Analysis of Carcass Quality Grades According to Marketing Year and Carcass Traits in Swine

2021 ◽  
Vol 5 (4) ◽  
Keyword(s):  
Carcass Traits ◽  
Carcass Quality

scholarly journals Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep

2019 ◽  
Vol 32 (1) ◽  
pp. 21-33
Author(s):  
Geisa IF Esteves ◽  
Vanessa Peripolli ◽  
João BG Costa Jr ◽  
Candice B Tanure ◽  
Adriana M Menezes ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Carcass Traits ◽  
Genetic Group ◽  
Carcass Quality ◽  
Genetic Groups ◽  
Omega 6 ◽  
Santa Inês ◽  
Para Determinar

Background: Little information is available on carcass quality in nulliparous and primiparous ewes of different breeds and genetic groups. Objective: To evaluate the effect of genetic group, pregnancy, age and their interactions on carcass traits, meat quality and fatty acid profile in sheep. Methods: Eighty-five Santa Ines ewes and their crosses with Texel, Dorper and Ile de France, aged 12 month were bred with White Dorper rams to assess the influence of pregnancy on carcass composition and meat quality. After weaning, all ewes (nulliparous and primiparous) were fattened for slaughter at 21 months of age. A further 24 six to twenty one-month-old female lambs from the same genetic groups were included in the analysis to determine the fatty acid profile. Results: Genetic group affected muscle and fat weight as well as the eye muscle length. Fat weight, muscle and fat ratios, subcutaneous fat thickness and cooking loss were affected by pregnancy with nulliparous females being fatter. Meat purpose breeds such as Dorper, Texel and Ile de France showed better meat quality compared to the Santa Ines hair breed. Of the 19 identified fatty acids, saturated were present in greater quantities, especially stearic and palmitic. Omega-6 content was influenced by age and pregnancy. Conclusions: Younger and nulliparous females have better carcass quality in terms of fatty acid composition.Keywords: commercial cuts, fat content, meat breeds, ovines, Santa Ines, slaughter age.  Resumen Antecedentes: Existe poca información sobre la calidad de la canal en ovejasjóvenes nulíparas y primíparas de diferentes razas y grupos genéticos. Objetivo: Evaluar la influencia del grupo genético, de la preñez, de la edad y sus interacciones sobre la composición de la canal, calidad de la carne y perfil de ácidos grasos en la carne de ovejas. Métodos: Ochenta y cinco ovejas de 12 meses de edad de raza Santa Inés y sus cruces con Texel, Dorper y Ile de France fueron cruzadas con carneros White Dorper para evaluar la influencia de la gestación sobre la composición de la canal y la calidad de la carne. Después del destete, todas las ovejas (nulíparas y primíparas) fueron engordadas y sacrificadas a los 21 meses de edad. Otras 24 ovejas de seis a veintiún meses de edad del mismo grupo genético fueron incluidas en el análisis para determinar el perfil de ácidos grasos. Resultados: El grupo genético afectó el peso del músculo y de la grasa, como también la longitud del ojo del músculo. El peso de la grasa, porcentajes de músculo y grasa, el grosor de la grasa subcutánea y las perdidas por cocción fueron afectadas por la preñez, siendo más gordas las hembras nulíparas. Los grupos genéticos especializados en producir carne como Dorper, Texel e Ile de France mostraron mejor calidad de carne comparado con la raza Santa Inés. De los 19 ácidos grasos identificados, los saturados estaban presentes en mayores cantidades, especialmente esteárico y palmítico. Los contenidos de Omega-6 fueron influenciados por la edad y la preñez. Conclusiones: Las ovejas más jóvenes y nulíparas tienen mejor calidad de carcasa en términos de composición de ácidos grasos.Palabras clave: contenido de grasa, cortes comerciales, edad de sacrificio, ovinos, razas de carne, Santa Inés.  Resumo Antecedentes: Existe pouca informação sobre a qualidade da carcaça em ovelhas jovens nulíparas e primíparas de diferentes raças e grupos genéticos. Objetivo: Avaliar a influência do grupo genético, da prenhes, da idade e suas interações sobre as características da carcaça, qualidade da carne e perfil de ácidos graxos na carne de ovelhas. Métodos: Oitenta e cinco ovelhas Santa Inês e suas cruzas com Texel, Dorper e Ile de France com 12 meses de idade foram cruzadas com carneiros White Dorper para avaliar a influência da prenhes sobre a composição da carcaça e a qualidade da carne. Após o desmame, todas as ovelhas (nulíparas e primíparas) foram engordadas para serem abatidas aos 21 meses de idade. Mais 24 ovelhas com idade variando entre seis a vinte e um meses do mesmo grupo genético foram incluídas na análise para determinar o perfil de ácidos graxos. Resultados: O grupo genético influenciou os pesos do musculo e da gordura bem como o comprimento da área de olho de lombo. O peso da gordura, a relação músculo e gordura, a espessura de gordura subcutânea e as perdas por cocção foram influenciadas pela prenhes,sendo asfêmeas nulíparas as mais gordas. Os grupos genéticos especializados em produção de carne como o Dorper, o Texel e o Ile de France apresentaram melhor qualidade de carne comparado a raça Santa Inês. Dos 19 ácidos graxos identificados, os presentes em maiores quantidades foram os saturados, principalmente o esteárico e o palmítico. O Conteúdo de ômega 6 foi influenciado pela idade e pela prenhes. Conclusões: As fêmeas jovens e nulíparas apresentam melhor qualidade de carcaça em termos de composição de ácidos graxos.Palavras-chave: conteúdo de gordura, cortes comerciais, idade de abate, ovinos, raças de corte, Santa Inês.

