Genetic and environmental effects on the muscle structure response post-mortem

Thompson, J. M.; Perry, Diana; Daly, Briana Louise; Gardner, G.E.; Johnston, David; Pethick, D.W.

doi:10.1016/j.meatsci.2006.04.022

Cited by 62 publications

(40 citation statements)

References 41 publications

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“…The effect of LTpH6 for other cuts was smaller and not statistically significant. These results are consistent with the predictions of Thompson et al (2006), which showed tenderness scores of Achilles-hung, but not tenderstretched, LM are related to temperature at pH 6.…”

Section: Discussionsupporting

confidence: 91%

Production and processing studies on calpain-system gene markers for beef tenderness: Consumer assessments of eating quality1

Robinson

Café

McIntyre

et al. 2012

Journal of Animal Science

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ABSTRACT:We investigated the effects of calpainsystem genetic markers on consumer beef quality ratings, including interactions of marker effects with hormonal growth promotant (HGP) use and tenderstretch hanging. Brahman cattle in New South Wales (NSW; n = 164) and Western Australia (WA; n = 141) were selected at weaning from commercial and research herds to achieve balance and divergence in calpastatin (CAST) and calpain 3 (CAPN3) gene marker status. Genotypes for μ-calpain (CAPN1-4751 and CAPN1-316) were also determined. Angus cattle (49 in NSW, 17 in WA) with favorable CAST and CAPN3 alleles, balanced for CAPN1-316 status, were also studied. Half the cattle at each site had HGP (Revalor-H, containing 200 mg trenbolone acetate and 20 mg 17β-estradiol) implants during grain fi nishing. One side of each carcass was suspended from the Achilles tendon (AT) and the other from the pelvis [tenderstretch (TS)]. Meat Standards Australia consumer panels scored 7-d aged striploin steaks from both AT and TS sides, and 7-d aged rump and oyster blade steaks from the AT side of each carcass. Two favorable CAST alleles increased tenderness ratings of AT-striploin, TS-striploin, rump, and oyster blade steaks by, respectively, 6.1, 4.2, 4.2, and 3.1 units, and overall liking by 4.7, 2.8, 2.9, 3.7 (all P < 0.04). Two favorable CAPN1-4751 alleles increased tenderness of AT-striploin, TS-striploin, and rump steaks by 6.5, 4.3, and 3.9 units, and overall liking by 5.6, 3.1, and 4.1 units. Two favorable CAPN3 alleles improved rump steaks by 3.7, 3.3, 3.7, and 3.5 units, for tenderness, juiciness, liking the fl avor, and overall liking. There were no signifi cant CAPN1-316 effects. The effect of HGP was greatest for the AT-striploin (reducing tenderness and overall liking by 8.2 units, P < 0.001), then TS-striploin (-5.6 for tenderness, -5.0 for overall liking, P < 0.001), and then rump (-4.4 for tenderness, -3.3 for overall liking, P < 0.007). Processing conditions differed considerably between NSW and WA. Rump steaks from NSW scored about 10 units greater than those from WA, but Angus and Brahman steaks from the same location with the same marker alleles had similar scores. In contrast, NSW Angus striploin steaks scored about 15 units greater for tenderness and overall liking (P < 0.001) than cattle with the same marker alleles at the other 3 location × breed combinations, which had generally similar scores. Therefore, calpain-system gene markers have benefi cial effects on eating quality, consistent with our previous fi ndings for objective meat quality.

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Section: Discussionsupporting

confidence: 91%

Production and processing studies on calpain-system gene markers for beef tenderness: Consumer assessments of eating quality1

Robinson

Café

McIntyre

et al. 2012

Journal of Animal Science

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“…In the present study, WBSF was lower for HF bulls, representing a real breed difference, which was apparent despite correction of data to constant pH u . It is well established that chilling rate, particularly the temperature at which carcasses go into rigour, is a major factor influencing eating quality (Thompson et al, 2006). However, the similar carcass fat parameters recorded indicate that temperature decline within muscles would be expected to be similar between the breeds in the present study.…”

Section: Discussionmentioning

confidence: 50%

Beef production potential of Norwegian Red and Holstein-Friesian bulls slaughtered at two ages

