Ahemen et al Greener Journal of Agricultural Sciences Vol. 6 (4), pp. 167-172, April 2016. ISSN: 2276-7770 Research Paper Manuscript Number: 031716065 (DOI: http://doi.org/10.15580/GJAS.2016.4.031716065) Biometry of Male Genitalia and Internal Organ Characteristics of Indigenous Genotypes of Domestic Fowl in the Southern Guinea Savanna Region of Nigeria Ahemen T, Ochefu J and Mtem S Department of Animal Breeding and Physiology, University of Agriculture, Makurdi. Abstract A total of Thirty Nigerian indigenous genotypes of the domestic fowl, aged between 22-25 weeks were used to evaluate the biometry of male genitalia and internalorgan characteristics.The result showed significant (p<0.05) effect of genotype, on right epididymis weight with naked neck having a higher mean value of 0.17± 0.60g and normal feather with least value of 0.14± 0.03g. The paired vas deferensweight was significantly higher for frizzle feather (0.90± 0.12g. lower in normal feather (0.67± 0.24g) and naked neck (0.64± 0.15). The left testis length was significantly higher (3.83± 1.13cm) in normal feather and naked neck (2.83± 0.20cm) and least in frizzle feather (1.93± 0.38cm) .The left testis length follows the same trend. Significant effect of genotype was not observed on paired testes weight, Testis volume, epididymal lengths and vas deferens lengths. No significant (P>0.05) effect of Genotype was observedon absolute weights of heart, lungs and kidney; but significant effect (P<0.05) was found on relative weights of spleen, lungs and liver. The study provide baseline data for Nigeria indigenous genotypes of domestic fowl in the southern guinea savanna region which may be useful for future studies and breeding programmes aimed at genetic improvement of the reproductive performance of local chickens in Nigeria. Keywords: Genotypes, naked neck, frizzle feather, normal feather, Male genitalia. Return to Content View [Full Article – PDF] [Full Article – HTML] [Full Article – EPUB] Post-review Rundown View/get involved, click [Post-Review Page] References Ahemen, T, Abu, AH and Orakaanya, TT (2013). Sperm quality, testicular morphometry of rabbits fed dietary levels of water spinach (Ipomoea aquatica) leaf meal. Agric. Biol. J. N. Am., 2013, 4(3): 352-357 http://www.scihub.org/ABJNA Ashom SA, Tuleun, CD and Carew SN (2014). Growth, carcass and internal organ characteristics of finisher chickens fed processed Roselle (Hibiscus sabdariffa L) seed meal diets. Journal of biology, agriculture and Healthcare 424 pp141- 145 Bath, GS and Chaurdhari, SUR (2002).Sperm Reserve and its Relationship to Parameters of the Testis, Epididymis and Vas Deferns of Local Cocks in the Sahel Region of Nigeria. International Journal of Agricultural and Biology.1560-8530/2002/04-4-562-564. Burke, WH (1977). Avian reproduction.In: Swenson, M.S. (ed), Duke’sPhysiology of Domestic Animals, 9th Ed., p. 825. Cornell UniversityPress Ltd., USA Egbunike, GN, Holtz, W and Sidt, D (1976). Reproductive capacity of German Landrace boars, 11: Sperm production rates as determined by quantitative testicular histology and from gonadal sperm reserves. Zuchthygeine, 11:35-47. Ezekwe, AG (1998). Gonadal and extragonadal sperm reserve and testicular histometry of post pubertal Muturu bulls. Nig. J. Anim. Prod., 25: 106-110. GenStat (2005).GenStat user’s Guide (Release 4.24). Lawes Agricultural Trust, Rothamsted Experimental station, UK. Hafez , B and Hafez, ESE (2000). Reproduction in Farm Animals, 7th Ed., : 5–7. Lea and Fabiger, Philadelphia Horst, P (1988). Mature fowl as reservoir for genomers and major genes with direct and indirect effect on production adaptability. In: proceedings of 18th World Poutry Congress, Mgoya, Japan, 4-6 September, pp 105. Ibrahim, AA, Aliyu, J, Ashiru, M and Jamilu.M (2012). Biometric Study of the Reproduction Organs of Three Breeds of Sheep in Nigeria. Int. J. Morpho., 30(4): 1597-1603, 2012. Lake PE., Rule, O and Naddington, N (1985). Some effects of the composition of inseminated semen and site of its deposition and fertility in Gallus domesticus. Animal Reproduction Science 9:273-284. Oke, UK and Ihemeson, C (2010).Effect of genotype on the morphometric differentiation of the reproductive organs and sperm reserves in Nigerian local chicken. Livestock Research for Rural Development 22(23) 2010. www.irrd.org/irrd22/3/oke22053.htm-Cached. Oke,UK,Herbert, U,Ebuzoeme, C and Nwachukwu, EN (2007) Effect of genotype on haematology of Nigerian local chicken, IN: proceedings of the 32nd Annual Conference of the Nigerian Society of Animal Production NSAP Calabar, Nigeria. Pp 123-1256. Perry G,and Petterson D. (2001). Determining reproductive fertility in herd bulls. University of Missouri Agriculture publication 2011:1-8. Rim,(1992).Recourses Inventory and Management in Nigeria.National Livestock Survey; Federal Department of livestock and pest control services Abuja, Nigeria. Siddiqui, HUR, Ahmad, A and Khan, MZ (2005). Biometrical studies of testes of ram. J. Agric. Social Sci., 1: 78-79. TAC (2009).Makurdi Weather Elements Records, MakurdiMetereological Station. Nigeria Air Force, Tactical Air Command, Makurdi, Nigeria. Togun, VA andEgbunike, GN(2006). Seasonal variations in the sperm production characteristics of Zebu (white Fulani) cattle genitalia in the humid tropical environment. Middle-East J. Sci. Res., 1: 87-95. Ugwu, SOC (2009).Relationship between Scrotal circumferences, insitu Testicular Measurement and Sperm Reserves in the West African Dwarf Bucks.Afr. J. Biotechnol., 8(7):1354-7,.