Comparative performance of British hill sheep breeds and crosses

Journal of Agricultural Science

Volumn 128, Issue 2, 1997, Pages 199-206

  Al Nakib, F M S ^a,e   Bateman, N ^b   Findlay, R H ^b   Smith, C ^c   Thompson, R ^d  

^a Edinburgh School of Agriculture   (United Kingdom)

^b UNIVERSITY OF EDINBURGH   (United Kingdom)

^c UNIVERSITY OF GUELPH   (Canada)

^d ROTHAMSTED RESEARCH   (United Kingdom)

^e NONE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0030818997     PISSN: 00218596     EISSN: None     Source Type: Journal    
DOI: 10.1017/S0021859696003991     Document Type: Article

References (23)

1. AL-NAKIB, F. M. S., FINDLAY, R. H. & SMITH, C. (1986). Performance of different Scottish Blackface stocks and their crosses. Journal of Agricultural Science, Cambridge 107, 119-123.
2. ATKINS, K. D. (1986). A genetic analysis of the components of lifetime productivity in Scottish Blackface sheep. Animal Production 43, 405-419.
3. ATKINS, K., D. & THOMPSON, R. (1986). Predicted and realized responses to selection for an index of bone length and body weight in Scottish Blackface sheep. 2. Correlated responses in lifetime productivity. Animal Production 43, 437-445.
4. CH'ANG, T. S. & ATKINS, K. D. (1982). The implications of sheep crossbreeding: experimental results in Australia. In Proceedings of the World Congress on Sheep and Beef Cattle Breeding, Vol. 1 (Eds R. A. Barton & W. C. Smith), pp. 147-155. Palmerston North, New Zealand: Dunmore Press.
5. CLARK, J. N. (1982). The utilisation of breed resources in the improvement of sheep productivity. Proceedings of the Second World Congress of Genetics Applied to Livestock Production, Madrid 5, 635-654.
6. DONALD, H. P., READ, J. L. & RUSSELL, W. S. (1963). Heterosis in crossbred hill sheep. Animal Production 5, 289-299.
7. FOGARTY, N. M., DICKERSON, G. E. & YOUNG, L. D. (1984). Lamb production and its components in pure breeds and composite lines. II. Breed effects and heterosis. Journal of Animal Science 58, 301-311.
8. HARVEY, W. A. (1972). Least squares and maximum likelihood general purpose programmes. 252K mixed model version. Ohio State University (Mimeo).
9. HIGHT, G. K. & JURY, K. E. (1970a). Hill country sheep production. I. The influence of age, flock, and year on some components of reproduction rate in Romney and Border Leicester x Romney ewes. New Zealand Journal of Agricultural Research 13, 641-659.
10. HIGHT, G. K. & JURY, K. E. (1970b). Hill country sheep production. II. Lamb mortality and birth weights in Romney and Border Leicester x Romney flocks. New Zealand Journal of Agricultural Research 13, 735-752.
11. HIGHT, G. K. & JURY, K., E. (1971). Hill country sheep production. III. Sources of variation in Romney and Border Leicester x Romney lambs and hoggets. New Zealand Journal of Agricultural Research 14, 669-686.
12. HIGHT, G. K. & JURY, K. E. (1973). Hill country sheep production. IV. Ewe live weights and the relationship of live weight and fertility in Romney and Border Leicester x Romney ewes. New Zealand Journal of Agricultural Research 16, 447-456.
13. JAKUBEC, V. (1977). Productivity of crosses based on prolific breeds of sheep. Livestock Production Science 4, 379-392.
14. JAMES, J. W. (1975). Genetic considerations in large field experiments. In Development in Field Experimental Design and Analysis (Eds V. J. Bofinger & J. L. Wheeler), pp. 155-167. Slough: Commonwealth Agricultural Bureaux.
15. MANN, T. J. L., SMITH, C., KING, J. W. B., NICHOLSON, D. & SALES, D. I. (1984). Comparison of crossbred ewes from five crossing sire breeds. Animal Production 39, 241-249.
16. MCGUIRK, B. J. & BOURKE, M. E. (1978). Hybrid vigour and lamb production. I. Reproductive performance of the purebred and crossbred matings. Australian Journal of Experimental Agriculture and Animal Husbandry 18, 745-752.
17. MCGUIRK, B. J., BOURKE, M. E. & MANWARING, J. M. (1978). Hybrid vigour and lamb production. 2. Effects on survival and growth of first-cross lambs, and on wool and body measurements of hogget ewes. Australian Journal of Experimental Agriculture and Animal Husbandry 18, 753-763.
18. NITTER, G. (1978). Breed utilisation for meat production in sheep. Animal Breeding Abstracts 46, 131-143.
19. PURSER, A. F. (1979). Comparison of expected and realised responses in three sheep selection experiments. In Selection Experiments in Laboratory and Domestic Animals (Ed. A. Robertson), pp. 21-30. Slough: Commonwealth Agricultural Bureaux.
20. SINGH, B. & PRAKASH, B. (1986). Factors affecting the body weights in Gaddi sheep and its crosses with Rambouillet and Russian-Merino. Indian Veterinary Journal 63, 143-146.
21. TERRILL, C. E. (1982). Applications of experimental results of crossbreeding of sheep in the United States of America. In Proceedings of the World Congress on Sheep and Beef Cattle Breeding, Vol. 1 (Eds R. A. Barton & W. C. Smith), pp. 115-123. Palmerston North, New Zealand: Dunmore Press.
22. WIENER, G. & HAYTER, S. (1974). Body size and conformation in sheep from birth to maturity as affected by breed, crossbreeding, maternal and other factors. Animal Production 19, 47-65.
23. WIENER, G. & HAYTER, S. (1975). Maternal performance in sheep as affected by breed, cross-breeding and other factors. Animal Production 20, 19-30.