@conference {40271,
	title = {Carcass composition of autumn- and spring-born lambs},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {489-492},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The sexual behaviour of alpacas joined under a selective  breeding programme was recorded to assess performance and to examine  ways of providing optimal conditions for mating. Groups of 4 females  and 1 male were joined in paddocks for 5 days (3 groups) or in pens for  3.5 hours on 2 consecutive mornings (3 groups). Sexual activity was  more variable in paddocks compared with pens, and more females were  mated in pens. Duration of copulation was longer in pens that in  paddocks, and for first compared with subsequent matings. Within pens,  sexual activity was more intense during the first hour following joining  than for the subsequent 2.5 hours, on Day 1 than on Day 2, and differed  between groups. Females became more receptive later in the mating  sessions. The study indicated that pen mating using small single-sire  groups, over short periods, was a suitable method of breeding alpacas.  },
	issn = {1176-5283},
	author = {Reid TC and Kirton AH and McQueen IPM}
}
