The effect of individual liveweight and use of teaser rams prior to mating on the reproductive performance of ewe hoggets

New Zealand Veterinary Journal

Volumn 53, Issue 5, 2005, Pages 340-343

  Kenyon, P R ^a   Morel, P C H ^b   Morris, S T ^a   West, D M ^a  

^a MASSEY UNIVERSITY   (New Zealand)

^b MASSEY UNIVERSITY   (New Zealand)

Author keywords

Conception rate; Ewe lamb; Hogget; Liveweight; Mating performance; Pregnancy rate; Ram effect; Submission rate; Teaser; Vasectomised ram

Indexed keywords

ANIMAL; ARTICLE; BODY WEIGHT; BREEDING; FEMALE; LITTER SIZE; MALE; METHODOLOGY; PHYSIOLOGY; PREGNANCY; PREGNANCY RATE; RANDOMIZATION; REPRODUCTION; SEXUAL BEHAVIOR; SHEEP;

ANIMALS; BODY WEIGHT; BREEDING; FEMALE; LITTER SIZE; MALE; PREGNANCY; PREGNANCY RATE; RANDOM ALLOCATION; REPRODUCTION; SEXUAL BEHAVIOR, ANIMAL; SHEEP;

EID: 27144556133     PISSN: 00480169     EISSN: 11760710     Source Type: Journal    
DOI: 10.1080/00480169.2005.36571     Document Type: Article

References (12)

1. Drymundsson OR. Puberty and early reproductive performance in sheep. 1. Ewe lambs. Animal Breeding Abstracts 41, 273-289, 1973
2. Drymundsson OR, Lees JL. Effect of rams on the onset of breeding activity in Clun-Forest ewe lambs. Journal of Agricultural Science 79, 269-271, 1973
3. Edgar DG, Bilkey DA. The influence of rams on the onset of the breeding season in ewes. Proceedings of the New Zealand Society of Animal Production 23, 78-87,1963
4. Jainudeen MR, Wahid H, Hafez ESE. Sheep and goats. In: Hafez ESE, Hafez B (eds). Reproduction in Farm Animals. 7th Edtn. Pp 172-181. Lippincott Willams and Wilkins, Baltimore, USA, 2000
5. Kenyon PR, Perkins NR, Pinchbeck GL, Morris ST, West DM. Identifying factors which maximise the lambing performance of hoggets: a cross sectional study. New Zealand Veterinary Journal 52, 371-377, 2004
6. Knight TW. Ram-induced stimulation of ovarian and oestrus activity in anoestrous ewes - a review. Proceedings of the New Zealand Society of Animal Production 43, 7-11, 1983
7. Knight TW, Oldham CM, Lindsay DR, Smith JF Variation in the fertility of ewes during the joining period and its modification by prior contact with rams. Australian Journal of Agricultural Research 26, 577-583, 1975
8. McMillan, WH, Moore RW Capitalizing on hogget oestrus. Proceedings of the 13th Seminar the Society of Sheep and Beef Cattle Veterinarians of the New Zealand Veterinary Association 13, 47-52, 1983
9. Meyer HH, French RL. Hogget liveweight-oestrous relationship among sheep breeds. Proceedings of the New Zealand Society of Animal Production 39, 56-62, 1979
10. O’Riordan EG, Hanrahan JP Advancing first estrus in ewe lambs. Farm and Food Research 20, 25-27, 1989
11. Schinckel PG. The effect of the ram on the incidence and occurrence of oestrus in ewes. Australian Veterinary Journal 30, 189-195, 1954
12. Smith JF, Knight TW. Reproductive management of sheep. In: Fielden ED, Smith JF (eds). Reproductive Management of Grazing Ruminants in New Zealand. Pp 113-143. New Zealand Society of Animal Production, Hamilton, New Zealand, 1998