Effects of dietary tallow containing trace amounts of ractopamine on beef cattle performance and tissue residue levels and the effect of withdrawal time on ractopamine residues in the gastrointestinal-tract digesta

2021 ◽  
Vol 37 (4) ◽  
pp. 460-469
Author(s):  
Haley E. Davis ◽  
Ashley Budde ◽  
Ifigenia Geornaras ◽  
Valerie Lindstrom ◽  
Jacqueline Chaparro ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Beef Cattle ◽  
Withdrawal Time ◽  
Tissue Residue ◽  
Residue Levels ◽  
Cattle Performance

Effects of Leptin Gene Polymorphism on Beef Cattle Performance

2020 ◽  
Vol 46 (6) ◽  
pp. 614-618
Author(s):  
T. A. Sedykh ◽  
L. A. Kalashnikova ◽  
R. S. Gizatullin ◽  
V. I. Kosilov
Keyword(s):  
Gene Polymorphism ◽  
Beef Cattle ◽  
Cattle Performance

scholarly journals Diet and Genetics Influence Beef Cattle Performance and Meat Quality Characteristics

Foods ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 648 ◽  
Author(s):  
Felista W. Mwangi ◽  
Edward Charmley ◽  
Christopher P. Gardiner ◽  
Bunmi S. Malau-Aduli ◽  
Robert T. Kinobe ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Beef Cattle ◽  
Fatty Acid Synthase ◽  
High Energy ◽  
Meat Industry ◽  
Fatty Acid Binding ◽  
Meat Eating ◽  
Stearoyl Coa Desaturase ◽  
The Impact ◽  
Cattle Performance

A comprehensive review of the impact of tropical pasture grazing, nutritional supplementation during feedlot finishing and fat metabolism-related genes on beef cattle performance and meat-eating traits is presented. Grazing beef cattle on low quality tropical forages with less than 5.6% crude protein, 10% soluble starches and 55% digestibility experience liveweight loss. However, backgrounding beef cattle on high quality leguminous forages and feedlot finishing on high-energy diets increase meat flavour, tenderness and juiciness due to improved intramuscular fat deposition and enhanced mono- and polyunsaturated fatty acids. This paper also reviews the roles of stearoyl-CoA desaturase, fatty acid binding protein 4 and fatty acid synthase genes and correlations with meat traits. The review argues that backgrounding of beef cattle on Desmanthus, an environmentally well-adapted and vigorous tropical legume that can persistently survive under harsh tropical and subtropical conditions, has the potential to improve animal performance. It also identifies existing knowledge gaps and research opportunities in nutrition-genetics interactions aimed at a greater understanding of grazing nutrition, feedlot finishing performance, and carcass traits of northern Australian tropical beef cattle to enable red meat industry players to work on marbling, juiciness, tenderness and overall meat-eating characteristics.

Effect of total mixed ration processing time on ration consistency and beef cattle performance during the early fattening period

2020 ◽  
Vol 262 ◽  
pp. 114421
Author(s):  
Giorgio Marchesini ◽  
Martina Cortese ◽  
Nicola Ughelini ◽  
Rebecca Ricci ◽  
Maria Chinello ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Processing Time ◽  
Total Mixed Ration ◽  
Fattening Period ◽  
Cattle Performance

Feasibility of Bedded Hoop Barns for Market Beef Cattle in Iowa: Cattle Performance, Bedding Use, and Environment

2008 ◽  
Vol 24 (2) ◽  
pp. 251-256 ◽  
Author(s):  
M. S. Honeyman ◽  
J. D. Harmon ◽  
S. C. Shouse ◽  
W. D. Busby ◽  
D. L. Maxwell
Keyword(s):  
Beef Cattle ◽  
Cattle Performance

EFFECT OF COLLECTION INTERVAL ON NUTRIENT DIGESTION DETERMINED WITHIN THE GASTROINTESTINAL TRACT OF BEEF CATTLE

1987 ◽  
Vol 67 (4) ◽  
pp. 1149-1153 ◽  
Author(s):  
I. B. MANDELL ◽  
G. I. CHRISTISON ◽  
H. H. NICHOLSON
Keyword(s):  
Organic Matter ◽  
Small Intestine ◽  
Gastrointestinal Tract ◽  
Beef Cattle ◽  
Crude Protein ◽  
Experimental Period ◽  
Barley Grain ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Lignin ◽  
Nutrient Digestion

Duodenal digesta, ileal digesta, and feces were collected from steers fed diets containing 50% barley grain, 50% brome-alfalfa hay. These were composited over days 1–3, 4–6 and 1–6 of each experimental period. Acid detergent lignin and chromic oxide were used as digestibility markers. Three- or six-day collection intervals did not affect the estimate of organic matter digestion in the forestomach, small or large intestine, and total tract. Differences (P < 0.05) in estimates of nutrient digestion between 3-d collection periods occurred for neutral detergent fiber in the forestomach and crude protein in the small intestine. Key words: Collection interval, partitioning of digestibility, markers, cattle, gastrointestinal tract

scholarly journals Notable fibrolytic enzyme production by Aspergillus spp. isolates from the gastrointestinal tract of beef cattle fed in lignified pastures

PLoS ONE ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. e0183628 ◽  
Author(s):  
Flávia Oliveira Abrão ◽  
Eduardo Robson Duarte ◽  
Moisés Sena Pessoa ◽  
Vera Lúcia dos Santos ◽  
Luiz Fernando de Freitas Júnior ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Beef Cattle ◽  
Enzyme Production
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