Management of photoperiod to control caprine reproduction in the subtropics

dc.contributor	Delgadillo, JA
dc.contributor	Fitz-Rodr�guez, G
dc.contributor	Duarte, G
dc.contributor	Veliz, FG
dc.contributor	Carrillo, E
dc.contributor	Flores, JA
dc.contributor	Vielma, J
dc.contributor	Hernandez, H
dc.contributor	Malpaux, B
dc.date.accessioned	2012-01-30T16:38:41Z
dc.date.available	2012-01-30T16:38:41Z
dc.date.issued	2004
dc.identifier.citation	Rep. Fert. Dev. (2004) 16(4): 471-478
dc.identifier.issn	1031-3613
dc.identifier.uri	http://livestocklibrary.com.au/handle/1234/16957
dc.description.abstract	Reproductive seasonality is observed in some breeds originating from or adapted to subtropical latitudes. In ?photoperiodic flexible breeds?, such as Australian cashmere goats, the annual breeding season can be manipulated through nutrition, whereas in ?photoperiodic rigid breeds?, such as Creole goats from subtropical Mexico, sexual activity can be controlled by altering the photoperiod. In males from the latter breed, artificial long days, whether or not accompanied by the administration of melatonin, stimulate sexual activity during the non-breeding season. These treated males are able to induce the sexual activity of anoestrous females through the male effect under intensive or extensive conditions. Photoperiodic treatments and the male effect can be easily integrated into different breeding management systems in subtropical latitudes.
dc.publisher	CSIRO Publishing
dc.source.uri	http://www.publish.csiro.au/?act=view_file&file_id=RD04030.pdf
dc.subject	goats
dc.subject	reproductive seasonality
dc.subject	melatonin
dc.subject	male effect
dc.title	Management of photoperiod to control caprine reproduction in the subtropics
dc.type	Research
dc.description.version	Journal article
dc.identifier.volume	16
dc.identifier.page	471-478
dc.identifier.issue	4