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Carcass and meat quality traits of rabbits under heat stress

Published online by Cambridge University Press:  01 October 2012

C. P. Zeferino ,
C. M. Komiyama ,
S. Fernandes ,
J. R. Sartori ,
P. S. S. Teixeira  and
A. S. A. M. T. Moura
C. P. Zeferino
Affiliation:
Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, 18618-970 Botucatu, SP, Brazil
C. M. Komiyama
Affiliation:
Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, 18618-970 Botucatu, SP, Brazil
S. Fernandes
Affiliation:
Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, 18618-970 Botucatu, SP, Brazil
J. R. Sartori
Affiliation:
Departamento de Melhoramento e Nutrição Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, 18618-970 Botucatu, SP, Brazil
P. S. S. Teixeira
Affiliation:
Biotério Central, Universidade Estadual Paulista, 18618-000 Botucatu, SP, Brazil
A. S. A. M. T. Moura*
Affiliation:
Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, 18618-970 Botucatu, SP, Brazil
*
†E-mail: anamoura@fmvz.unesp.br
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Abstract

Rabbits are very sensitive to heat stress because they have difficulty eliminating excess body heat. The objective of the current study was to evaluate the effects of heat stress on slaughter weight, dressing percentage and carcass and meat quality traits of rabbits from two genetic groups. Ninety-six weaned rabbits were used: half were from the Botucatu genetic group and half were crossbreds between New Zealand White sires and Botucatu does. They were assigned to a completely randomized design in a 2 × 3 factorial arrangement (two genetic groups and three ambient temperatures: 18°C, 25°C and 30°C) and kept under controlled conditions in three environmental chambers from 5 to 10 weeks of age. Slaughter took place at 10 weeks, on 2 consecutive days. Meat quality measurements were made in the longissimus muscle. Actual average ambient temperature and relative humidity in the three chambers were 18.4°C and 63.9%, 24.4°C and 80.2% and 29.6°C and 75.9%, respectively. Purebred rabbits were heavier at slaughter and had heavier commercial and reference carcasses than crossbreds at 30°C; however, no differences between genetic groups for these traits were found at lower temperatures. No genetic group × ambient temperature interaction was detected for any other carcass or meat quality traits. The percentages of distal parts of legs, skin and carcass forepart were higher in crossbred rabbits, indicating a lower degree of maturity at slaughter in this group. The percentage of thoracic viscera was higher in the purebreds. Lightness of the longissimus muscle was higher in the purebreds, whereas redness was higher in the crossbreds. Slaughter, commercial and reference carcass weights and the percentages of thoracic viscera, liver and kidneys were negatively related with ambient temperature. Commercial and reference carcass yields, and the percentage of distal parts of legs, on the other hand, had a positive linear relationship with ambient temperature. Meat redness and yellowness diminished as ambient temperature increased, whereas cooking loss was linearly elevated with ambient temperature. Meat color traits revealed paler meat in the purebreds, but no differences in instrumental texture properties and water-holding capacity between genetic groups. Purebred rabbits were less susceptible to heat stress than the crossbreds. Heat stress resulted in lower slaughter and carcass weights and proportional reductions of organ weights, which contributed to a higher carcass yield. Moreover, it exerted a small, but negative, effect on meat quality traits.

Keywords

carcass yieldcooking lossesliverkidneysmechanical properties
Type
Product quality, human health and well-being
Information
animal , Volume 7 , Issue 3 , March 2013 , pp. 518 - 523
Copyright
Copyright © The Animal Consortium 2012

