Results 61 to 70 of about 790,948 (240)

Metabolic lipid alterations in subclinical ketotic dairy cows: A multisample lipidomic approach

open access: yesJournal of Dairy Science
: Subclinical ketosis (SCK) is a prevalent metabolic disorder in dairy cows during the transition period, characterized by elevated BHB levels without overt clinical symptoms.
Y.R. He   +6 more
doaj   +1 more source

Rumen Fermentation Characteristics in Pre- and Post-Weaning Calves upon Feeding with Mulberry Leaf Flavonoids and Candida tropicalis Individually or in Combination as a Supplement

open access: yesAnimals, 2019
Although flavonoids or yeast have been used as feed additives to improve the production efficiency and health of adult cattle, little information is available on their effects on rumen fermentation in calves.
Luxin Kong   +6 more
doaj   +1 more source

Resveratrol affects in vitro rumen fermentation, methane production and prokaryotic community composition in a time‐ and diet‐specific manner

open access: yesMicrobial Biotechnology, 2020
Summary This study aimed to investigate the effect of resveratrol on methane production, rumen fermentation and microbial composition under high‐concentrate (HC) and high‐forage (HF) diets using the in vitro fermentation system.
Tao Ma, W. Wu, Y. Tu, N. Zhang, Q. Diao
doaj   +1 more source

COMMERCIAL BEEF HERD REPLACEMENT STRATEGIES [PDF]

open access: yes
Annualized cow ownership costs represent a large component of the total costs in a cow-calf enterprise, and therefore impact profitability. Annualized cow costs are determined in large part by the price or cost of that cow when it entered the herd.
Fanning, Jasper   +2 more
core   +1 more source

The Diverse Structure and Organization of U.S. Beef Cow-Calf Farms [PDF]

open access: yes
Beef cow-calf production in the United States is widespread, occurring in every State. Nearly 765,000 farms, about 35 percent of the 2.2 million farms in the United States, had a beef cow inventory in 2007. Most of these were small, part-time operations.
Mathews, Kenneth H., Jr.   +1 more
core   +1 more source

Heat stress compromises nutritional quality and flavor of bovine raw milk: Evidence from multi-omics analyses

open access: yesFood Chemistry: X
Heat stress is a growing concern for dairy production under global climate change. This study employed integrated multi-omics approaches to investigate how heat stress affects the antioxidant capacity, microbiota, metabolite profiles, lipid composition ...
Yuchao Zhao   +7 more
doaj   +1 more source

Effects of different molecular weights of chitosan on methane production and bacterial community structure in vitro

open access: yesJournal of Integrative Agriculture, 2020
As a new feed additive, chitosan has been shown in recent years to have a certain role in reducing methane emissions from the gastrointestinal tracts of ruminants.
Jin-jin TONG   +6 more
doaj   +1 more source

Characterization of the on-body path Loss at 2.45 GHz and energy efficient WBAN design for dairy cows [PDF]

open access: yes, 2016
Wireless body area networks (WBANs) provide promising applications in the healthcare monitoring of dairy cows. The characterization of the path loss (PL) between on-body nodes constitutes an important step in the deployment of a WBAN.
Benaissa, Said   +10 more
core   +2 more sources

Fusing website usability and search engine optimisation

open access: yesSouth African Journal of Information Management, 2014
Background: Most websites, especially those with a commercial orientation, need a high ranking on a search engine for one or more keywords or phrases. The search engine optimisation process attempts to achieve this. Furthermore, website users expect easy
Eugene B. Visser, Melius Weideman
doaj   +1 more source

Natural dairy cow health [PDF]

open access: yes, 2011
guide to keeping your herd healthy with herbs and other natural ...
Groot, Maria   +3 more
core  

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