scholarly journals Preliminary observations on carcass traits and meat yield of five types of Brahman-influenced grass-fed bulls

2021 ◽  
Vol 29 (1-2) ◽  
pp. 67-77
Author(s):  
Tomas Riera Sigala ◽  
Nelson O. Huerta Leidenz ◽  
Nancy C Jerez Timaure ◽  
Argenis Rodas Gonzalez ◽  
Jorge A. Ordonez Vela ◽  
...  
Keyword(s):  
Linear Model ◽  
Frequency Distribution ◽  
Carcass Traits ◽  
Linear Measurements ◽  
Meat Yield ◽  
Breed Type ◽  
Quality Grade ◽  
Carcass Performance ◽  
The U.S

Benefitingfrominterventionsof thesavannaecosystem, breedersinLosLlanosof ApureState(Venezuela) are exploring the opportunity to improve cattle genetics by implementing crossbreeding programs.Fifty bulls (23 months of age) of five types of Brahman influence [Brahman (n =10), F1 Angus x Brahman (F1­Angus; n = 10), F1 Chianina x Brahman (F1­Chianina; n = 10), F1 Romosinuano x Brahman (F1­Romosinuano; n =10), and F1 Simmental x Brahman (F1­Simmental; n = 10)] were selected to be compared in carcass performance(linear measurements, quality and quantity indicators, Venezuelan and U.S. grades, and cutability) at a desirableconformation endpoint with a suitable market weight of 480 kg. An ANOVA­covariance was performed using thegeneralized linear model and frequency distribution of Venezuelan and U.S. grades by breed type were comparedusing theχ2test (P < 0.05). Shorter Brahman carcasses exhibited the most abundant finish, significantly differentfromthe longer F1­Simmental and F1­Romosinuano counterparts. All carcasses fell into the Ayoungest maturityand were eligible for the USDA"Bullock" class designation; 62%reached the top Venezuelan quality grade, 96%graded U.S. Standard and 64%reached the U.S. yield grade 1, indicating superior cutability. Significant differences(P<0.05)in yieldof individual cuts (ribeye +striploin, andcuts fromthe round) were detectedbetween F1­Romosinuano and Brahman, F1­Angus, and F1­Chianina counterparts. F1­Chianina bulls had slight but significant(P<0.05) advantages inyieldof high­valuedboneless cuts as comparedtothose of F1­RomosinuanoandF1­Simmental counterparts. Conversely, F1­RomosinuanooutperformedF1­Chianina in1.73 %of medium­valuedboneless cuts (P<0.05).Under the sample selectioncriteria andharvest endpoint, slight changes incarcassperformance can be expected fromcrossbreeding.

scholarly journals 265 Evaluation of the genetic relationship amongst high elevation pulmonary arterial pressure, feedlot and carcass performance traits

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 197-197
Author(s):  
Emma A Briggs ◽  
Scott Speidel ◽  
Mark Enns ◽  
Milt Thomas ◽  
Tim Holt
Keyword(s):  
Arterial Pressure ◽  
Genetic Relationship ◽  
Feed Intake ◽  
Pulmonary Arterial Pressure ◽  
Carcass Traits ◽  
Genetic Correlations ◽  
High Elevation ◽  
Pulmonary Arterial ◽  
Carcass Performance ◽  
Moderate Elevation

Abstract The objective of the study was to evaluate if a genetic relationship exists between pulmonary arterial pressure (PAP) measured at high elevation with traits associated with moderate elevation feedlot and carcass traits. For this analysis, PAP, feed intake, and carcass data were taken from 6,898, 558, and 1,627 animals, respectively. At an elevation of 2,115 m, PAP measurements were collected, then a selective group of steers was relocated to a moderate elevation feedlot (1,500 m) where feed intake data were collected. Genetic relationships were evaluated with 5-trait animal models using REML statistical analysis. For all traits in the analysis, fixed effects and contemporary groups were assigned as well as a direct genetic random effect. For weaning weight, a maternal permanent environmental effect was applied in the analysis. For PAP, the heritability estimate was 0.29 ± 0.03. Genetic correlations between PAP with feedlot traits was positive, with estimates of 0.34 ± 0.20 (average dry matter intake) and 0.05 ± 17 (average daily gain). The strongest genetic correlation between PAP and carcass performance traits were those of rib eye area (-0.30 ± 0.12) and calculated yield grade (0.29 ± 0.13). Genetic correlations between PAP and marbling score, back fat, or hot carcass weight were 0.00 ± 0.13, -0.07 ± 0.13, and 0.14 ± 0.10, respectively. These results suggest a favorable genetic relationship exists between PAP with feedlot and carcass traits.

