Formulation of Colostrum Supplements, Colostrum Replacers and Acquisition of Passive Immunity in Neonatal Calves
نویسندگان
چکیده
منابع مشابه
Formulation of colostrum supplements, colostrum replacers and acquisition of passive immunity in neonatal calves.
Provision of an adequate mass of IgG from maternal colostrum is essential to health and survival of neonatal calves. Colostrum supplements (CS) have been developed to provide supplemental immunoglobulin when maternal colostrum is of poor quality. However, colostrum replacers (CR) that provide > or = 100 g of IgG have not been formulated. Our objective was to determine the absorption of IgG in n...
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Colostrum is key in establishing the initial immune protection for the neonatal calf. However, colostrum quality is highly variable between and within farms. Therefore, it can be difficult to ensure the calf receives necessary Ig to thrive. Colostrum supplements and replacers were developed to provide additional Ig or to totally replace maternal colostrum. Data concerning efficacy of colostrum ...
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Basic nutrients, minerals, total protein and its fractions in colostrum from cows fed feed supplemented with yeast metabolites (60 g/d/animal) in perinatal period, as well as the level of immunoglobulins in calves’ blood serum on the 2 and 35 d of their life were determined. Additionally, the total immunoglobulin index in calves aged 3-4 weeks was calculated. It was demonstrated that feed with ...
متن کاملColostrum management for dairy calves.
Colostrum management is the single most important management factor in determining calf health and survival. Unfortunately, a significant proportion of North American dairy calves suffer from failure of passive transfer of antibodies from colostrum, contributing to excessively high preweaning mortality rates and other short- and long-term losses associated with animal health, welfare, and produ...
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Following colostrum management training, a randomized field trial was conducted on a California dairy to determine the effect of supplementing pooled colostrum with either colostrum-derived replacer (CDR) or second-milking colostrum (transition milk) on failure of passive transfer (FPT) and preweaning morbidity risks. A total of 166 calves were randomly assigned to 4L first-milking pooled colos...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2001
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(01)74650-4