Olarotimi et al
Greener Journal of Agricultural Sciences, Vol. 5 (4), pp. 141-148, July 2015.
Manuscript Number: 070715086
Determination of Daily Sperm Production (DSP) in Rabbit (Oryctolagus cuniculus) Bucks using Testicular Parameters
Olarotimi, Olumuyiwa Joseph1,2 , Sokunbi Olujide Adedamola2, Abdullah Abdur-Rahman3
1Livestock Feeds Plc, P.M.B. 7119, Aba; Abia State, Nigeria
2Department of Animal Science, University of Ibadan, Ibadan, Nigeria, jide.sokunbi @ gmail.com,
3Department of Animal Science, Babcock University, Ilishan-Remo, Nigeria, arabdullah2002 @ yahoo.co.uk, +234803-536-3338,
*Corresponding author: +234803-565-0055, joemuyi @ gmail.com
The study investigated the breeding soundness of male rabbits using daily sperm production (DSP). The relationships between different testicular parameters and the DSP were investigated. A total of twenty (20) pubertal bucks with mean body weights of 1.71±0.03 kg ranging from 1.66 to 1.95 kg were used. The DSP was estimated using the homogenizing technique. Measurements of the external genitalia and the post slaughter traits were subjected to regression analysis using the DSP as the dependent variable to come up with prediction equations for estimating the DSP from the studied traits. The coefficients of determination (R2) for fitted functions were determined.
Paired testicular weight (PTW) had a high and positive correlation (r = 0.64, P>0.01<0.05) with the DSP, paired epididymis weight caudal (PEW3) also had a positive and significant correlation (r = 0.78, P<0.01) with the DSP. Both the paired scrotal length (PSL) and paired scrotal diameter (PSD) had a positive but insignificant correlation (r = 0.40, P>0.05) each with the DSP. The R2 varied from 0.00 to 1.15
Either PSD or PSL could be used to predict DSP in a live buck since it has positive correlation with DSP as the post slaughter traits such as PTW and PEW3.
Key words: External genitalia Morphometric indices, Daily Sperm Production, rabbit, Post slaughter traits.
Abdullah, A.R.; Sokunbi, O.A.; Omisola, O.O. and Adewumi, M.K. (2003). Interrelationship btw body weight and body linear measurements in domestic rabbit. Proc. NSAP conf. vol.28. Pp.133-136.
Amann, R.P. (1970). Sperm production rates. In: the testis. Ed. A.D. Johnson, W.R. Gomes and N.L. Van Denmark. Academic press, N.Y.
Bongso, T.A., Jainudeen, M.R. and Sithzalrah, A. (1982). Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats. Theriogenesis. 18(15):513-524
Carew, B. and Egbunike, G.N. (1980). Sperm production rate in Maradi goats extensively Managed in a tropical environmental. In : 9th int’l. Congress of Anim. Reprod. & artificial insemination. 16th-20th June, 1980. Madrid, Spain.
Cheeke, P.R. (1986). Potentials of rabbit prod. in the tropical&sub-tropical Agric. Sys. J.
Chen, C.P.; Rao, D.R.; Sunki, G.R. and Johnson, W.M. (1978). Effects of weaning and slaughter ages upon rabbit meat prod. I. body weight, feed efficiency
mortality. J. Anim. Sci. 46(3): 573-577
Chineke,C.A.(2000). Characterization of physical body traits of domestic rabbit in the humid tropics, proc.25th Annual conf., NSAP, 19-23 March,2000, Umudike, pp 237.
Dauda, C. S. and Shoyinka, V. (1983). Scrotal circumference, daily sperm production and epididymal spermatozoa of the indigenous Bunaji & Sokoto Gudali bulls in Nigeria. Br. Vet J. 139: 487-489.
Devendra, C. and Burns, M. (1979). Goats prod. in the tropics. Farnham Royal, England.Common Wealth Agricultural Bureau.
Dott, H.M. and Skimmer, J. (1967). Assessment of extragonadal sperm reserves in suftolk rams. J. Agric. Sci. (camb) 69; 293-295.
Farotimi O.J. (2005). Relationships between body weight, body linear measurements and reproductive potential of dutch rabbit bucks. B. Agric Dissertation , Department of Animal science, university of Ibadan, Nigeria.
Igboeli, G. and Rakha, A. M. (1971). Gonadal and extra gonadal sperm reserves of indigenous Central African bulls. J. Reprod. Fert. 25: 107-109.
Lino, B.F. (1972). The output of spermatozoa in rams. II. Relationship to SC, TW and the 359-366.
Marire, B.N. (1987). Prediction of sperm production from scrotal circumference in red sokoto bucks. Proceedings 11th Annual conf. NSAP, ABU, Zaria.148-151
Memon, A.M. (1983). Large animals practice vol.5 (3,619).Vet. Clinic of North America.
Nkanga, E.E. and Egbunike, G.N. (1990). Daily sperm production of the domestic fowl (Gallus gallus) determined by the quantitative testicular histology and homogenate methods. J. Trop. Anim. Prod. 1:1-18
Osinowo, O.A.; Molokun, E.C.I. and Osun, D.I. (1987). Growth and testicular Development in Bunaji bulls. J. Anim. Prod. Res. 1(1): 1-12.
Rao, D.R.; Sunki, G.R. and Johnson, W.M. (1978). Post natal growth of New Zealand white rabbit. J. anim. Sci. 44: 1021 – 1025.
SAS (1999). Statistical Analysis System. User’s guide: statistics. SAS institute Inc. Cary NC 275513 USA.
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