Effects of Breed, Age, Season And Week on Milk Secretion Rate and Eight hour Milk yield of West African Dwarf and Red Sokoto Goats
Keywords:
Goat, Milk, West African Dwarf
Abstract
A comparative study on milk secretion rate and 8 h milk yield of West African Dwarf (WAD) and Red Sokoto (RS) goats was carried out at Abeokuta, Nigeria. The milk secretion rate and 8 h milk yield obtained for WAD and RS were 6.57+0.34 ml/h, 52.57 + 2.74 ml and 7.32+0.35 ml/h, 58.55 + 2.83 ml respectively. Does aged 1.5-3 years had higher secretion rate and part milk yield 7.42+0.36 ml/h and 59.37+ 2.86 ml than older does 6.47+0.34 ml/h and 51.75+2.72 ml. The milk secretion rate and 8 hr milk yield were higher in the wet season 7.51+0.35 ml/h and 60.11+2.81ml than in the dry season 6.38+0.35 ml/h and 51.00+2.76 ml. They were also higher in the early weeks of lactation and declined towards the end of lactation.
References
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Akinsoyinu, A.O, Tewe, O.O., Ngere, L.O., Mba, A.U. 1982. Milk composition and the yield of Red Sokoto (Maradi) goats in Nigeria. Dairy Science Abstract. 43: 83-84.
Akpan, G. N., Duru, S. 1999. Milk yield and efficiency of estimation of total milk yield using average records in non-suckling Red Sokoto goats. Science Forum: J. Pure and Applied Sci. 1 (2) 125-130.
Bemji, M.N. 2003. Milk production and preweaning growth of West African Dwarf and Red Sokoto goats. Ph.D Thesis, Department of Animal Breeding and Genetics, University of Agriculture Abeokuta, Nigeria.
Ehoche, O.W., Buvanendran, V. 1983. The yield and composition of milk, preweaning growth rate of Red sokoto goats in Nigeria. World Review of Animal Production, 19(2): 19-24.
Fisher, L.J. 1979. Supplementation with protected lipid as a means of alleviating spring pasture induced milk fat depression. Canadian Journal of Animal Science, 59: 707-712.
Gelais, D., Ali, O.B., Sophie, T. 1999. Composition of goat milk and processing suitability.
James, 2000. Changes in the udder traits of West African Dwarf, Red Sokoto and Sahel goats during pregnancy and lactation and their effects on partial daily milk yield: M. Agric Thesis, Department of Animal Production and Health, University of Agriculture, Abeokuta, Nigeria.
James, I. J., Osinowo, O.A. 2002. Changes in udder dimension of West African Dwarf, Red sokoto and Sahel goats during pregnancy and their relationship with partial daily milk yield: Proceedings of the Annual Conference of Nigerian Society for Animal Production at Federal University of Technology, Akure, Ondo State, Nigeria on 17th – 21st March, 2002. Pp: 39-42
Linzell, J.L. 1996. Unique physiological
and biochemical properties of mammary tissue. Yearbook. 1996. Hannah Research
Institute, Univ. of Glasgow. 6-10.
Morand – Fehr, P., Chilliard Y., Auvant, D. 1982. Goat milk and its components: Secretory mechanisms and influence of nutrition factors. Proc. of the Third. Inter. Conf. on Goat Prod. and Diseases. Jan. 10th – 15th , 1982. Coll. of Agric., the Uni. of Arizona. Dairy Goat Journal Publishing Company. 11-112.
Saini, A.L., Singh, B., Gill, R.S. 1992. Estimate of age from teeth in dairy animals. Indian Dairyman, 45(4):143 – 145
Schams, D., Meyer, H., Worstoff, H. 1984. Hormones and milking. Anim. Res. and development. 19, 38-47.
Systat, 1993. Systat, Computer Package, Version 5.02. Systat, Inc. Evanston, Il, USA,.
Yarkin, I., Eker, M. 1961. A native dairy goat in Turkey. Summ. In viiith International Congress of Animal Production, (Hamburg, 1961). I. General reports, 187 - 189
Zygoyiannis, D. 1994. A note on the effect of number and genotype of kids on milk yield and composition of indigenous Greek goats (Capra prisca.) Anim. Pro. 58:423-426.
