REVIEW: Colostrum supplements and replacers for dairy calves
نویسندگان
چکیده
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 supplements and replacers have been inconsistent. This review presents data from several publications using different types of colostrum supplements and replacers and notes their effects on IgG uptake in neonatal calves and kids.
منابع مشابه
The Role of Oral Immunoglobulins in Systemic and Intestinal Immunity of Neonatal Calves
Neonatal dairy animals are born agammaglobulinemic and must obtain immunoglobulins (Ig) during the period of macromolecular transport within the first 24 h of life. Maternal colostrum has been the traditional source of Ig and recommendations for provision of 2 L of colostrum in two separate feedings within the first 24 h are widespread. However, stubbornly high levels of neonatal mortality and ...
متن کاملFormulation 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...
متن کاملShort communication: effect of pH on absorption of immunoglobulin G in neonatal calves.
We fed newborn calves (n = 60) maternal colostrum (n = 12) or a colostral supplement product derived from edible bovine serum (n = 48). Sodium citrate was added to supplements to achieve a final pH of 7.5, 7.0, 6.0, and 5.0. Calves were fed colostrum (2 L/feeding) or supplement (454 g reconstituted in 2 L of water) at 1.2 and 12.6 h of age, which provided a total of 156 (colostrum) or 90 (suppl...
متن کاملEffect of dietary IgG source (colostrum, serum, or milk-derived supplement) on the efficiency of Ig absorption in newborn Holstein calves.
This study was designed to compare the absorptive efficiency of IgG from a commercial bovine serum product (bovine serum), cow colostrum (positive control), and two commercial milk-derived IgG supplements (supplement 1 and supplement 2). Newborn Holstein calves, collected at birth and prior to the consumption of colostrum, were allotted to treatment by alternating birth order. Colostrum supplem...
متن کاملAddition of casein or whey protein to colostrum or a colostrum supplement product on absorption of IgG in neonatal calves.
The effects of the addition of nonimmunoglobulin protein on absorption of immunoglobulin G (IgG) from colostrum or colostrum supplement products were determined in two experiments. In experiment 1, 48 Holstein calves were fed 4 L of pooled maternal colostrum or 4 L of reconstituted colostrum supplement with 0, 200, or 400 g of added whey protein concentrate or casein. In experiment 2, 38 Jersey...
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