Estimates of lactation curve parameters for Bonsmara and Nguni cattle using the weigh-suckle-weigh technique
نویسندگان
چکیده
منابع مشابه
Comparison of weigh-suckle-weigh and machine milking for measuring ewe milk production.
Thirteen crossbred ewes were used to compare weigh-suckle-weigh (WSW) and machine milking (MM) methods for determining milk production of ewes that were rearing single or twin lambs. At parturition, ewes were 13 mo of age and produced six single lambs and seven pairs of twin lambs. Milk production estimates were initiated on d 6 of lactation and a 3-d rotation of the two techniques was implemen...
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Counts of engorged female ticks on naturally infested cattle over a 2 year period, showed that indigenous Nguni cattle harboured significantly fewer Amblyomma hebraeum, Boophilus decoloratus and Hyalomma spp. during periods of peak abundance than either Bonsmara or Hereford cattle. Fewer abscesses, associated with tick bite, were also present in the Nguni cattle. Individual tick resistance indi...
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ژورنال
عنوان ژورنال: South African Journal of Animal Science
سال: 2014
ISSN: 2221-4062,0375-1589
DOI: 10.4314/sajas.v43i5.2