Kirkland

Patterson

Keady

et al. 2007

Animal

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There is a paucity of data on the beef production potential of Norwegian Red (NOR) compared with 'modern' Holstein-Friesian (HF) cattle. The present study used a total of 64 bulls in a 2 3 2 factorial design study encompassing two breeds (HF and NOR) and two slaughter ages (485; E, and 610; L, days). The mean initial age and live weight of the HF bulls were 179 (s.d. 47.1) days and 203 (s.d. 64.0) kg, while the corresponding data for the NOR bulls were 176 (s.d. 39.7) days and 185 (s.d. 63.6) kg, respectively. Bulls were offered a 50 : 50 mixture (dry matter (DM) basis) of grass silage and concentrates. No breed 3 slaughter group interactions were recorded for any parameters evaluated (P . 0.05). HF bulls had higher (P , 0.001) DM intake and poorer (P , 0.01) efficiency of conversion of food to carcass gain than NOR bulls. HF bulls tended (P 5 0.07) to have a higher rate of live-weight gain and were heavier (P , 0.001) at slaughter than NOR bulls, though both carcass weight and rate of carcass gain did not differ between the breeds (P . 0.05). NOR bulls had higher (P , 0.001) dressing proportion and carcass conformation score than HF bulls, while breed of bull had no influence (P . 0.05) on carcass fat classification, depth of subcutaneous fat, marbling score or on the weight of fat in the internal depots. Daily food intakes did not differ (P . 0.05) across the two slaughter age groups, though efficiency of conversion of food to carcass gain was poorer (P , 0.05) in the L compared with E bulls. Rate of live-weight gain was lower (P , 0.01) for L bulls, although rate of carcass gain did not differ (P . 0.05) between the E and L bulls. Increasing age at slaughter increased (P , 0.01 or greater) dressing proportion, carcass fat class, depth of subcutaneous fat, marbling score and internal fat depots, but had no effect (P . 0.05) on the carcass conformation score. Instrumental measures of meat quality indicated that meat from NOR bulls was tougher (P , 0.01) than meat from HF bulls, while delaying slaughter increased (P , 0.001) a* and C* ab , and decreased (P , 0.01) h 0 , indicating improved redness. It is concluded that NOR bulls have higher food efficiency and produce more highly conformed carcasses than HF bulls, but HF bulls produce more tender meat.

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“…The differences in the degree of muscularity, age and physiological action of the calpain-calpastatin enzyme complex are mainly responsible for the variation in tenderness of lamb meat (Thompson et al, 2006). Teixeira et al (2005) showed objective differences (p<0.01) in meat tenderness between Bragançano (7.8 Kg/cm 2 ) and Mirandesa (6.8 Kg/cm 2 ) sheep breeds.…”

Section: Breedmentioning

confidence: 97%

“…The study of gene influence on meat quality is recent and its implications are still poorly understood (Thompson et al, 2006). In sheep, the main set of genes (loci of quantitative traits) affecting carcass characteristics and meat are: Callipyge, Carwell or rib eye muscling (REM), Double muscling (Cockett et al, 2005).…”

Section: Genesmentioning

confidence: 99%

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Intrinsic factors affecting sheep meat quality: a review

Júnior

Carvalho

Silva

et al. 2016

Rev Colomb Cienc Pecu

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SummaryThe quality of meat is a multifactorial parameter dependent on the perspective and goals of the link in the production chain. Generally, a variety of factors directly or indirectly affect the quality characteristics of meat and, therefore, the value of meat products. Often, the literature divides the interfering factors into intrinsic and extrinsic. Intrinsic factors are related to animals; therefore, intrinsic factors are less variable. These factors include breed, sex, age, weight, genes, and type of muscle fiber. Some of these factors are not well studied, others have variable influence or are controversial and only a few are known and sometimes controlled. Thus, this study aimed to review some intrinsic factors that influence the quality of lamb meat. Keywords: cooking losses, meat color, tenderness, water holding capacity. ResumenLa calidad de la carne es un parámetro multifactorial que depende de la perspectiva y los objetivos del eslabón de la cadena de producción. En general, una amplia variedad de factores afectan directa o indirectamente la calidad de la carne y, en consecuencia, los valores de los productos cárnicos. A menudo, la literatura divide los factores que interfieren intrínseca y extrínsecamente. Los factores intrínsecos están relacionados con los animales, por lo tanto, son menos variable. Estos factores incluyen la raza, el género, la edad, el peso, los genes y ResumoA qualidade da carne é um parâmetro multifatorial, dependente da perspectiva e objetivos do elo da cadeia produtiva. Geralmente, uma grande variedade de fatores afetam direta ou indiretamente as características de qualidade da carne e, consequentemente, os valores dos produtos cárneos. Frequentemente, a literatura divide os fatores interferentes em intrínsecos e extrínsecos. Os fatores intrínsecos são referentes ao animal e, portanto, menos variáveis. Esses fatores incluem raça, sexo, idade, peso, genes e tipo de fibras musculares. Alguns desses fatores não estão bem estudados, outros têm influência variável ou controvertida e somente alguns são conhecidos e, às vezes, controlados. Dessa forma, objetivou-se revisar alguns fatores intrínsecos que influenciam na qualidade da carne ovina.Palavras chave: capacidade de retenção de água, cor da carne, maciez da carne, perdas por cocção.

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Genetic and environmental effects on the muscle structure response post-mortem

Cited by 62 publications

References 41 publications

Production and processing studies on calpain-system gene markers for beef tenderness: Consumer assessments of eating quality1

Production and processing studies on calpain-system gene markers for beef tenderness: Consumer assessments of eating quality1

Beef production potential of Norwegian Red and Holstein-Friesian bulls slaughtered at two ages

Intrinsic factors affecting sheep meat quality: a review

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