Results 91 to 100 of about 148,897 (216)

Physiologic and innate immunity responses to bacterial lipopolysaccharide administration in beef heifers supplemented with OmniGen-AF

open access: yesAnimal, 2019
Nutritional alternatives to strengthen animal immunocompetence are critical for welfare and productivity in livestock systems, such as beef cattle operations.
A.P. Brandão   +3 more
doaj   +1 more source

Uptake of Sexed Semen by UK Suckler Beef Producers [PDF]

open access: yes
Dairy farmers have been able to use sexed semen from dairy breeds to pre-determine the sex of calves since 2000, sexed semen from beef bulls is not currently commercially available, but is expected within 2 years.
Telford, D.J., Beard, A.P., Franks, J.R.
core  

Carbon Footprint of Beef Cattle in a Conventional Production System: a Case Study of a Large-Area Farming Enterprise in the Wielkopolska Region

open access: yesZeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego, 2018
Animal production is a significant source of greenhouse gas (GHG) emissions. One of the major challenges in sustainable management is to mitigate the effects of climate change by reducing GHG emissions.
Jerzy Bieńkowski   +3 more
doaj   +1 more source

Feeding value of peas for backgrounding beef heifers

open access: yes, 2004
Four diets in which peas progressively replaced barley [0% (0P), 30% (30P), 50% (50P), and 100% peas (100P)] and one in which canola meal (CM) replaced 10% of the barley, were fed to 90 beef heifers (initial weight 215.8 ± 13.8 kg).
Chen, J-Q.   +3 more
core   +1 more source

Artificial infestation of Boophilus microplus in beef cattle heifers of four genetic groups

open access: yesGenetics and Molecular Biology, 2007
Resistance of beef cattle heifers to the cattle tick Boophilus microplus was evaluated by artificial infestation of 66 beef cattle heifers of the following genetic groups: 16 Nelore (NE), 18 Canchim x Nelore (CN), 16 Angus x Nelore (AN) and 16 Simmental ...
Ana Mary da Silva   +4 more
doaj   +1 more source

RELATIONSHIP BETWEEN ATTRIBUTES OF BEEF CATTLE RAISED USING ULTRASOUND TECHNOLOGY AND PRICES RECEIVED AT THE PACKERS: A HEDONIC PRICE ANALYSIS [PDF]

open access: yes
Sluggish growth in per capita consumption and a downward pressure on beef price at the farm level has required producers to raise cattle that precisely target the meat attributes desired by consumers.
Paschal, Joe C.   +2 more
core  

Effects of LPS-induced inflammation on leukogram and biochemical parameters in feedlot beef heifers

open access: yesCiência Animal Brasileira
Beef cattle in feedlot systems may develop diseases associated with endotoxin release, such as lipopolysaccharide (LPS). However, few studies have evaluated experimental acute endotoxemia in beef heifers.
Andressa Stein Maffi   +8 more
doaj  

Improving the Productivity of Beef Heifers in Florida

open access: yesEDIS, 1969
This document is AN132, one of a series of the Animal Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date February 2003. 
openaire   +4 more sources

STEER AND HEIFER PRICE DIFFERENCES IN THE LIVE CATTLE AND CARCASS MARKETS [PDF]

open access: yes
A dynamic model is used to estimate quarterly price differences between steers and heifers in the feeder, slaughter, and carcass markets. For cattle within the same weight and grade range, their price differences are hypothesized to be influenced by ...
Marsh, John M., Schultz, Robert W.
core  

Grid Marketing and Beef Carcass Quality: A Discussion of Issues and Trends [PDF]

open access: yes
Beef industry data suggest that improvements in carcass yield and quality grades have stagnated recently. Empirical analysis, based on USDA market reports, indicates that the share of steer slaughter volume marketed on a grid is less than industry ...
Diersen, Matt   +2 more
core  

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