scholarly journals Fattening performance and carcass traits of implanted and supplemented grassfed bulls

2021 ◽  
Vol XXXI (2) ◽  
pp. 53-60
Author(s):  
Nelson Huerta-Leidenz ◽  
Nancy Jerez-Timaure ◽  
Susmira Godoy ◽  
Carlos Rodríguez-Matos ◽  
Omar Araujo-Febres
Keyword(s):  
Fixed Effects ◽  
Random Effect ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Growth Trait ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Fattening Performance ◽  
Mineral Supplementation ◽  
Beneficial Impact

Ninety-nine uncastrated males were randomly distributed into four grazing groups to examine variation in growth and carcass traits, due to the implant regime [Implantation of 72 miligrams (mg) of Ralgro® at day (d) 0 followed by its reimplantation at d 90 versus implantation of Revalor® at d 0 followed by 72 mg of Ralgro® at d 90)], and suplementation type [mineral supplementation (MS) versus strategic supplementation (SS)]. With a 2 x 2 factorial arrangement, the analysis of variance included the treatments and their interaction (implant regimen x supplementation) as fixed effects, and the breed type as a random effect. The interaction was not significant; neither did the implant regimen on any growth trait (P > 0.05). Compared to MS, the SS group had a greater daily weight gain (779 vs. 541 grams; P < 0.001), required a shorter (38.3 d lesser) time of fattening to reach the end point (198.3 versus 236.6 d; P < 0.001) with a heavier liveweight (498. 2 vs. 474. 4 kilograms; P = 0.02) at an earlier age (29.4 vs. 30.­8 months; P < 0.001), with a higher carcass dressing percentage (59.13 vs 57.62 %; P = 0.03) and younger carcass bone maturity (P < 0.001). With the exception of thoracic depth, carcass traits did not vary with the implant regimen (P > 0.05). The use of aggressive implant regimens to improve growth or carcass characteristics of grazing bulls is not justified. SS is a feasible practice to improve fattening performance of grazing bulls but no beneficial impact on their carcass quality was expected.

The heritability of carcass traits in British bacon pigs

1957 ◽  
Vol 1957 ◽  
pp. 49-69 ◽  
Author(s):  
J. W. B. King
Keyword(s):  
Great Britain ◽  
Food Intake ◽  
Body Length ◽  
Carcass Traits ◽  
Carcass Quality ◽  
Restricted Feeding ◽  
Feeding Experiments ◽  
Comprehensive Survey

The need for the improvement of carcass quality in bacon pigs is generally accepted; the means whereby this improvement may be brought about is open to argument. Many experiments, particularly in Great Britain those of McMeekan (1940-41) and Mansfield, Trehane and Peacock (1937), have shown that carcass quality may be improved by the restriction of food intake during the later stages of fattening. However, Lucas and Calder (1956) conclude, from a comprehensive survey of published feeding experiments and their own results, that only small improvements in fat measurements and body length can be achieved by restricted feeding unless the age at slaughter is delayed by periods which are unacceptable to the farmer.

