Results 81 to 90 of about 792,988 (337)

Drying off the dairy cow [PDF]

open access: yes, 2006
Most dairy cows generally have a non-lactating, “dry period” prior to parturition. As the milk production of dairy cows has increased dramatically during the last decades, cows managed conventionally with a 12 to 13 month-calving interval are dried off ...
Odensten, Martin
core  

Exergy and Economic Analysis of Hybrid Mechanical Vapor Compression and Membrane Distillation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybridization of two or more desalination processes has been identified as an attractive option for improved energy efficiency and recovery rate. To appropriately assess the performance enhancement of hybrid desalination systems, an integrated approach for energy, exergy, economic, and environmental investigations should be adopted. This study
Emad Ali, Jamel Orfi
wiley   +1 more source

In silico and in vitro studies revealed that rosmarinic acid inhibited methanogenesis via regulating composition and function of rumen microbiota

open access: yesJournal of Dairy Science
: Inhibition of methyl-coenzyme M reductase can suppress the activity of ruminal methanogens, thereby reducing enteric methane emissions of ruminants. However, developing specific and environmentally friendly inhibitors is a challenging endeavor.
Yunlong Liu   +4 more
doaj   +1 more source

TAX REFORM AND BEEF COW REPLACEMENT STRATEGY [PDF]

open access: yes
This paper models optimal beef cow replacement strategy in a stochastic environment under U.S. income tax rules effective before and after the Tax Reform Act of 1986. Under each tax regime, the producer's buy versus raise decision and optimal culling age
Carman, Hoy F., Innes, Robert
core   +1 more source

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind   +6 more
wiley   +1 more source

Functional analysis of Parabacteroides distasonis F4: a novel probiotic strain linked to calf growth and rumen fermentation

open access: yesJournal of Animal Science and Biotechnology
Background Rumen microorganisms are key regulators of ruminant growth and production performance. Identifying probiotic candidates through microbial culturomics presents a promising strategy for improving ruminant production performance.
Xiaoran Feng   +11 more
doaj   +1 more source

Tango with Cows [PDF]

open access: yesEmerging Infectious Diseases, 2009
Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 15, No. 3, March 2009 513 F animals engaged in a sophisticated dance is how poet Vasily Kamensky represented the incongruous entanglement between Russia’s rural past and sweeping modernism. In his daring book Tango with Cows, he abandoned syntax for a spatial arrangement of words on old wallpaper to
openaire   +3 more sources

Effects of negative energy balance on liver gene and protein expression during the early postpartum period and its impacts on dairy cow fertility [PDF]

open access: yes, 2007
End of project reportNegative energy balance (NEB) is a severe metabolic affecting high yielding dairy cows early post partum with both concurrent and latent negative effects on cow fertility as well as on milk production and cow health.
Diskin, Michael G.   +9 more
core  

Effects of Replacing Alfalfa Hay With Barley Silage in High‐Concentrate Diets: Chewing Behavior, Ruminal Fermentation, Total‐Tract Digestibility, and Milk Production of Dairy Cows in Mid‐Lactation Phase

open access: yesAnimal Research and One Health, EarlyView.
We assessed lactation productivity in dairy cows when replacing alfalfa hay with barley silage. A 50% replacement increased feed intake, whereas total replacement improved nutrient conversion to milk. Barley silage can effectively replace alfalfa hay, enhancing sustainability and resilience in dairy production amid forage quality constraints and market
M. R. Naji‐Zavareh   +5 more
wiley   +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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