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The influence of non-genetic factors on the shape of lactation curves in Red Sokoto goats

Published online by Cambridge University Press:  18 August 2016

G. N. Akpa ,
E.O. Asiribo ,
O. O. Oni  and
J. P. Alawa
G. N. Akpa
Affiliation:
Animal Science Department, Ahmadu Bello University, Zaria, Nigeria
E.O. Asiribo
Affiliation:
Animal Science Department, Ahmadu Bello University, Zaria, Nigeria
O. O. Oni
Affiliation:
Animal Science Department, Ahmadu Bello University, Zaria, Nigeria
J. P. Alawa
Affiliation:
Animal Science Department, Ahmadu Bello University, Zaria, Nigeria
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Abstract

Milk yields of 66 nursing does recorded in Zaria, Nigeria were used to characterize the lactation curve and study the influencing factors in Red Sokoto goats. Lactation curve parameters obtained by fitting the model: Yt = atbe –ct were subjected to statistical analysis, using herd, season, parity, litter size and litter composition of dams.

The results indicate that the lactation curve of these goats was characterized by milk production increasing in early lactation, attaining a peak at approximately 2 to 5 weeks post partum and thereafter declining slowly to the end of lactation. The observed total yield, peak yield, peak day and the estimated persistency defined as c–( b + 1) was 79·3 kg, 1·2 kg, 20·5 and 143·2, respectively. Parameters ‘ a‘ and ‘ c‘ were strongly but negatively correlated ( r = –0·53; P < 0·01). The curve parameters ‘ a‘ and ‘ c‘ differed by herd and season ( P < 0·05); and parity only affected ( P < 0·01) parameter ‘ a‘. None of the factors significantly influenced parameter ‘ b‘ ( P > 0·05).

The significant herd and season effects may have practical implications in determining optimal feeding management and season of breeding to maximize total lactation yield.

Keywords

goatslactation curveRed Sokoto.
Type
Breeding and genetics
Information
Animal Science , Volume 72 , Issue 2 , April 2001 , pp. 233 - 239
Copyright
Copyright © British Society of Animal Science 2001

