1998. A review of genetic resistance to gastrointestinal nematode parasites in sheep and goats in the tropics and evidence for resistance in some sheep and goat breeds in sub-humid coastal Kenya. Animal Genetics Resources Information Bulletin
Baker, R.L., Mugambi, J.M., Audho, J.O., Carles, A.B. and Thorpe, W.
2002. Comparison of Red Maasai and Dorper sheep for resistance to gastro-intestinal nematode parasites, productivity and efficiency in a humid and a semi-arid environment in Kenya. Proceedings of the seventh world congress on genetics applied to livestock production, Montpellier, France, vol 31, pp. 639–642.
Baker, R.L., Mwamachi, D.M., Audho, J.O., Aduda, E.O. and Thorpe, W.
1999. Genetic resistance to gastro-intestinal nematode parasites in Red Maasai, Dorper and Red Maasai ✕ Dorper ewes in the sub-humid tropics. Animal Science
Baker, R.L., Nagda, S., Rodriguez-Zas, S.L, Southey, B.R., Audho, J.O., Aduda, E.O. and Thorpe, W.
2003. Resistance and resilience to gastro-intestinal nematode parasites and relationships with productivity of Red Maasai, Dorper and Red Maasai ✕ Dorper crossbred lambs in the sub-humid tropics. Animal Science
Cloete, S.W.P., Snyman, M.A. and Herselman, M.J.
2000. Productive performance of Dorper sheep. Small Ruminant Research
1994. Modelling survival data in medical research. Chapman and Hall, London.
2000. Genetic improvement of laying hens viability using survival analysis. Genetics Selection, Evolution
Ducrocq, V., Quaas, R.L., Pollak, E.J. and Casella, G.
1988. Length of productive life of dairy cows. II. Variance component estimation and sire evaluation. Journal of Dairy Science
1986. Sheep production in the tropics and sub-tropics.
Tropical Agricultural Series, Longman Group Ltd, Essex.
Gray, G.D., Woolaston, R.R. and Eaton, B.T.
1995. Breeding for resistance to infectious diseases of small ruminants.
Australian Centre for International Agricultural Research monograph no. 34. ACIAR, Canberra, Australia.
Henryon, M., Berg, P., Jensen, J. and Andersen, S.
2001. Genetic variation for resistance to clinical and subclinical diseases exists in growing pigs. Animal Science
Klein, J.P. and Moeschberger, M.L.
1997. Survival analysis: techniques for censored and truncated data. Springer, New York.
1982. Statistical models and methods for lifetime data. Wiley, New York.
1993. REML estimation for survival models with frailty. Biometrics
Mathsoft, . 1999. S-Plus 2000 user’s guide: statistics, 1999 edition. Mathsoft, Seattle, Washington.
2000. The history of the Dorper sheep. Small Ruminant Research
Mukasa-Mugerwa, E., Lahlou-Kassi, A., Anindo, D., Rege, J.E.O., Tembely, S., Markos, Tibbo and Baker, R.L.
2000. Between and within breed variation in lamb survival and the risk factors associated with major causes of mortality in indigenous Horro and Menz sheep in Ethiopia. Small Ruminant Research
Muller, H.G. and Wang, J.L.
1994. Hazard rate estimation under random censoring with varying kernels and bandwidths. Biometrics
Over, H.J., Jansen, J., Von Olm, P.W.
1992. Distribution and impact of helminth diseases of livestock in developing countries. Food and Agricultural Organization of the United Nations animal production and health paper no. 96. FAO, Rome.
Rege, J.E.O., Tembely, S., Mukasa-Mugerwa, E., Sovani, S., Anindo, D., Lahlou-Kassi, A., Nagda, S. and Baker, R.L.
2002. The effect of breed and season on production and response to infections with gastro-intestinal nematode parasites in sheep in the highlands of Ethiopia. Livestock Production Science
Southey, B.R., Rodriguez-Zas, S.L. and Leymaster, K.A.
2001. Survival analysis of lamb mortality in a terminal sire composite population. Journal of Animal Science
Therneau, T.M. and Grambsch, P.M.
2000. Modelling survival data. Extending the Cox model. Springer, New York.
Traore, A., Peacock, C.P., Mack, S. and Agyemang, K.
1985. Mortality of lambs in African traditional livestock production systems. Veterinary Research Communications
Wallin, L., Strandberg, E., Philipsson, J. and Dalin, G.
2000. Estimates of longevity and causes of culling and death in Swedish warm blood and cold blood horses. Livestock Production Science
1991. Small ruminant production and the small ruminant genetic resource in tropical Africa. Food and Agriculture Organisation animal production and health paper no. 88. FAO, Rome.
Wilson,, R.T., Traore, A. and Mukasa-Mugerwa, E.
1993. Mortality and morbidity of African small ruminants under various management systems. Études et Synthèses de 1’IEMVT
Yazdi, M.H., Rydhmer, L., Cederberg, E.R., Lundeheim, N. and Johansson, K.
2000. Genetic study of longevity in Swedish Landrace sows. Livestock Production Science
Yazdi, M.H., Visscher, P.M., Ducrocq, V. and Thompson, R.
2002. Heritability, reliability of genetic evaluations and response to selection in proportional hazards models. Journal of Dairy Science