สืบค้นงานวิจัย
Study of genetic and non genetic factors affecting age at first calving and wet average in Mehsana buffaloes (Buffalo Bulletin,38(1))
P.A. Patel - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Study of genetic and non genetic factors affecting age at first calving and wet average in Mehsana buffaloes (Buffalo Bulletin,38(1))
ผู้แต่ง / หัวหน้าโครงการ (EN): P.A. Patel
หน่วยงานสังกัดผู้แต่ง (EN): Mehsana (India)
บทคัดย่อ (EN): Mehsana buffalo is one of the best dairy breed of buffalo in Gujarat state. The aim of this study was to analyse the effects of non-genetic factors on Age at first calving (AFC) and Wet average (WA). The data set comprised 12560 records up to three lactations of 7870 Mehsana buffaloes, sired by 200 bulls from 1989 to 2013 under field progeny testing programme of Dudhsagar Research and Development Association (DURDA), Dudhsagar Dairy, Mehsana. The least squares maximum likelihood (LSML) program was used for estimation of various non-genetic factors on AFC and WA. The least squares mean with standard error of AFC and WA were 1383.30+-3.50 days and 7.00+-0.22 lit. Highly significant (P LT 0.01) effect of season and period of birth was recorded on AFC however, effect of clusters on AFC was observed to be non-significant (P LT 0.05). Further, highly significant (P LT= 0.01) effect of all the non-genetic factors (parities, season of calving, clusters, period of calving and age at first calving group) under study was observed on wet average in Mehsana buffaloes. The heritability of AFC and WA were estimated as0.11+-0.02 and 0.34+-0.03 respectively. Heritability of traits are useful for prediction of genetic response to selection and measure for accuracy in selection. Very high and significant estimate of heritability of WA. It was concluded that selection of Mehsana buffaloes may be based on this production trait in the herd.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://kukr.lib.ku.ac.th/db/kukr/search_detail/result/387357
คำสำคัญ (EN): India
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P.A. Patel. "Study of genetic and non genetic factors affecting age at first calving and wet average in Mehsana buffaloes (Buffalo Bulletin,38(1))". ไม่ระบุหน่วยงาน. ม.ป.ป.

P.A. Patel. "Study of genetic and non genetic factors affecting age at first calving and wet average in Mehsana buffaloes (Buffalo Bulletin,38(1))". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Study of genetic and non genetic factors affecting age at first calving and wet average in Mehsana buffaloes (Buffalo Bulletin,38(1))
P.A. Patel
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Genetic and non genetic factors affecting some udder measurements in Nili Ravi buffaloes of Pakistan (Buffalo Bulletin,38(3)) Non - genetic factors affecting monthly test day milk yields in Murrah buffaloes (Buffalo Bulletin,39(2)) Non-genetic factors affecting first lactation milk yield of Jaffarabadi buffalo in organized farm of India (Buffalo Bulletin,37(4)) Histopathological study of endometritis in slaughtered buffaloes (Buffalo Bulletin,38(4)) Factors affecting swamp buffalo production in Songkhram wet land, Nakhon Phanom province, Thailand (Buffalo Bulletin,38(1)) Morphological study in Azeri and Khuzestani buffaloes of Iran (Buffalo Bulletin,38(1)) Studies on effect of non-genetic parameters on mortality pattern in Murrah buffaloes (Buffalo Bulletin (Thailand),35(3)) Onion toxicosis in buffaloes (Buffalo Bulletin,38(2)) The effect of age at first calving on productive life and lifetime profit in lactating Egyptian buffaloes (Buffalo Bulletin,40(1)) Factors affecting mortality prototype in Murrah buffaloes: A review (Buffalo Bulletin,38(3))
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