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Tissue composition and allometric growth of carcass of lambs Santa Inês and crossbreed with breed Dorper

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Abstract

This study aimed to assess the tissue composition and allometric growth of carcasses of Santa Inês and crossbred Dorper x Santa Inês lambs confined for different periods at three body weight classes. Sixty-four lambs from Santa Inês (SI) and crossbred Dorper x Santa Inês (DSI) were slaughtered. The carcasses were refrigerated at 4 °C for 24 h, and half of the right side carcass was divided into five primary cuts, which were then dissected into bone, muscle, and fat. The corrected cold carcass weight (CCWc) was calculated based on the sum of the cuts. There was no effect of the interactions evaluated (P > 0.05) among the factors tested. CCWc, muscle (kg), fat (kg), bone (%), M:F, M:B, F:B, and M+F:B were influenced by the lambs’ genetic group (P < 0.05). An effect of body weight at the beginning of confinement was found only for CCWc, muscle (kg), fat (kg), bone (kg), bone (%), and M:F. The crossbreeding of Santa Inês with breeds Dorper promotes improvements in the qualitative characteristics of the carcass. To obtain better relationships of the quantitative characteristics of the carcass, of sheep introduced in confinements with larger weights, the slaughter weight must be adjusted to that initial weight.

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Acknowledgements

The authors are thankful to CAPES’s (Coordination for the Improvement of Higher Education Personnel) Pro-Amazon: Biodiversity and Sustainability program for funding the project and granting the scholarship during the master’s degree program and to the Federal University of Pará (UFPA).

Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior–Brasil (CAPES)–Finance Code 001.

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Authors and Affiliations

  1. Institute of Veterinary Medicine, Post-Graduate Program in Animal Science, Federal University of Pará, Castanhal, Pará, 68746-360, Brazil

    Marco Antonio Paula de Sousa, Alyne Cristina Sodré Lima, Célia Maria Costa Guimarães & André Guimarães Maciel e Silva

  2. Institute of Health and Animal Production, Graduate Program in Health and Animal Production in the Amazon, Federal Rural University of the Amazon, Belém, Pará, 66077-830, Brazil

    Jonas Carneiro Araújo

  3. Federal Institute of Pará, Castanhal, Pará, Brazil

    Célia Maria Costa Guimarães & Maria Regina Sarkis Peixoto Joele

  4. School of Veterinary Medicine, Department of Animal Science, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil

    Iran Borges

  5. Institute of Health and Animal Production Castanhal-Pará, Federal Rural University of the Amazon, Curió Utinga, Belém, PA, Brazil

    Luciara Celi Chaves Daher

Authors
  1. Marco Antonio Paula de Sousa
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  2. Alyne Cristina Sodré Lima
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  3. Jonas Carneiro Araújo
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  4. Célia Maria Costa Guimarães
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  5. Maria Regina Sarkis Peixoto Joele
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  6. Iran Borges
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  7. Luciara Celi Chaves Daher
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  8. André Guimarães Maciel e Silva
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Corresponding author

Correspondence to Marco Antonio Paula de Sousa.

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Ethical approval

This study was conducted in strict conformity with the Brazilian legislation on experimentation involving the use of animals adopted by the National Council of Experimental Control (CONCEA) and was approved by the Ethics Committee In Animal Use (CEUA) of the Federal University of Pará, located in Belém-PA, Brazil, under approval no. 97/2015, of 01/12/2015.

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The authors declare that they have no conflict of interest.

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de Sousa, M.A.P., Lima, A.C.S., Araújo, J.C. et al. Tissue composition and allometric growth of carcass of lambs Santa Inês and crossbreed with breed Dorper. Trop Anim Health Prod 51, 1903–1908 (2019). https://doi.org/10.1007/s11250-019-01886-2

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