Effect of high oil corn in the diets of Nellore steers on growth performance, carcass characteristics, meat quality, and longissimus muscle fatty acid profile

2015 ◽  
Vol 174 ◽  
pp. 31-38 ◽  
Author(s):  
J.L. Domingues ◽  
A.J.C. Nuñez ◽  
R.C. Gomes ◽  
A.C. Valinote ◽  
S.L. Silva ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Longissimus Muscle ◽  
High Oil Corn

scholarly journals Effects of Supplements Differing in Fatty Acid Profile to Late Gestational Beef Cows on Steer Progeny Finishing Phase Growth Performance, Carcass Characteristics, and mRNA Expression of Myogenic and Adipogenic Genes

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1904
Author(s):  
Taoqi Shao ◽  
Joshua C. McCann ◽  
Daniel W. Shike
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Mrna Expression ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Beef Cows ◽  
Feed Ratio ◽  
Phase Growth ◽  
Pufa Supplementation ◽  
Relative Mrna Expression

The objective was to investigate the effects of feeding late gestational beef cows supplements differing in fatty acid profile on steer progeny finishing phase growth performance, carcass characteristics, and relative mRNA expression of myogenic and adipogenic genes. Seventy Angus-cross steers (initial body weight [BW] 273 ± 34 kg) born from dams supplemented with either 155 g DM/d EnerGII (CON, rich in palmitic and oleic acids) or 80 g DM/d Strata + 80 g DM/d Prequel (PUFA, rich in linoleic acid, eicosapentaenoic acid, and docosahexaenoic acid) for the last 77 ± 6 d prepartum were used. Longissimus muscle and subcutaneous adipose biopsies were collected to evaluate relative mRNA expression of genes related to myogenesis and adipogenesis. Steers were slaughtered at 423 ± 6 d of age. No treatment × time interaction or treatment effect (p ≥ 0.21) was detected for steer finishing phase BW, while steers from PUFA supplemented dams tended (p = 0.06) to have a greater gain to feed ratio (G:F). Neither carcass characteristics nor relative mRNA expression was different (p ≥ 0.11). In conclusion, late gestation PUFA supplementation tended to increase steer progeny finishing phase G:F, but had no effects on finishing phase BW, carcass characteristics, or relative mRNA expression during the finishing phase.

scholarly journals Carcass characteristics, chemical composition and fatty acid profile of longissimus muscle of young bulls from four genetic groups finished in feedlot

2012 ◽  
Vol 41 (2) ◽  
pp. 384-391 ◽  
Author(s):  
Roberto Haruyoshi Ito ◽  
Ivanor Nunes do Prado ◽  
Polyana Pizzi Rotta ◽  
Marival Gustavo de Oliveira ◽  
Rodolpho Martin do Prado ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Longissimus Muscle ◽  
Genetic Groups

scholarly journals Relationships between Hha1 Calpastatin Gene Polymorphism, Growth Performance, and Meat Characteristics of Awassi Sheep

Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 667
Author(s):  
Khaleel I. Jawasreh ◽  
Ahmad H. Al-Amareen ◽  
Pauline Y. Aad
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Meat Quality ◽  
Gene Polymorphisms ◽  
Carcass Characteristics ◽  
Quality Parameters ◽  
Longissimus Muscle ◽  
Final Body Weight ◽  
Awassi Sheep ◽  
Ram Lambs

Advances in molecular genetics have allowed the identification of genes that can enhance livestock production. The aim of this study was to investigate possible relationships between the calpastatin (CAST) Hha1 gene polymorphisms and growth performance, carcass characteristics, and meat quality in Awassi sheep. A total of 87 blood samples were collected from two-week-old Awassi ram lambs. The amplification of the CAST Hha1 gene yielded a fragment of 622 bp. Three CAST genotypes were found in Awassi sheep: MM for two fragments (385 bp and 281 bp), MN for three fragments (622 bp, 385 bp, and 281 bp), and NN for only one fragment (622 bp). The M and N allele frequencies of the CAST Hha1 genotypes were 0.765 and 0.235, respectively, while the genotypic frequencies of MM, MN, and NN were 0.586, 0.356, and 0.057, respectively. Based on CAST Hha1 gene polymorphisms, three groups of lambs (MM: n = 8; MN: n = 6; and NN: n = 3 genotypes) were subjected to a fattening period of 70 days to investigate growth performance and meat characteristics. Only the final body weight and longissimus muscle width were significantly different between the three genotypes, while no significant differences were detected in any other carcass characteristics and meat quality parameters. In this study, new variants were observed in CAST using the Hha1 restriction site, potentially assisting in Awassi sheep breeding and selection programs to improve final body weight and longissimus muscle width.

scholarly journals Effect of CLA supplementation to low-protein diets on the growth performance, carcass characteristics, plasma urea nitrogen concentration, and fatty acid profile in the meat of pigs

2014 ◽  
Vol 57 (5) ◽  
pp. 742-754 ◽  
Author(s):  
Manuel Martínez-Aispuro ◽  
José Luis Figueroa-Velasco ◽  
Vicente Zamora-Zamora ◽  
José Luis Cordero-Mora ◽  
Carlos Narciso-Gaytán ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Nitrogen Concentration ◽  
Carcass Characteristics ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Low Protein ◽  
Protein Diets

Effect of management strategy on growth performance, carcass characteristics, fatty acid composition, and palatability attributes in crossbred steers

2002 ◽  
Vol 82 (1) ◽  
pp. 49-57 ◽  
Author(s):  
F. L. Laborde ◽  
I. B. Mandell ◽  
J. J. Tosh ◽  
J. G. Buchanan-Smith ◽  
J. W. Wilton
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Growth Performance ◽  
Acid Composition ◽  
Management Strategy ◽  
Management Strategies ◽  
Carcass Characteristics ◽  
Carcass Composition ◽  
Longissimus Muscle

Crossbred steers (n = 136) were used to evaluate the effect of management strategy on growth performance, carcass characteristics, and fatty acid composition and palatability attributes of beef. Management strategies included: (1) high grain (75% high moisture corn) finishing (HG), or (2) backgrounding with restricted feeding of an alfalfa silage ration for 112 d, followed by HG until slaughter (BKG). Steers were slaughtered at 8–10 mm ultrasound backfat. Backgrounding increased (P < 0.001) days on feed and decreased (P < 0.01) days on grain, average daily gain and longissimus muscle area compared with the HG regime. Slaughter weight, intramuscular fat content, and marbling score were unaffected (P > 0.10) by management strategy. Longissimus muscle palatability attributes and shear force did not differ (P > 0.10) between management strategies, whereas BKG increased (P < 0.03) softness, overall tenderness, chewiness, and rate of breakdown scores, and decreased (P < 0.09) juiciness scores in semitendinosus muscle. Backgrounding increased (P < 0.05) conjugated linoleic acid (CLA), total monounsaturated fatty acids, and 1193 polyunsaturated fatty acid (PUFA), and decreased (P < 0.05) total saturated fatty acids (SFA), and 1196 PUFA content of beef. While the change in quantitative and qualitative fatty acid composition of beef is in line with current dietary recommendations for humans, the magnitude of these changes was minimal. Key words: Beef cattle, diets, carcass composition, fatty acids, longissimus muscle, palatability attributes

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