Estrutura de covariância para características de carcaça e tamanho corporal com medidas repetidas em ovinos de diferentes grupos genéticos

Santos, Natanael Pereira da Silva; Guimarães, Fabrício Fernandes; Sarmento, José Lindenberg Rocha; Júnior, Antônio de Sousa; Neto, Aurino de Araújo Rego; Sena, Luciano Silva; Santos, Gleyson Vieira dos

doi:10.1590/s1519-99402016000400009

Cited by 4 publications

(1 citation statement)

References 8 publications

(2 reference statements)

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“…The lack of effect on carcass characteristics among efficiency groups was expected, because animals were slaughtered with similar BW (P>0.05). Weight, yield, and size of animals at slaughter have a positive correlation with carcass characteristics (Cyrillo et al, 2012;Santos et al, 2016b). Our results corroborate previous findings by Nascimento et al (2016), who evaluated HCW and HCY of Nellore calves and found no significant differences among RIG groups.…”

Section: Discussionsupporting

confidence: 92%

Residual intake and gain for the evaluation of performance, non-carcass components, and carcass characteristics of confined crossbred Texel lambs

et al. 2019

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We evaluated performance, non-carcass components, and carcass characteristics of crossbred Texel lambs in different categories of residual intake and gain (RIG). We assessed 77 crossbred (¼ Pantaneira and ¾ Texel) non-castrated animals in two study phases. The first phase included 47 lambs with an initial average weight of 29.9±5.5 kg, and the second phase included 30 lambs with initial average weight of 22.4±3.3 kg. Dry matter intake (DMI) and average daily gain (ADG) were evaluated for 70 days. Animals were divided into three groups in terms of efficiency: efficient (high RIG), intermediate (medium RIG), or inefficient (low RIG), based on the standard deviation of the mean for the RIG variable. We measured the yield of noncarcass components, carcass characteristics, and yield of meat cuts. Efficiency group had no association with DMI, nor with initial and final body weights of the animals. The ADG of efficient (0.310 kg day −1 ) and intermediate (0.290 kg day −1 ) animals was greater than observed in inefficient (0.260 kg day −1 ) animals. Lambs in the efficient and intermediate groups had significantly higher levels of all efficiency indicators evaluated. Efficient and intermediate animals yielded significantly more wool/skin in comparison with lambs in the inefficient group. Animals with high RIG also had lower relative weight of testicles/scrotal sac in comparison with inefficient animals. Fat deposition in the omentum and mesentery as well as total fat were decreased in efficient animals. No significant differences occurred among groups regarding carcass characteristics and yield of meat cuts. The RIG index allows for the identification of lambs with higher growth rates and greater wool/skin yield and lower proportion of visceral fat.

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Section: Discussionsupporting

confidence: 92%

Residual intake and gain for the evaluation of performance, non-carcass components, and carcass characteristics of confined crossbred Texel lambs

et al. 2019

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Growth performance, carcass traits, meat quality, and blood variables of small-sized meat ducks with different feed efficiency phenotypes

Yang

Dong

et al. 2023

Poultry Science

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Growth curve, carcass traits and Kleiber ratio of Dorper crossbreed with hairless native Brazilian sheep breeds

Rezende¹,

Figueiredo

Araújo

et al. 2020

Small Ruminant Research

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Estrutura de covariância para características de carcaça e tamanho corporal com medidas repetidas em ovinos de diferentes grupos genéticos

Cited by 4 publications

References 8 publications

Residual intake and gain for the evaluation of performance, non-carcass components, and carcass characteristics of confined crossbred Texel lambs

Residual intake and gain for the evaluation of performance, non-carcass components, and carcass characteristics of confined crossbred Texel lambs

Growth performance, carcass traits, meat quality, and blood variables of small-sized meat ducks with different feed efficiency phenotypes

Growth curve, carcass traits and Kleiber ratio of Dorper crossbreed with hairless native Brazilian sheep breeds

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