References
- Alexander , G. , Steven , D. , Kilgour , R. , de Langen , H. , Mottershead , B. E. and Lynch , I. J. 1983 . Separation of ewes from twin lambs. Incidence of several sheep breeds . Applied animal ethology , 10 : 301 – 317 .
- Everitt , B. S. 1977 . The analysis of contingency tables , London : Chapman and Hall .
- Kilgour , R. , Alexander , G. and Stevens , D. 1982 . A field study of factors interrupting bonding of ewes and twins . Proceedings of the Second Asia-Oceania Congress of Perinatology , 2 : 118 – 123 .
- Knight , T. W. , Lynch , P. R. , Hall , D. R. H. and Hockey , H. U. P. 1988 . Identification of factors contributing to the improved lamb survival in Marshall Romney sheep . New Zealand journal of agricultural research , 31 : 259 – 271 .
- Knight , T. W. , McMillan , W. H. , Kilgour , R. , Hockey , H. U. P. and Hall , D. R. H. 1989 . Effects of slope of lambing site on lambs slipping and lambmortality . New Zealand journal of agricultural research , 32 : 199 – 206 .
- Mackereth , V. 1979 . How “Marshall Romneys” began . New Zealand farmer , 100 : 24 – 26 .
- Owen , J. L. and Armstrong , J. R. 1985 . Diagnosis of foetal number in prolific Booroola-cross sheep . Proceedings of the New Zealand Society of Animal Production , 45 : 155 – 157 .
- Smeaton , D. C. , Summer , R. M. W. , Knight , T. W. and Wadams , T. K. 1983 . Effects oftime of weaning, pasture allowance, and shearing time on ewe and lamb liveweight, wool growth and subsequent ovulation rate of the ewe . New Zealand journal of agricultural research , 11 : 41 – 45 .
- Welch , R. A. S. and Kilgour , R. 1970 . Mis-mothering among Romneys . New Zealand journal of agriculture , 124 : 26 – 27 .