Effect of summer forage species grazed during finishing on animal performance, carcass quality, and meat quality1,2

2013 ◽  
Vol 91 (9) ◽  
pp. 4451-4461 ◽  
Author(s):  
J. R. Schmidt ◽  
M. C. Miller ◽  
J. G. Andrae ◽  
S. E. Ellis ◽  
S. K. Duckett
Keyword(s):  
Carcass Quality ◽  
Animal Performance ◽  
Forage Species

scholarly journals 68 Assessing the Performance of Multiple Grass-fed Beef Production Systems in California

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 46-47
Author(s):  
Sarah C Klopatek ◽  
Toni Duarte ◽  
Crystal Yang ◽  
James W Oltjen
Keyword(s):  
Mixed Model ◽  
Systems Approach ◽  
Production Systems ◽  
Carcass Quality ◽  
Animal Performance ◽  
Beef Production ◽  
Marbling Score ◽  
Final Body Weight ◽  
Whole Systems

Abstract With demand for grass-fed beef continuing to increase, there is an immediate need to determine animal performance and product quality from varying grass-fed systems. Therefore, using a whole systems approach, we investigated the performance and carcass quality of multiple grass-fed beef systems in California. The treatments included: 1) steers stocked on pasture, then feedyard finished for 140 days (CON); 2) steers grass-fed for 20 months (20GF); 3) steers grass-fed for 20 months with a 45-day grain finish (GR45); and 4) steers grass-fed for 25 months (25GF). The data were analyzed using a mixed model procedure in R. Final body weight (FBW) varied significantly between treatments (P < 0.05) with the CON cattle finishing at 626 kg and GF20 finishing with the lowest FBW of 478 kg. There were no significant differences in FBW between GF45 and GF25 treatments (P > 0.05), with FBW equaling 551 kg and 570 kg, respectively. Dressing percentage (DP) differed significantly between all treatments (P < 0.05), with CON DP at 61.8%, followed by GR45 at 57.5%, GF25 at 53.4%, and GF20 at 50.3%. Marbling scores and quality grades were significantly higher for CON compared to all other treatments (P < 0.05), with a marbling score of 421; 14% of CON animals graded select and 85% graded choice or upper choice. Cattle in the GR20 had the lowest marbling score of 285 (P < 0.05); 59% of the GR20 cattle graded select and 41% graded standard. There was no difference in marbling when comparing the GF25 and GR45 (P > 0.5). In addition, carcasses graded similarly between the two treatments with GF25 grading 13% standard 82% select, and 6% choice, GR45 graded 85% select and 15% choice. The findings from this study indicate that varying CA grass-fed beef production systems results in significant differences in both animal performance and meat quality.

scholarly journals Effects of forage species or concentrate finishing on animal performance, carcass and meat quality1,2

2013 ◽  
Vol 91 (3) ◽  
pp. 1454-1467 ◽  
Author(s):  
S. K. Duckett ◽  
J. P. S. Neel ◽  
R. M. Lewis ◽  
J. P. Fontenot ◽  
W. M. Clapham
Keyword(s):  
Animal Performance ◽  
Forage Species

Effect of feather meal on live animal performance and carcass quality and composition of growing-finishing swine1

2003 ◽  
Vol 81 (1) ◽  
pp. 172-181 ◽  
Author(s):  
J. K. Apple ◽  
C. B. Boger ◽  
D. C. Brown ◽  
C. V. Maxwell ◽  
K. G. Friesen ◽  
...  
Keyword(s):  
Carcass Quality ◽  
Animal Performance ◽  
Feather Meal ◽  
Live Animal

Forage Species and Stocking Rate Effects on Animal Performance and Herbage Responses of ‘Mulato’ and Bahiagrass Pastures

Crop Science ◽  
2010 ◽  
Vol 50 (3) ◽  
pp. 1079-1085 ◽  
Author(s):  
U. Inyang ◽  
J. M. B. Vendramini ◽  
L. E. Sollenberger ◽  
B. Sellers ◽  
A. Adesogan ◽  
...  
Keyword(s):  
Stocking Rate ◽  
Animal Performance ◽  
Rate Effects ◽  
Forage Species

scholarly journals Adult steers for beef production: breed effect on animal performance, retail yield and carcass quality

2011 ◽  
Vol 51 (No. 11) ◽  
pp. 467-474 ◽  
Author(s):  
C. Vieira ◽  
A. Cerdeño ◽  
E. Serrano ◽  
Mantecón AR
Keyword(s):  
Growth Rates ◽  
Carcass Quality ◽  
Animal Performance ◽  
Beef Production ◽  
Mountain Areas ◽  
Dual Purpose ◽  
Local Breed ◽  
Brown Swiss ◽  
Mature Size ◽  
South Of Europe

The production of adult steers for beef could be a profitable use of the territory in some mountain areas in the south of Europe, where this production is nearly inexistent, owing to an increase in the demand for meat from adult animals in specialized markets. The objective of this study was to evaluate the profitability of beef production in three breeds adapted to these areas but varying greatly in their mature size. The studied breeds were a specialized meat breed Limousin, a dual-purpose breed – Brown Swiss breed and – a Spanish local breed Asturiana de los Valles. Higher growth rates (P < 0.05) and higher carcass weights (P < 0.05) were achieved by Brown Swiss and Limousin. In relation to carcass value, better results of dressing percentage (P < 0.001), conformation (P < 0.001) and saleable meat percentages (P < 0.001) were obtained byLimousin. Due to preferences of the adult steers market for carcass with high fatness, Brown Swiss and Limousin could be more suitable to make this production profitable than Asturiana de los Valles (4.7 and 4.2 vs. 2.7, respectively, on the EUROP scale).  

7.2 The Effect of Forage Species and Stocking Rate on Protein Supply to the Duodenum of Cattle

1982 ◽  
Vol 6 ◽  
pp. 144-145 ◽  
Author(s):  
H. R. Losada ◽  
S. B. Cammell ◽  
D. E. Beever ◽  
A. R. Austin
Keyword(s):  
Small Intestine ◽  
Perennial Ryegrass ◽  
White Clover ◽  
Growing Season ◽  
Stocking Rate ◽  
Animal Performance ◽  
Portable Equipment ◽  
Forage Species ◽  
Few Data ◽  
Protein Supply

Whilst the quantity and nature of the forage available to grazing ruminants is known to vary quite dramatically throughout the growing season, there are still surprisingly few data on the energy and protein value of such materials and, consequently, supplementation of such diets to maintain high levels of animal performance remains empirical.The recent development of portable equipment for the continuous intraruminal infusion of digesta markers (Corbett, Furnival, Inskip, Perez and Pickering, 1976; Evans, Hayes and Beever, 1981) and the automatic collection of duodenal digesta from T-piece cannulated cattle (Evans, Skelton and Beever, 1981) have, however, provided reliable means by which the flow of nutrients to the small intestine can be measured in grazing sheep (Corbett, Furnival, Inskip and Pickering, 1982) and cattle (Ulyatt, Beever, Thomson, Evans and Haines, 1980). The work reported in this paper is a continuation of the study commenced by Ulyatt et al. (1980), with the objective of this experiment being to examine the digestion of pure swards of perennial ryegrass and of white clover throughout the season when offered at two allowances to young growing cattle.

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