Some years ago, Theobald Smith and his associates (1) showed that passive immunity acquired by the new-born calf from colostrum is of prime importance in protection against infectious disease. At about the same time, Orcutt and Howe (2) observed that, after the ingestion of colostrum, agglutinins appear in the calf serum associated with a globulin which is precipitable at low concentrations of ...

BACKGROUND Heat-treatment of colostrum is a method developed to reduce calf exposure to pathogens. Infrared (IR) spectroscopy and Brix refractometers can be used for measuring colostral IgG concentration and assessing colostrum quality. OBJECTIVES To determine the impact of heat-treatment on accuracy of IR spectroscopy and Brix refractometers for measuring colostral IgG concentration and asse...

Survival of the neonatal calf is largely dependent on humoral immunity. The objective of three experiments reported here was to compare cow serum immunoglobulin (Ig) concentration, colostrum yield, composition and Ig concentration and calf serum Ig concentrations at ~8and 48-h post partum of spring-calving Charolais (C) and Beef × Holstein-Friesian (BF) cows and their progeny. Cows were individ...

Colostrum or transitional milk is the most important source of nutrition within first days a calf’s life. It only macro and micro elements for newborns. The accumulation data in scientific publications on mineral content bovine colostrum slow because researchers primarily focus peculiarities biochemical, particular, globulin composition.
 Aim. To study systematize available published its p...

Milk gangliosides have gained considerable attention because they participate in diverse biological processes, including neural development, pathogen binding, and activation of the immune system. Herein, we present a quantitative measurement of the gangliosides present in bovine milk and other dairy products and byproducts. Ultrahigh performance liquid chromatography separation was used for hig...

The first objective of this study was to describe the effect of on-farm heat treatment of colostrum on colostral bacteria counts and IgG concentrations. The second objective was to describe the effect of feeding heat-treated (vs. raw) colostrum on passive transfer of colostral immune and nutritional parameters in neonatal calves. Pooled batches of colostrum were mixed and divided equally: one h...

In connection with a recent study on human milk fat (1.) an opportunity was afforded to measure qualitatively and quantitatively the fatty acid distribution in the fat from human milk collected during the first 3 days of lactation. Some differences in composition were observed ,for these colostrum samples when they were compared with mature human milk fat. It was considered desirable therefore ...

PURPOSE Nutrients and immunological factors of breast milk are essential for newborn growth and the development of their immune system, but this secretion can contain organic and inorganic toxins such as barium. Colostrum contamination with barium is an important issue to investigate because this naturally occurring element is also associated with human activity and industrial pollution. The st...

It has already been reported that the principal protein of bovine colostrum is immune lactoglobulin, and a procedure has been described for the isolation of this protein (1). While the immune properties of colostrum have been generally recognized, it is widely believed that this is a specific quality of colostrum, and that immune properties are absent from the later milk or are present only in ...

The oestrogenic activity of human colostrum (Lacassagne & Nyka, 1934) and the undoubted importance of colostrum for the neo-natal calf led us to test bovine colostrum for oestrogenic activity. Oestrogens found in animal tissues and body fluids during the past 23 years, in particular those in pregnant-cow bile (Pearlman, Rakoff, Cantarow & Paschkis, 1947), have always been phenolic in chemical n...