scholarly journals Estimation of environmental effects and genetic parameters of carcass traits on Chikso (Korean brindle cattle)

2020 ◽  
Vol 33 (4) ◽  
pp. 525-530 ◽  
Author(s):  
Byoungho Park ◽  
Tae Jeong Choi ◽  
Mi Na Park ◽  
Sang-Hyon Oh
Keyword(s):  
Linear Model ◽  
Environmental Effects ◽  
Genetic Parameters ◽  
Coat Color ◽  
Carcass Traits ◽  
National Level ◽  
Pedigree Information ◽  
Small Scale ◽  
Muscle Area ◽  
Eye Muscle

Objective: The purpose of this study was i) to identify the characteristics of carcass traits in Chikso by gender, region, age at slaughter, and coat color using the carcass data collected from the nationwide pedigree information and coat color investigation, and ii) to estimate genetic parameters for breed improvement.Methods: A linear model was used to analyze the environmental effects on the carcass traits and to estimate genetic parameters. Analysis of variance was performed using TYPE III sum of squares for the unbalanced data provided by the general linear model procedure. Variance components for genetic parameters was estimated using REMLF90 of the BLUPF90 family programs.Results: Phenotypic performance of carcass weight (CW), eye muscle area (EMA), and backfat thickness (BF) in Chikso were lower than those of Hanwoo. This is a natural outcome because Hanwoo have undergone significant efforts for improvement at the national level, a phenomenon not observed in Chikso. Another factor influencing the above outcome was the smaller population size of Chikso compared to that of Hanwoo’s. The heritabilities of CW, EMA, BF, and marbling score in Chikso were estimated as 0.50, 0.37, 0.35, and 0.53, respectively, which were was higher than those of Hanwoo.Conclusion: Based on the genetic parameters that were estimated in this study, it is expected that the carcass traits will improve when the livestock research institutes at each province conduct small-scale performance tests and the semen is provided to farmers after selecting proven bulls using the state-of-art selection technique such as genomic selection.

Effect of breed-type and feeding regimen on goat carcass traits.

1999 ◽  
Vol 77 (12) ◽  
pp. 3215 ◽  
Author(s):  
J S Oman ◽  
D F Waldron ◽  
D B Griffin ◽  
J W Savell
Keyword(s):  
Carcass Traits ◽  
Breed Type ◽  
Feeding Regimen

scholarly journals 7. Associations between Polymorphisms in the DIO3 Gene and Reproductive Traits and Carcass Performance in Pigs

2016 ◽  
Vol 16 (2) ◽  
pp. 399-413
Author(s):  
Maria Oczkowicz ◽  
Anna Dunkowska ◽  
Katarzyna Piórkowska ◽  
Aurelia Mucha ◽  
Mirosław Tyra ◽  
...  
Keyword(s):  
Association Study ◽  
Candidate Gene ◽  
Carcass Traits ◽  
Reproductive Traits ◽  
Large White ◽  
The Third ◽  
Large White Breed ◽  
Population Average ◽  
White Breed ◽  
Carcass Performance

Abstract Recently, DIO3 gene has been proposed as a candidate gene for litter size in pigs. Moreover, it was shown that polymorphism in this gene is associated with carcass traits. In this study we identified several SNPs within coding sequence of DIO3 by HRM method and performed association study between two polymorphisms and reproductive and carcass traits in pigs bred in Poland. Analysis of 350 pigs of Landrace and Large White breed revealed several significant associations for rs80999359, like period between the second and third parities (2IP)(P<0.0008) in the whole population, period between the third and fourth parities (3IP) (P<0.022), number of piglets born alive (L3NBA) (P<0.0084) and number of piglets at 21 days (L3NB21d) (P<0.0176) at the third parity in Large White as well as period between the second and third parities (2IP) (P<0.0012) in Landrace breed. The second polymorphism (rs80983654) was associated with 1IP (P<0.0218), number of piglets born alive at the fourth parity (L4NBA, P<0.027), number of piglets at 21 day at the fourth litter (L4NB21d, P<0.01), in the whole population, average number of piglets born alive (ANBA, P<0.01250), average number of piglets at 21 day (ANB21d, P<0.009), average interparity period (AIP, P<0.016), age at the first parity (1AP, P<0.003), (1IP, P<0.001, L4NBA, P<0.017, L4NB21d, P<0.005) in Large White breed. In contrast, we have found only few associations between DIO3 polymorphisms and carcass traits. rs80999359 was associated with backfat thickness (p<0.01) while rs80983654 with the weight of ham. Our results suggest that polymorphisms within DIO3 gene may be associated with reproductive traits.

