Evaluation of carcass characteristics of Bos indicus and tropically adapted Bos taurus breeds selected for postweaning weight

Bonilha, Sarah Figueiredo Martins; Tedeschi, L. O.; Packer, Irineu Umberto; Razook, Alexander George; Alleoni, Guilherme Fernando; Nardon, Romeu Fernandes; Resende, Flávio Dutra de

doi:10.2527/jas.2007-0507

Cited by 36 publications

(31 citation statements)

References 27 publications

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“…Shear force at 14 and 21 days of postmortem aging (Table 1) is similar to that described by Bonilha et al (2008), which found 4.56 and 4.53 for selected and non-selected Nellore, respectively. It is important to note that there is large variance for this trait in Nellore cattle.…”

Section: Descriptive Analysissupporting

confidence: 71%

Association of SNPs on CAPN1 and CAST genes with tenderness in Nellore cattle

Pinto¹,

Ferraz²,

Meirelles³

et al. 2010

Genet. Mol. Res.

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ABSTRACT. We examined whether single-nucleotide polymorphisms (SNPs) in the calpain (CAPN) and calpastatin (CAST) genes, described from Bos primigenius taurus, are polymorphic in Nellore cattle. We also looked for a possible association of linkage disequilibrium of this polymorphism with tenderness of the longissimus dorsi muscle after 7, 14 and 21 days of postmortem aging in 638 purebred Nellore bulls. Meat tenderness was measured as Warner-Bratzler shear force. Additive and dominance effects were tested for SNPs of the three genotypic classes; the substitution effect was tested for SNPs with missing genotypic classes. Genotypic and gene frequencies were also calculated for the different SNPs. An increase in tenderness was observed from 7 to 21 days; the average values for shear force at 7, 14 and 21 days of aging were 5.92 ± 0.06, 4.92 ± 0.05, and 4.38 ± 0.04 kg, respectively. All markers showed polymorphism, but there was no CC genotype for CAPN316, and few animals showed the AA genotype for CAPN530. The alleles CAPN4751, UOGCAST1, and WSUCAST were found to have additive and dominance effects for shear force at 7, 14 and 21 days, while CAPN316 showed a substitution effect for shear force at

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Section: Descriptive Analysissupporting

confidence: 71%

Association of SNPs on CAPN1 and CAST genes with tenderness in Nellore cattle

Pinto¹,

Ferraz²,

Meirelles³

et al. 2010

Genet. Mol. Res.

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“…Zootec., 46(5): [393][394][395][396][397][398][399]2017 in purebreds (Chase et al, 2000;Bonilla et al, 2007;Coleman et al, 2012;Sollecito et al, 2016). However, there is a lack of studies and information regarding the use of local breeds in industrial crosses, with the exception of Caracu breed that has already been evaluated in several production systems and diverse environments and is already part of Brazilian agribusiness (Bonilha et al, 2007;Moreira et al, 2016). Thus, this research aimed to evaluate the use of Curraleiro Pé-Duro (CPD) bulls in crossbreeding with Nellore (NEL) cows to increase meat production on natural pastures of Piauí State, Brazil, and to give use to this breed in risk of extinction.…”

Section: Introductionmentioning

confidence: 99%

Live weight, carcass, and meat evaluation of Nellore, Curraleiro Pé-Duro, and their crossbred products in Piauí State

et al. 2017

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-The objective of this study was to evaluate live weight and carcass traits, from birth to slaughter, and meat quality of Nellore (NEL), Curraleiro Pé-Duro (CPD), and crossbred (F1) products in the state of Piauí, Brazil. Progenies from CPD, NEL, and their F1 crossbred (½ NEL + ½ CPD), a total of 252, males and females, from birth to 24 months of age, were evaluated in a comparative study in growth performance. The steers were sent to slaughter at 28 months of age and carcasses and meat quality were analyzed. After slaughter, carcass weight, dressing percentage and Longissimus dorsi area (rib eye area) were evaluated; an index was created by the relationship between these measures per hundred kg of chilled carcass produced.To assess meat quality, the shear force, water-holding capacity, color, brightness, pH, and cooking loss were investigated. Results obtained showed that month and year of birth were significant on growth, indicating influence of climatic variables. Nellore offspring was heavier than F 1 and this was heavier than CPD throughout the study period, including the hot and cold carcass. No differences were found in dressing percentage among NEL and F 1 , but CPD and F 1 showed a rib eye area and index significantly higher than NEL. The meat from CPD group presented a stronger red coloration than the others, but there was no significant difference in the remaining meat qualitative variables among the three groups. Curraleiro Pé-Duro and F 1 crossbred produce more meat per 100 kg of carcass than Nellore in natural pasture of Piauí State.

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“…The average weight of an animal of the Nellore breed typical in the Amazon is 425kg, and carcass weight is approximately 246 kg [59]. The average export value of this meat, as fresh or frozen beef, was USD 4.06/kg in 2010 [60], making the average value of the beef in one head of cattle USD 999.…”

Section: Cattle Products and Valuesmentioning

confidence: 99%

From Amazon Pasture to the High Street: Deforestation and the Brazilian Cattle Product Supply Chain

Walker

Patel

Kalif³

2013

Tropical Conservation Science

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Brazil has the world's highest annual area of tropical deforestation, and cattle ranching is the largest driver of deforestation in the Brazilian Amazon. Recent domestic and international market demand for beef and leather that are not linked to deforestation led the largest Brazilian meatpackers to adopt policies to reject supplies from ranches with recent deforestation. However, increased and sustained enforcement of such policies will be needed to reduce deforestation in these supply chains over the long-term. We sought to map the Brazilian cattle product supply chain to determine the proportion of the market, and of cattle production, that may be susceptible to market demands for deforestation-free supplies. Beef, leather and live animal exports are the most valuable products from the cattle industry, with export values tripling between 2001 and 2009, and with China, Russia and the U.S. as the largest importing countries. The markets for dairy and tallow (beef fat) are predominantly domestic. We find that around 40% of beef and 85% of leather production serve markets that have expressed concerns over environmental impacts of their purchases, while the clandestine market, which is not susceptible to market environmental demands, is estimated to comprise about one quarter of the Brazilian cattle slaughter. Demand for Brazilian cattle products is growing, and while market-driven efforts to reduce deforestation linked to legal slaughter have shown success, improved governance and other measures will be needed to tackle the environmental impacts of the clandestine industry.

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Evaluation of carcass characteristics of Bos indicus and tropically adapted Bos taurus breeds selected for postweaning weight

Cited by 36 publications

References 27 publications

Association of SNPs on CAPN1 and CAST genes with tenderness in Nellore cattle

Association of SNPs on CAPN1 and CAST genes with tenderness in Nellore cattle

Live weight, carcass, and meat evaluation of Nellore, Curraleiro Pé-Duro, and their crossbred products in Piauí State

From Amazon Pasture to the High Street: Deforestation and the Brazilian Cattle Product Supply Chain

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