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Tropical Animal Health and Production

, Volume 51, Issue 7, pp 1903–1908 | Cite as

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

  • Marco Antonio Paula de SousaEmail author
  • Alyne Cristina Sodré Lima
  • Jonas Carneiro Araújo
  • Célia Maria Costa Guimarães
  • Maria Regina Sarkis Peixoto Joele
  • Iran Borges
  • Luciara Celi Chaves Daher
  • André Guimarães Maciel e Silva
Regular Articles
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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.

Keywords

Hair sheep lamb Breeding Tissues Growth Allometry 

Notes

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.

Compliance with ethical standards

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.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Marco Antonio Paula de Sousa
    • 1
    Email author
  • Alyne Cristina Sodré Lima
    • 1
  • Jonas Carneiro Araújo
    • 2
  • Célia Maria Costa Guimarães
    • 1
    • 3
  • Maria Regina Sarkis Peixoto Joele
    • 3
  • Iran Borges
    • 4
  • Luciara Celi Chaves Daher
    • 5
  • André Guimarães Maciel e Silva
    • 1
  1. 1.Institute of Veterinary Medicine, Post-Graduate Program in Animal ScienceFederal University of ParáCastanhalBrazil
  2. 2.Institute of Health and Animal Production, Graduate Program in Health and Animal Production in the AmazonFederal Rural University of the AmazonBelémBrazil
  3. 3.Federal Institute of ParáCastanhalBrazil
  4. 4.School of Veterinary Medicine, Department of Animal ScienceFederal University of Minas GeraisBelo HorizonteBrazil
  5. 5.Institute of Health and Animal Production Castanhal-ParáFederal Rural University of the AmazonBelémBrazil

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