Carcass traits and saleable meat yield of alpacas (Vicugna pacos) in Australia

Meat Science ◽  
2015 ◽  
Vol 107 ◽  
pp. 1-11 ◽  
Author(s):  
M.A. Smith ◽  
R.D. Bush ◽  
P.C. Thomson ◽  
D.L. Hopkins
Keyword(s):  
Carcass Traits ◽  
Meat Yield ◽  
Vicugna Pacos

Slaughter and carcass traits of calves from first-cross and reciprocal back-cross beef cows

1994 ◽  
Vol 74 (4) ◽  
pp. 621-632 ◽  
Author(s):  
J. A. Newman ◽  
A. K. W. Tong ◽  
S. D. M. Jones ◽  
G. W. Rahnefeld ◽  
D. R. C. Bailey ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Key Words ◽  
Carcass Traits ◽  
Beef Cows ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Back Cross ◽  
Breed Type ◽  
Bone Content

Breed-of-dam and sex-of-calf effects are reported based on observation of 2007 heifer and steer carcasses. The carcasses were derived from Limousin-sired calves born to dams representing 15 F1 and backcross genotypes reared at two locations over a period of 5 yr. The calves represented Hereford × Angus, Charolais × Shorthorn, Simmental × Shorthorn and all backcross combinations involving Charolais or Simmental with Hereford, Angus or Shorthorn. Carcass traits were analyzed on an unadjusted, a constant hot-carcass weight, and a constant rib-fat depth basis. The slaughter criteria dictated that steers were heavier at slaughter than heifers. They also exhibited higher dressing yield, greater longissimus thoracis area, and lower fat depth. Charolais and Simmental breeding was associated with less rib fat depth, greater longissimus thoracis area, a higher proportion of preferred cuts, less dissectible fat, more bone and more lean in the preferred cuts than British beef breeding. Within the European (Charolais and Simmental) and British beef (Hereford, Angus and Shorthorn) breed groups, breed effects were smaller, but for carcass composition traits they were frequently significant. When compared with Simmental, Charolais breeding tended to be associated with less marbling, less rib fat depth, less dissectible fat and more lean in the preferred cuts. Among the British beef breeds, Hereford was associated with the highest proportion of preferred cuts, Shorthorn with the lowest rib fat depth — but the highest dissectible fat — and Angus with the most marbling, the greatest longissimus thoracis area and the lowest bone content. This research has demonstrated that breed effects for carcass composition traits tend to be additive and that a significant effect may be associated with substitution of as little as one-eighth of the breed composition. Key words: Beef cattle, slaughter traits, carcass traits, breed type, crossbred dam, backcross dam

scholarly journals Price Dependence between Different Beef Cuts and Quality Grades: A Copula Approach at the Retail Level for the U.S. Beef Industry

2016 ◽  
Vol 14 (1) ◽  
Author(s):  
Dimitrios Panagiotou ◽  
Athanassios Stavrakoudis
Keyword(s):  
Beef Industry ◽  
Statistical Tool ◽  
Monthly Data ◽  
Empirical Results ◽  
Quality Grade ◽  
Copula Approach ◽  
The Usa ◽  
The U.S

AbstractThe objective of this study is to assess the degree and the structure of price dependence between different cuts of the beef industry in the USA. This is pursued using the statistical tool of copulas. To this end, it utilizes retail monthly data of beef cuts, within and between the quality grades of Choice and Select, over the period 2000–2014. For the Choice quality grade, there was evidence of asymmetric price co-movements between all six pairs of beef cuts under consideration. No evidence of asymmetric price co-movements was found between the three pairs of beef cuts for the Select quality grade. For the pairs of beef cuts formed between the Choice and Select quality grades, the empirical results point to the existence of price asymmetry only for the case of the chuck roast cut.

Effect of zeranol on fat deposition and carcass traits in beef heifers

1992 ◽  
Vol 72 (4) ◽  
pp. 965-968 ◽  
Author(s):  
B. D. King ◽  
R. D. Bergen ◽  
J. J. McKinnon ◽  
R. D. H. Cohen ◽  
R. N. Kirkwood
Keyword(s):  
Key Words ◽  
Carcass Traits ◽  
Fat Deposition ◽  
Carcass Weight ◽  
Beef Heifers ◽  
Marbling Score ◽  
Meat Yield ◽  
Lean Meat ◽  
Beef Heifer

Non-pregnant beef heifers implanted with zeranol at birth and at 100 and 200 d of age were fed a finishing ration for 78 d to slaughter at 21–22 mo of age. Rate of fat deposition, grade fat and marbling score were less (P < 0.05) and carcass weight, rib-eye area and lean-meat yield were greater (P < 0.05) for implanted heifers than for non-implanted heifers. Key words: Zeranol, ultrasound, fat deposition, carcass, beef heifer

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