000256194 001__ 256194
000256194 005__ 20180123010030.0
000256194 037__ $$a1869-2017-123
000256194 041__ $$aeng
000256194 245__ $$aProduction of Hair Sheep Using Accelerated Lambing and an Extensive Management System in the Tropics
000256194 260__ $$c2004
000256194 269__ $$a2004-07-19
000256194 300__ $$a9
000256194 336__ $$aConference Paper/ Presentation
000256194 520__ $$aSt. Croix White and Barbados Blackbelly hair sheep ewes were managed using accelerated lambing in an extensive management system. Ewes grazed guinea grass (Panicum maximum) in a rotational grazing system throughout the year. Single sire breeding took place during 35-d periods in February, June or October with each flock producing three lamb crops every 2 years. Lambs were weaned at 63 d of age. Overall ewe fertility was 89.8% and prolificacy was 1.77 lambs per ewe lambing. Ewes that were bred in October had higher prolificacy (P < 0.0001) than ewes that were bred in February or June (1.87 vs 1.64 vs 1.73 lambs per ewe lambing, respectively). Ewes bred during October produced more triplets and fewer singles (P < 0.0001) than ewes bred at other times of the year. Ewe productivity, expressed as the ratio of litter weaning weight to ewe body weight, increased (P < 0.0001) from 41.6 to 50.3%) during a 10-yr period. These results show that hair sheep productivity can be sustained and enhanced using accelerated lambing and extensive management in the tropics.
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000256194 546__ $$aEnglish
000256194 650__ $$aAgricultural and Food Policy
000256194 650__ $$aCrop Production/Industries
000256194 6531_ $$aSheep
000256194 6531_ $$aProduction
000256194 6531_ $$aLambs
000256194 6531_ $$aTropics
000256194 6531_ $$aManagement
000256194 700__ $$aGodfrey, R.W.
000256194 700__ $$aCollins, J.R.
000256194 700__ $$aHensley, E.L.
000256194 700__ $$aBuroker, H.A.
000256194 700__ $$aBultman, J.K.
000256194 700__ $$aWeis, A.J
000256194 8560_ $$fsheeh247@umn.edu
000256194 8564_ $$s2619025$$uhttp://ageconsearch.umn.edu/record/256194/files/15.pdf
000256194 909CO $$ooai:ageconsearch.umn.edu:256194$$pGLOBAL_SET
000256194 980__ $$a1869