SERUM BIOCHEMICAL CONSTITUENTS IN DOE RABBITS RE-MATED AT THREE POSTPARTUM TIME-PERIODS UNDER TROPICAL ENVIRONMENT
Three groups of crossbred (New Zealand White x Chinchilla) does were used in a randomized complete block design. Does were re-mated 1-9, 10-20 and 21-28 days after parturition in the dry and rainy seasons in Ayetoro, Ogun State, Nigeria. Blood samples were collected at 2, 10 and 20 days post coitum (pc) in the does following their second parturition. The blood samples were processed and assayed for serum proteins, glucose, urea and creatinine. Serum total protein (STP) at 2 days after mating was lower (P<0.05) in the 1-9 days group (4.3g/dL) when compared to 10-20 days group (5.8g/dL) and 21-28 days group (5.1g/dL). Does re-mated 10 -20 and 21-28 days postpartum had a significantly (P<0.05) higher serum albumin than does re-mated at 1-9 days postpartum at 20 days pc. At 20 days after mating serum globulin was highest (P<0.05) in does re-mated 1-9 days post partum. Serum glucose at 2 and 20 days after mating were not significantly (P>0.05) affected by postpartum re-mating interval. At 20 days after mating however, serum urea and creatinine decreased (P<0.05) as postpartum re-mating interval increased.Â Serum total protein, serum albumin, glucose and urea were significantly (P<0.05) higher in the dry season than rainy season. However, most values obtained fall within normal ranges for the domestic rabbit except serum globulin. The result of this research has demonstrated little or no stress to internal physiology due to concurrent pregnancy and lactation at least in the short run.
Awojobi, H.A., Adejumo, D.O. 2009. Reproduction study in doe rabbits re-bred at three postpartum re-mating time-periods in a tropical environment. World J. Zool., 4(1): 14-18.
Awojobi, H.A., Awojobi, E.A., Adejumo, D.O., Eniolorunda, O.O., Aluko, F.A. 2011. The effects of reducing postpartum re-mating time-period on reproductive performance of the doe rabbit. Archivos de Zootecnia, 60(231): 501-512.
Castellini, B., DalBosco, A., Muguai, C. 2003. Comparison of different reproduction protocols for rabbit does: effect of litter size and mating interval. Livestock Production Science, 60(2-3): 229-241.
Cervera, C.J., Fernadez-Carmona, J., Viudes, P., Blas E. 1993. Effect of remating interval and diet on the performance of female rabbits and their litters. Anim. Prod., 56: 399-405.
Cheeke, P.R. 1986. Potential of rabbit production in tropical and sub-tropical Agricultural System. J. Anim. Sci., 63: 1581-1586.
Iyeghe-Erakpotobor, G.T., Oyedipe, E. O., Eduvie, L.O., Ogwu, D. 2005. Effect of rebreeding interval on reproductive performance and body weight changes of does during pregnancy. Nig J. Anim. Prod., 32(1): 142-152.
Jain, N.C. 1986. Schalms Veterinary haematology 4th ed. Lea and Febiger, Philadelphia.
Kaplan, A., Szabo, L.L. 1983. Clinical Chemistry: Interpretation and Techniques. 2nd ed. Lea and Febiger.
Kozma, C. Macklin, W., Cummins, L., Mauer, R. 1974. Anatomy, Physiology and Biochemistry of the rabbit. : The Biology of the laboratory rabbit. Weisbroth, S. H., Hatt R. E. and Krims A. C. Eds. Academic Press, New York. 49-71.
Lebas, F., Coudert, P., Rouvier, R., De Rochambeau, H. 1997. The rabbit-husbandry, health and production (new revised version). 3rd ed. FAO, Rome.
MAFF. 1973. Commercial Rabbit Production. Bulletin 50. Ministry of Agriculture, Fisheries and Food, London.
Mitruka, B.M., Rawnsley, H.M. 1977. Clinical Biochemical and Haematological Reference Values in Normal Experimental Animals. 1st ed. Masson Publishing U.S.A.
Onakomaiya, S.O., Oyesiku, K.A., Jegede, S.J. 1992. Ogun State in Maps. 1st ed. Rex Charles Publications, Ibadan.
Parigi-Bini, R., Xiccato, G., Gnetto, M. 1989. Influenza dellâ€™intervallo parto-acco ppiamento sulle prestazioni reproduttive delle coniglie fattrici. Riv. di Coniglicoltura, 26: 51-57.
Ramirez, V.D., Soufi, W.L. 1993. The neuroendocrine control of the rabbit ovarian cycle. The physiology of reproduction. E. Knobil and J. D. Neill, Eds. Raven Press: New York. 585-611.
SAS Institute 1999. SAS/STAT Users guide, version 6. 11. 5th ed. Vol. 2 Statistical Analysis System Institute Inc. Cary N. C.
Varley, H., Gowelock, A.H., Bell, M. 1980. Determination of serum urea using the acetyl monoxide method. Practical Biochemistry. 5th ed. William Heinemann Medical Books Ltd., London.