Correlations between weaning weight, carcass traits and ultrasonic body measurements in Welsh Mountain sheep

1998 ◽  
Vol 1998 ◽  
pp. 84-84 ◽  
Author(s):  
M. Saatci ◽  
I. Ap Dewi ◽  
Z. Ulutas
Keyword(s):  
Litter Size ◽  
Carcass Traits ◽  
Carcass Quality ◽  
Body Measurements ◽  
Production Traits ◽  
Ultrasonic Scanning ◽  
Breeding Group ◽  
Genetic And Phenotypic Correlations ◽  
Mature Size ◽  
Lamb Growth

Selection in the CAMDA breeding group for Welsh Mountain sheep has been based since the start of the scheme on an index that includes litter size, maternal ability, lamb growth and mature size. Since 1987 fat and muscle depths have also been recorded in candidate replacement rams by ultrasonic scanning. Current consumer pressure to improve carcass quality suggests that emphasis be placed on developing an index that incorporates scanning results with other production traits. Construction of such an index requires estimates of the genetic and phenotypic correlations between traits in the selection objectives and criteria. Analyses were conducted to estimate these parameters based on data recorded in the nucleus of the CAMDA breeding group.

scholarly journals Effects of dietary threonine on growth performance and carcass traits of Yangzhou geese

2010 ◽  
Vol 55 (No. 9) ◽  
pp. 382-387 ◽  
Author(s):  
S.R. Shi ◽  
Z.Y. Wang ◽  
J.M. Zou ◽  
H.M. Yang ◽  
N. Jiang
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Dose Response ◽  
Feed Intake ◽  
Carcass Traits ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Quadratic Effect ◽  
Large Margin ◽  
Dietary Treatments

&nbsp;A dose-response experiment with 5 total dietary threonine (Thr) levels (0.54, 0.64, 0.74, 0.84 and 0.94%) was conducted to study the effect of dietary Thr on growth performance and carcass traits of Yangzhou geese from 0 to 8 weeks of age. Three hundred 1-day-old Yangzhou goslings were randomly allocated to 15 pens with 20 birds (10 males and 10 females) per pen according to similar pen weight. There were 5 dietary treatments, consisting of 3 replicate pens. Weight gain, feed intake and feed/gain of geese from each pen were measured at 2-week intervals from 0 to 8 weeks. At 56 days of age, four geese (2 males and 2 females) were selected randomly from each pen and slaughtered to evaluate the carcass quality. The results showed that an increase in dietary Thr resulted in an increase and then a decrease in daily weight gain in both periods. Peak daily weight gain responses appeared in geese fed the 0.74%Thr diet in both periods (36.120 and 61.96 g, respectively). Thr supplementation significantly affected feed/gain in the 0&ndash;4 week period (P &le; 0.045) and daily feed intake in the 5&ndash;8 week period (P &le; 0.012). No significant linear or quadratic responses from Thr supplementation were observed in growth performance and carcass traits of geese except for eviscerated carcass percentage (quadratic effect, P &le; 0.016). The optimal Thr requirement of Yangzhou geese from 0 to 8 weeks of age was 0.726% for eviscerated carcass percentage. The results of our experiment reported herein would document that the Thr requirements suggested by NRC (1994) for geese up to 8 weeks of age are safe estimates; they may slightly overestimate the requirements but not by a large margin.

scholarly journals 213 Genomic selection of carcass quality traits in crossbred pigs using a reference population

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 41-41
Author(s):  
Matteo Bergamaschi ◽  
Christian Maltecca ◽  
Clint Schwab ◽  
Justin Fix ◽  
Francesco Tiezzi
Keyword(s):  
Fixed Effects ◽  
Carcass Traits ◽  
Predictive Ability ◽  
Reference Population ◽  
Single Step ◽  
Carcass Quality ◽  
Quality Traits ◽  
Single Gender ◽  
Training Set ◽  
Crossbred Pigs

