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Please use this identifier to cite or link to this item: http://142.54.178.187:9060/xmlui/handle/123456789/18163
Title: LACTATING LENGTH AND ITS BEHAVIOUR IN NILI-RAVI BUFFALOES
Authors: M.S. Khan and H.Z. Chaudhry
Keywords: Lactation length
Nili-Ravi buffalo.
Issue Date: 5-Apr-2000
Publisher: Faisalabad: facukty of veterinary science univerisity of agriculture, faisalabad
Citation: Khan, M. S., & Chaudhry, H. Z. (2000). Lactating length and its behaviour in Nili-Ravi buffaloes. Pakistan Veterinary Journal, 20(2), 81-84.
Abstract: Behaviour of lactation length in Nili-Ravi buffaloes and its relationship with other economic traits was studied using 2704 lactations of 993 buffaloes. Lactations shorter than eight weeks were not included in the data set. About 59% of the lactations had length shorter than the standard lactation of 10 months. Lactation length averaged 289.5 days for an average milk yield of 1984 kg. Lactation curves were different for first and later parities with different days in milk. Year effeced (P<0.01) lactation length while season did not. Yet, interaction of year and season was significant (P<0.01). Age at calving within parity also had an effect (P<0.01) with first parity buffaloes having the highest average (280.4+6.25 days). The trait was 25% repeatable. Phenotypic trend in the trait was positive, with least squares means for 1970-71 (227.4+14.03 days) and 1996-97 (300.9+13.86 days) being different by about 10 weeks. Further studies should be carried out to find out causes for this positive trend.
URI: http://142.54.178.187:9060/xmlui/handle/123456789/18163
ISSN: 0253-8318
Appears in Collections:Issue 02

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