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References

Akpa, G. N. 1999. Evaluation of dairy characteristics and lactation curves of small-holder Red Sokoto (Maradi) goats. Phd. thesis, Ahmadu Bello University, Zaria, Nigeria. Google Scholar
Awgichew, K., Yacob, Y. and Fletcher, I. 1991. Productivity of pure-bred Adal and quarter bred Saanen ✕ Adal goats in Ethiopia. Dairy Science Abstracts 53: 49–51.Google Scholar
Browning Jr, R., Leite-Browning, M. L. and Sahlu, T. 1995. Factors affecting standardized milk and fat yields in Alpine goats. Small Ruminant Research 18: 173–178.Google Scholar
Carles, A. B. 1986. The levels of, and constraints to productivity of goats and sheep at Ngarunit and Korr in Marsabit District. In IPAL technical report E-8 (ed. Field, C. R.), pp. 33–118. UNESCO, IPAL.Google Scholar
Devendra, C. 1980. Milk production in goats compared to buffalo and cattle in humid tropics. Journal of Dairy Science 63: 1753–1767.CrossRefGoogle Scholar
Egwu, G. O., Onyeyili, P. A., Chibuzo, G. A. and Ameh, J. A. 1995. Improved productivity of goats and utilisation of goat milk in Nigeria. Small Ruminant Research 16: 195–201.Google Scholar
Ehoche, O. W. and Buvanendran, V. 1983. The yield, milk composition and preweaning growth rate of Red Sokoto goats. World Review of Animal Production 19: 19–24.Google Scholar
Erdman, R. A. and Varner, M. 1995. Fixed yield responses to increasing milking frequency. Journal of Dairy Science 78: 1199–1203.Google Scholar
Fasanya, O. O. A. 1986. Maximising the production efficiency of goats. J. Assoc. Vet. Med. Studients XII: 18–21.Google Scholar
Gipson, T. A. and Grossman, M. 1989. Diphasic analysis of lactation curves in dairy goats. Journal of Dairy Science 72: 1035–1044.Google Scholar
Guo, Z. and Swalve, H. 1995. Modelling of the lactation curve as a sub-model in the evaluation of test-day records. Proceedings of the Interbull annual meeting, Prague, Czech Republic, 7-8 September 1995, bulletin no. 11. Department of Animal Breeding and Genetics, SLU, Uppsala, Sweden.Google Scholar
Gupta, R. N. and Johar, K. S. 1982. Genetic and non-genetic factors affecting persistency of first lactation in tharparker-India. Journal of Dairy Science 35: 99–100.Google Scholar
Hassan, H. A. 1995. Effect of crossing and environmental factors on production and some constituents of milk in Ossimi and Saidi sheep and their crosses with chios. Small Ruminant Research 18: 165–172.Google Scholar
Iloyd, D. H. 1963. The milk production of Merino ewes at pasture. Australian Journal of Agricultural Research 14: 824–838.Google Scholar
Madalena, F. A., Martinez, M. L. and Freitas, A. F. 1979. Lactation curves of Holstein-Friesian and Holstein-Friesian ✕ Gir cows. Animal Production 29: 101–107.Google Scholar
Madrid-Bury, N., Gonzalez-Stagnara, C. and Fiqueron, L. 1982. Milk production of native goats in a tropical zone. Proceedings of the third international conference on goat production and diseases, p. 84.Google Scholar
Mavrogenis, A. P., Constantinou, A. and Louca, A. 1984. Environmental and genetic causes of variation in production traits of Damascus goats. 1. Pre-weaning and post-weaning growth. Animal Production 38: 91–97.Google Scholar
Montaldo, H., Juarez, A., Berruecos, J. M. and Sanchez, F. 1995. Performance of local goats and their backcrosses with several breeds in Mexico. Small Ruminant Research 16: 97–105.Google Scholar
Morand-Fehr, P. and Sauvant, D. 1978. Nutrition and optimum performance of dairy goats. Livestock Production Science 5: 203–212.Google Scholar
Mourad, M. 1993. Reproductive performance of Alpine and Zaraibi goats and growth of their first cross in Egypt. Small Ruminant Research 12: 379–384.Google Scholar
Mukundan, G. and Bhat, P. N. 1983. Lactation curve in Malabari goats and their Saanen halfbreds. Indian Journal of Animal Science 53: 666–669.Google Scholar
Osinowo, O. A. and Abubakar, B. Y. 1989. Appropriate breeding strategies for small ruminant production in West and Central Africa. In Proceedings of the workshop on the improvement of small ruminants in West and Central Africa (ed. Adeniji, K. O.), pp. 71–84.Google Scholar
Rabasco, A., Serradilla, J. M., Padilla, J. A. and Serrano, A. 1993. Genetic and non-genetic sources of variation in yield and composition of milk in Verata goats. Small Ruminant Research 11: 151–161.Google Scholar
Rao, M. K. and Sundareson, D. 1982. Factors affecting the shape of lactation curve in Friesian ✕ Sahiwal cross-bred cows. Indian Journal of Dairy Science 35: 160–167.Google Scholar
Ruvuna, F., Kogi, J. K., Taylor, J. F. and Mkuu, S. M. 1995. Lactation curves among crosses of Galla and East African with Toggenburg and Anglo-Nubian goats. Small Ruminant Research 16: 1–6.Google Scholar
Sakul, H. and Boylan, W. J. 1992. Lactation curves for several US sheep breeds. Animal Production 54: 229–233.Google Scholar
Statistical Analysis Systems Institute. 1989. User’s guide; statistics, version 6, fourth edition. Statistical Analysis Systems Institute Inc., Cary, NC.Google Scholar
Wahome, R. G. 1987. Milk production potential of free ranging Small East African goats. Thesis, University of Nairobi. Google Scholar
Wahome, R. G., Carles, A. B. and Schewartz, H. J. 1994. Analysis of variatioin of lactation curves of small East African goats. Small Ruminant Research 15: 1–7.CrossRefGoogle Scholar
Wood, P. D. P. 1967. Algebraic model of the lactation curve in cattle. Nature, London 216: 164–165.Google Scholar