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References

American Meat Science Association 1995. Research guidelines for cookery, sensory evaluation, and instrumental tenderness measurements of fresh meat. American meat Science Association, National Livestock and Meat Board, Chicago, IL, USA.Google Scholar
Barbosa, OR, Scapinello, C, Martins, EN, Mendes, LDV, Sugohara, A, Saito, EY 1992. Desempenho de coelhos da raça Nova Zelândia Branco, criados em diferentes tipos de instalações, durante as estações de verão e inverno. 4 Características quantitativas de carcaça. Revista Brasileira de Zootecnia 21, 807–814.Google Scholar
Bianospino, E, Moura, ASAMT, Wechsler, FS, Fernandes, S, Dal-Pai-Silva, M 2008. Age-related changes in muscle type frequencies and cross-sectional areas in straightbred and crossbred rabbits. Animal 2, 1627–1632.CrossRefGoogle ScholarPubMed
Blasco, A, Ouhayoun, J 1996. Harmonization of criteria and terminology in rabbit meat research. World Rabbit Science 4, 93–99.Google Scholar
Cervera, C, Fernández-Carmona, J 2010. Nutrition and the climatic environment. In Nutrition of the rabbit (ed. C De Blas and J Wiseman), pp. 267–284. CABI Publishing, Wallingford, UK.Google Scholar
Cheeke, PR 1987. Rabbit Feeding and Nutrition. Academic Press, San Diego, USA.Google Scholar
Chiericato, GM, Ravarotto, L, Rizzi, C 1994. Study of the metabolic profile of rabbits in relation to two different environmental temperatures. World Rabbit Science 2, 153–160.Google Scholar
Chiericato, GM, Rizzi, C, Rostellato, V 1993. Effect of genotype and environmental temperature on the performance of the young meat rabbit. World Rabbit Science 1, 119–125.Google Scholar
Chiericato, GM, Rizzi, C, Rostellato, V 1996a. Effect of genotype and environmental conditions on the productive and slaughtering performance of growing meat rabbits. Proceedings of the 6th World Rabbit Congress, 9–12 July 1996, Toulouse, France, pp. 147–151.Google Scholar
Chiericato, GM, Rizzi, C, Rostellato, V 1996b. Meat quality of rabbits of different genotypes reared in different environmental conditions. Proceedings of the 6th World Rabbit Congress, 9–12 July 1996, Toulouse, France, pp. 141–145.Google Scholar
Chiericato, GM, Boiti, C, Canali, C, Rizzi, C, Ravarotto, L 1995. Effects of heat stress and age on growth performance and endocrine status of male rabbit. World Rabbit Science 3, 125–131.Google Scholar
Dalle Zotte, A 2002. Perception of rabbit meat quality and major factors influencing the rabbit carcass and meat quality. Livestock Production Science 75, 11–32.Google Scholar
Dalle Zotte, A, Ouhayoun, J 1998. Effect of genetic origin, diet and weaning weight on carcass composition, muscle physiochemical and histochemical traits in the rabbit. Meat Science 50, 471–478.Google Scholar
Dalle Zotte, A, Princz, Z, Metzer, Sz, Szabó, A, Radnai, I, Biró-Nemeth, E, Orova, Z, Szendrö, Zs 2009. Response of fattening rabbits reared under different housing conditions. 2. Carcass and meat quality. Livestock Science 122, 39–47.Google Scholar
Garreau, H, Piles, M, Larzul, C, Baselga, M, De Rochambeau, H 2004. Selection of maternal lines: last results and prospects. Conference at the 8th World Rabbit Congress, 7–10 September 2004, Puebla, Mexico, pp.14–25.Google Scholar
Goméz, EA, Baselga, M, Rafel, O, Ramon, J 1998. Comparison of carcass characteristics in five strains of meat rabbit selected on different traits. Livestock Production Science 55, 53–64.Google Scholar
Hamm, R 1960. Biochemistry of meat hydration. Advances in Food Research 10, 435–443.Google Scholar
Honikel, KO 1987. The water binding of meat. Fleischwirtschaft 67, 1098–1102.Google Scholar
Hulot, F, Ouhayoun, J 1999. Muscular pH and related traits in rabbits: a review. World Rabbit Science 7, 15–36.Google Scholar
Kelly, CF, Bond, TE 1971. Bioclimatic factors and their measurement. A guide to environmental research on animals. National Academy of Sciences, Washington, DC, USA.Google Scholar
Lambertini, L, Vignola, G, Badiani, A, Zaghini, G, Formigoni, A 2006. The effect of journey time and stocking density during transport on carcass and meat quality traits in rabbits. Meat Science 72, 641–646.CrossRefGoogle Scholar
Lukefahr, S, Hohenboken, WD, Cheeke, PR, Patton, NM 1983. Appraisal of nine genetic groups of rabbits for carcass and lean yield traits. Journal of Animal Science 57, 899–907.Google Scholar
Marai, IFM, Habeeb, AAM, Gad, AE 2002. Rabbits’ productive, reproductive and physiological performance traits as affected by heat stress: a review. Livestock Production Science 78, 71–90.Google Scholar
María, GA, Buil, T, Liste, G, Villarroel, M, Sañudo, C, Olleta, JL 2006. Effect of transport time and season on aspects of rabbit meat quality. Meat Science 72, 773–777.Google Scholar
Moura, ASAMT, Costa, ARC, Polastre, R 2001. Variance components and response to selection for reproductive, litter and growth traits through a multi-purpose index. World Rabbit Science 9, 77–86.Google Scholar
Müller, PB 1989. Bioclimatologia Aplicada Aos Animais Domésticos, 3rd edition. Sulina, Porto Alegre, RS, Brazil.Google Scholar
National Research Council 1996. Guide for the care and use of laboratory animals. National Research Council, National Academy Press, Washington, DC, USA.Google Scholar
Newcom, DW, Stadler, KJ, Baas, TJ, Goodwin, RN, Parrish, FC, Wiegand, BR 2004. Breed differences and genetic parameters of myoglobin concentration in porcine longissimus muscle. Journal of Animal Science 82, 2264–2268.Google Scholar
Pascual, M, Pla, M 2007. Changes in carcass composition and meat quality when selecting rabbits for growth rate. Meat Science 77, 474–481.Google Scholar
Pascual, M, Pla, M, Blasco, A 2008. Effect of selection for growth rate on relative growth in rabbits. Journal of Animal Science 86, 3409–3417.Google Scholar
Piles, M, Blasco, A, Pla, M 2000. The effect of selection for growth rate on carcass composition and meat characteristics of rabbits. Meat Science 54, 347–355.Google Scholar
Pla, M, Hernández, P, Blasco, A 1996. Carcass composition and meat characteristics of two rabbit breeds of different degrees of maturity. Meat Science 44, 85–92.Google Scholar
Ramírez, JA, Oliver, MA, Pla, M, Guerrero, L, Ariño, B, Blasco, A, Pascual, M, Gil, M 2004. Effect of selection for growth rate on biochemical, quality and texture characteristics of meat from rabbits. Meat Science 67, 617–624.CrossRefGoogle ScholarPubMed
SAS 2003. User's guide (release 9.1.3 Service Pack 2). SAS Institute Incorporation, Cary, NC, USA.Google Scholar
Van Laack, RL, Liu, CH, Smith, MO, Loveday, HD 2000. Characteristics of pale, soft, exudative broiler breast meat. Poultry Science 79, 1057–1061.CrossRefGoogle ScholarPubMed
Zeferino, CP, Moura, ASAMT, Fernandes, S, Kanayama, JS, Scapinello, C, Sartori, JR 2011. Genetic group × ambient temperature interaction effects on physiological responses and growth performance of rabbits. Livestock Science 140, 177–183.Google Scholar