Abstract The objective of this work was to evaluate the predictive ability of different models applied to carcass traits in crossbred pigs. The pigs were divided in 2 finishing flows: A=36,110 and B=95,041 animals, and were progeny of 386 sires (almost entirely genotyped with the 60k SNP chip). In flow A, individuals were housed into single-sire single-gender pens, and split-marketing on a pen basis was applied. In flow B, individuals were kept in standard commercial conditions and split-marketing on an individuals basis was applied. A dataset containing individual records of three carcass traits: back-fat (BF), loin depth (LD), and carcass daily gain (CACG) was used. Data from flow A were divided into training and validation sets on the basis of contemporary groups (8 in training and 1 in testing). Variance components and solutions were obtained using the BLUPF90 suite of programs. Models included fixed effects (dam line, sow parity, sex, cross fostering, and contemporary group) and random effects (additive genetic, batch, litter, and residual). Models tested were univariate vs multivariate and pedigree vs single-step. The addition of flow B records to the training set was evaluated, by including or excluding these records. Heritabilities were 0.68±0.023 for BF, 0.47±0.018 for LD, and 0.55±0.023 for CACG. CACG gain was correlated with BF (0.43±0.029) and LD (0.39±0.03). Low genetic correlation was found between BF and LD (0.17±0.034). Prediction accuracies were 0.39±0.05, 0.17±0.06, and 0.13±0.03 for BF, LD, and CACG respectively. The mean accuracy of BF, LD, and CG increased (~6%) when records from flow B were included in the training set, whereas the increase of accuracy between models (univariate vs multivariate) was not significant. The inclusion of sire genotypes did not improve prediction accuracy significantly. Based on these results, the prediction of carcass quality traits in crossbred pigs is possible.

Correlations between weaning weight, carcass traits and ultrasonic body measurements in Welsh Mountain sheep

1998 ◽  
Vol 1998 ◽  
pp. 84-84
Author(s):  
M. Saatci ◽  
I. Ap Dewi ◽  
Z. Ulutas
Keyword(s):  
Litter Size ◽  
Carcass Traits ◽  
Carcass Quality ◽  
Body Measurements ◽  
Production Traits ◽  
Ultrasonic Scanning ◽  
Breeding Group ◽  
Genetic And Phenotypic Correlations ◽  
Mature Size ◽  
Lamb Growth

Selection in the CAMDA breeding group for Welsh Mountain sheep has been based since the start of the scheme on an index that includes litter size, maternal ability, lamb growth and mature size. Since 1987 fat and muscle depths have also been recorded in candidate replacement rams by ultrasonic scanning. Current consumer pressure to improve carcass quality suggests that emphasis be placed on developing an index that incorporates scanning results with other production traits. Construction of such an index requires estimates of the genetic and phenotypic correlations between traits in the selection objectives and criteria. Analyses were conducted to estimate these parameters based on data recorded in the nucleus of the CAMDA breeding group.

Heritability and correlation estimates of Warner-Bratzler shear force and carcass traits from Angus-, Charolais-, Hereford-, and Simmental-sired cattle

2004 ◽  
Vol 84 (4) ◽  
pp. 599-609 ◽  
Author(s):  
J. A. Minick ◽  
M. E. Dikeman ◽  
E. J. Pollak ◽  
D. E. Wilson
Keyword(s):  
Beef Cattle ◽  
Key Words ◽  
Shear Force ◽  
Genetic Parameters ◽  
Carcass Traits ◽  
Genetic Correlations ◽  
Carcass Weight ◽  
Carcass Quality ◽  
Marbling Score ◽  
Ribeye Area

