
Jianzhi Huang   +6 more
doaj   +1 more source

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