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Read or Download Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals: A Seminar in the CEC Programme of Co-ordination of Research on Livestock ... 1984 (Current Topics in Veterinary Medicine) PDF
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Extra info for Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals: A Seminar in the CEC Programme of Co-ordination of Research on Livestock ... 1984 (Current Topics in Veterinary Medicine)
7 Oct. Date of final oestrus 6 Mar. 5 Mar. 4 Apr. 5 Apr. 2 Feb. Length of the Anoestrum (days) 191 190 160 147 247 37 The main results of the experiment are summarised in table 3 and the values given for the various parameters represent the mean of the observations taken over two seasons for all breeds with the exception of the Scottish Blackface which was present for only one season and will be considered separately. The mean date of onset of the breeding season was similar for all breeds with the exception of the Finn-Dorset which commenced cycling approximately two weeks earlier than the other breeds.
1983. Factors effecting the quality of ram semen. In: Sheep Breeding. Edited by W. Haresign. Chapter 23, pp 453-466. Butterworths, London. A. 1982. Induction of ovulation and cyclic activity in anoestrous ewes with testosterone treated wethers and ewes. Theriogenology, 17, 349-354. T. and Courot, M. 1981. Seasonal variations in rete testis fluid secretion and sperm production in different breeds of ram. J. Reprod. , 61, 363-371. E. B. 1975. Breed, heterosis and environmental influences on growth and puberty in ewe lambs.
54, 389-392. J. 1975. Effects of seasons on postpartum characteristics of sheep being selected for year-round breeding and on puberty of their female progeny. Can. J. Anim. , 55, 487-492. R. 1973. Puberty and early reproductive performance in sheep. 1. Ewe lambs. Anim. Breed. , 41, 273-289. -r983. The influence of environmental factors on the attainment of puberty in ewe lambs. In: Sheep Breeding. Edited by W. Haresign. Chapter 20, pp 393-408. G. A. 1963. The influence of rams on the onset of the breeding season.