Heritabilities and correlations of Warner-Bratzler shear force (WBSF), marbling score (MS), hot carcass weight (HCW),12–13th rib-fat (FAT), and ribeye area (REA) were calculated from 3360 Angus-, Charolais-, Hereford-, and Simmental-sired cattle in the C attleman’s Beef Board Carcass Merit Project. The heritabilities (± SE) for WBSF, MS, HCW, FAT, and REA were 0.34 ± 0.25, 0.43 ± 0.28, 0.73 ± 0.35, 0.16 ± 0.19, and 0.56 ± 0.31 in Angus; 0.43 ± 0.22, 0.30 ± 0.18, 0.21 ± 0.16, 0.35 ± 0.20, and 0.23 ± 0.16 in Charolais; 0.12 ± 0.11, 0.55 ± 0.22, 0.20 ± 0.14, 0.25 ± 0.15 and 0.34 ± 0.17 in Hereford; and 0.16 ± 0.14, 0.44 ± 0.20, 0.45 ± 0.20, 0.23 ± 0.16, and 0.30 ± 0.18 in Simmental. The genetic correlations, averaged across analysis type, for WBSF-MS, WBSF-HCW, WBSF-FAT, WBSF-REA, MS-HCW, MS-FAT, MS-REA, HCW-FAT, HCW-REA, and FAT-REA were -0.17, 0.32, -0.23, 0.30, 0.10, -0.17, 0.39, -0.15, 0.68, and -0.86 in Angus; -0.42, 0.77, 0.52, -0.05, -0.44, -0.22, -0.19, 0.66, -0.05, and -0.24 in Charolais; -0.43, -0.04, -0.33, 0.09, 0.08, 0.79, -0.14, -0.26, 0.50, and -0.38 in Hereford; and 0.55, 0.08, 0.62, -0.08, 0.30, 0.61, -0.14, 0.06, 0.65, and -0.48 in Simmental. Key words: Beef cattle, genetic parameters, carcass quality, tenderness

Genetic aspects of growth and carcass quality in veal calves

1969 ◽  
Vol 11 (1) ◽  
pp. 43-45 ◽  
Author(s):  
C. J. M. Hinks ◽  
B. Bech Andersen
Keyword(s):  
Genetic Improvement ◽  
Genetic Parameters ◽  
Carcass Traits ◽  
Performance Testing ◽  
Carcass Quality ◽  
Progeny Testing ◽  
Genetic Incompatibility ◽  
Body Dimensions ◽  
Veal Calves ◽  
Heritability Estimates

SUMMARYGenetic parameters of veal calves were estimated from data on 510 Danish Red male calves by 39 sires.Heritability estimates for the growth and carcass traits were low, those for body dimensions and dressing percentage high.Correlations between the growth and carcass traits indicated no genetic incompatibility in selection.The problem of achieving simultaneous improvement in the dairy, carcass and growth qualities is discussed. It is suggested that the adoption of performance testing for growth and carcass quality prior to the entry of bulls into AI service, followed by progeny testing for milk and fat yields, would provide the best method of genetic improvement.

scholarly journals Carcass traits and internal organs of broiler chickens as influenced by coffee weed (Senna occidentalis) leaf ethanolic extract

2020 ◽  
Vol 46 (5) ◽  
Author(s):  
S. O. Omoikhoje ◽  
M. O. Okooza ◽  
R. O. Okeje ◽  
F. E. Peter-Paul
Keyword(s):  
Broiler Chickens ◽  
Carcass Traits ◽  
Live Weight ◽  
Ethanolic Extract ◽  
Carcass Quality ◽  
Internal Organs ◽  
Organ Weights ◽  
Treatment Groups ◽  
Randomized Design ◽  
Completely Randomized Design

Carcass traits and internal organs of one hundred and twenty, one day-old broiler chicksmaintained on different dosages of coffee weed leaf ethanolic extract for eight weeks werestudied. Five dosages (0, 25, 50, 75 and 100mL) of coffee weed leaf ethanolic extract(CWLEE) per litre of drinking water (T1 T2 , T3 , T4 and T5 ) were used. The birds were allocated \to the various treatment groups in a completely randomized design (CRD) with each treatment replicated three times (8 birds per replicate). Data on carcass traits revealed that live weight (2.50kg/bird), defeathered (2.30kg/bird) and eviscerated (2.00kg/bird) weights as well as dressing percentage (81.69%) were significantly (P<0.5) higher among birds on 50mL of CWLEE compared to those on other treatment groups. Similarly, the relative weights of drumstick (16.60%) and thigh (22.28%) were also significantly (P<0.05) better in broiler chickens administered 50mL CWLEE. Relative organ weights of broiler showed that weight of heart, lungs, gizzard, bursa, spleen and kidney were significantly (P < 0.05) influenced by the treatments. It is therefore inferred that birds administered 50mL CWLEE gave better carcass quality and functioning of the vital organs and therefore can be recommended for broiler chickens.

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