A Comparative Study On Biochemical Parameters For Mature California And Chinchilla Rabbits In Sohag Governorate.

Seddik, Gehad; Aboughaba, Ahmed A.; Mahmoud, Fatma A.; Salman, Doaa; Mahmoud, Motamed E.

doi:10.21608/javs.2019.62677

A Comparative Study On Biochemical Parameters For Mature California And Chinchilla Rabbits In Sohag Governorate.

Document Type : Original Article

Authors

¹ Department of Animal Behavior and Husbandry (Genetic, Breeding, and Production), Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt, 8524.

² Department of Poultry Production, Faculty of Agriculture, Sohag University, Sohag, Egypt, 8524

³ Department of Animal Medicine, Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt, 8524.

10.21608/javs.2019.62677

Abstract

Rabbit as homeothermic species is able to keep its core body temperature within ± 1°C regulatory range. In Upper Egypt where high ambient temperature particularly at summer months, rabbit breeding ceases, by virtue of its fur, there is certain inability to dissipate excess body heat. Under uncontrolled ambient environment, most of the observed mortality at summer is due to heat stasis. In this study, we compared white (California) to black (Chinchilla) mature breeds of rabbits. Blood picture and serum hormonal profiles were assessed. The results showed many similarities between the two breeds in terms of blood picture, the serum concentration of tri-iodothyronine (T3) and thyroxine (T4), but T3/T4 ratio was higher and corticosterone was lower in California than Chinchilla rabbits (P<0.5). Heat loss was higher in male California than other rabbits. The overall results referred to the higher ability of California breed to withstand heat stress compared to Chinchilla rabbits.

Keywords

Main Subjects

Biochemistry and biotechnology

References

ABELSON KS, KALLIOKOSKI O, TEILMANN AC, HAU J. 2016. Applicability of Commercially Available ELISA Kits for the Quantification of Faecal Immunoreactive Corticosterone Metabolites in Mice. In Vivo. ;30:739–744. doi: 10.21873/invivo.10989.

CHINEKE, C.A.; OLOGUN, A.G. AND IKEOBI, C.O.N. 2006. Haematological parameters in rabbit breed and crosses in humid tropics. Pakistan J Biol Sci 9: 2102-2106.

HINTON, M.; JONES, D.R.E. AND FESTING, M.F.W. 1982. Hematological findings in healthy and diseased rabbits, a multivariate analysis. Lab Anim 16: 123-129.

HOY, S. AND VERGA, M. 2006. Welfare indicators. In: Maertens L, Coudert P (Eds.) Recent Advances in Rabbit Sciences, ILVO, Melle, Belgium: pp.71-74.

KUROSAWA, T.; KUSANAGI, M.; YAMASAKI, Y.; SENGA; Y. AND YAMAMOTO, T. 1995. New mutant rabbit strain with hyperocholesterolemia and atherosclerotic lesions produced by serial inbreeding. Lab Anim Sci 45: 385-392.

LATTIN CR, BREUNER CW, MICHAEL ROMERO L. 2016.Does corticosterone regulate the onset of breeding in free-living birds?: The CORT-Flexibility Hypothesis and six potential mechanisms for priming corticosteroid function. Horm Behav.;78:107-20.

LEWIS JG, BAGLEY CJ, ELDER PA, BACHMANN AW, TORPY DJ. 2005. Plasma free cortisol fraction reflects levels of functioning corticosteroid-binding globulin. Clin Chim Acta.;359:189–194. doi: 10.1016/j.cccn.2005.03.044.

MAHMOUD,, M.E., DOSOKY R.M., AHMED, MM., TAKEWAKI, T. 2011. Estimation of sensible heat loss in capsaicin-desensitized chicken after exposure to disruption of thermal homeostasis. Ass. Univ. Bull. Environ. Res. 14(2) 57–69.

MARTINEC, M. HÄRTLOVÁ, H., CHODOVÁ D, TUMOVA, E. AND FUČÍKOVÁ, A. 2012. Selected hematological and biochemical indicators in different breeds of rabbits ACTA VET. BRNO, 81: 371–375.

NÄÄS, I.A., ROMANINI, C.E.; NEVES, D.P., NASCIMENTO, G.R., AND VERCELLINO, R.A., 2010. Broiler surface temperature distribution of 42-day old chickens. Sci. Agric. 67 (5): 497-502.

PILO A, IERVASI G, VITEK F, FERDEGHINI M, CAZZUOLA F, BIANCHI R .1990. "Thyroidal and peripheral production of 3,5,3'-triiodothyronine in humans by multicompartmental analysis". The American Journal of Physiology. 258 (4 Pt 1): E715–26.

ROMANOVSKY, A.A. 2007. Thermoregulation: some concepts have changed. functional architecture of the thermoregulatory system. American Journal of Physiology, Regulatory, Integrative and Comparative Physiology 292 (1), R37–R46.

STEINER, A.A. AND BRANCO, L.G. 2002. Hypoxia-induced anapyrexia: implications and putative mediators. Annual Review of Physiology 64, 263–288.