Factors Affecting Serum Total Protein and Immunoglobulin G Concentration in Replacement Dairy Calves

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Factors Affecting Serum Total Protein and Immunoglobulin G Concentration in Replacement Dairy Calves

Evaluation of dairy replacement calf health is generally divided into the pre-weaning and post-weaning periods; with an average weaning age of 8.6 weeks [1]. In 2007, the NAHMS Dairy study found that the pre-weaning period accounts for about 81% of total dairy replacement calf mortality [1]. Accordingly, management strategies to optimize health during this period will have the greatest impact o...

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Colostral immunoglobulin G as a predictor for serum immunoglobulin G concentration in dairy calves

Feeding newborn calves high-quality colostrum is of well-recognised importance as calves that do not receive an adequate concentration of immunoglobulin-G (IgG) have an increased risk of morbidity and mortality. This experiment aimed to characterise IgG concentrations in colostrum from the first milking in New Zealand dairy cows, examine IgG status of calves, and to evaluate the use of a refrac...

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Influence of injectable immunoglobulin on serum immunoglobulin concentrations in dairy calves.

The influence of a purified Ig preparation on morbidity, mortality, and performance of purchased calves was evaluated. Calves (n = 187) were 3 to 8 d of age and were infused i.v. (blocks 1 and 2) or s.c. (blocks 3 and 4) with a purified Ig preparation derived from bovine blood that was obtained from an abattoir (n = 88) or were infused with 0.9% NaCl saline (n = 99). The Ig solution was purifie...

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Factors associated with the concentration of immunoglobulin G in the colostrum of dairy cows.

Transfer of sufficient immunoglobulin G (IgG) to the neonatal calf via colostrum is vital to provide the calf with immunological protection and resistance against disease. The objective of the present study was to determine the factors associated with both colostral IgG concentration and colostral weight in Irish dairy cows. Fresh colostrum samples were collected from 704 dairy cows of varying ...

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Factors Affecting High Mortality Rates of Dairy Replacement Calves and Heifers in the Tropics and Strategies for Their Reduction

The tropics is not an ideal location for calf rearing as the high temperatures and humidities introduce many potential disease problems to milk fed calves. In addition, the type of dairy farming (generally poorly resourced small holder farming) and the general lack of awareness of the long term implications of poorly reared stock do not encourage farmers to pay close attention to their calf and...

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ژورنال

عنوان ژورنال: Advances in Dairy Research

سال: 2013

ISSN: 2329-888X

DOI: 10.4172/2329-888x.1000106