Download Reproductive and Developmental Behaviour in Sheep. An by A.F. Fraser (Eds.) PDF

By A.F. Fraser (Eds.)

Even supposing in depth husbandry is more and more utilized to sheep, so much sheep construction worldwide continues to be in keeping with the large procedure. less than those stipulations, makes an attempt to enhance productiveness needs to take specific account of reproductive and developmental behaviour, as profitable sheep creation relies seriously on optimum copy and improvement. those themes are awarded during this anthology of chosen guides on sheep behaviour. The papers were taken from ten years of utilized Animal Ethology (now utilized Animal Behaviour technology) from its inception in December 1974 to the tip of its booklet lower than that identify in 1984

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Additional resources for Reproductive and Developmental Behaviour in Sheep. An Anthology from “Applied Animal Ethology'”

Sample text

By recording the proportion of ewes marked by the males in each group every two days commencing 15 days after the initial introduction of males, the comparative efficiency of treated wethers and vasectomised rams in inducing anoestrous ewes to comFLOCKl % OF FLOCK M A R K E D FLOCK 2 FLOCK 3 FLOCK 4 21 23 25 27 DAYS AFTER INITIAL I N T R O D U C T I O N O F M A L E 30 ANIMALS Fig. 1. The percentage of ewes marked by vasectomised rams after initial introduction of vasectomised rams (solid blocks) or wethers (treated with TP) (shaded blocks) or by wethers after initial introduction of wethers (open blocks) in Flocks 1, 2, 3 and 4 at the days specified.

Agric. , 9: 971—980. H. , 1 9 6 7 . Studies in flock mating of sheep. 1. Mating behaviour. Aust. J. Exp. Agric. Anim. , 7: 103—109. H. , 1 9 7 3 . Studies in flock mating in sheep. 5. Incidence, duration and effect on flock fertility of initial sexual inactivity in young rams. Aust. J. Exp. Agric. Anim. , 1 3 : 35—41. J. , 1 9 5 4 . Clinical observations on the reproductive organs of Merino rams in pastoral Queensland. Aust. Vet. , 3 0 : 353—363. , 1 9 6 9 . Scrotal abnormalities in rams in tropical Queensland with particular reference t o Ovine Brucellosis and its control.

J. Exp. Agric. Anim. , 12: 13—18. C. , 1 9 7 0 . The comparative reproductive performance of ewes joined to one of three per cent of rams. Proc. Aust. Soc. Anim. , 8: 317—320. , 1 9 7 0 . Estimation of o p t i m u m time for insemination of gilts and ewes by double-mating at certain times relative to ovulation. J. Reprod. , 22: 277—282. , 1 9 6 5 . Talking about tupping. Proc. , Dep. Agric, Wellington, pp. 61—69. , 1 9 6 5 . Semen quality of Merino rams. 1. The effects of fleece length and season on semen quality.

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