Bovine Colostrum and factors affecting colostrum

Colostrum is that the first milk produced post-partum by mammals and is compositionally distinct from mature milk. Bovine colostrum contains a long history of consumption by humans, and there are variety of studies investigating its potential for applications in human nutrition and health. Extensive characterization of the constituent fractions has identified a wealth of doubtless bioactive molecules, their potential for shaping neonatal development, and therefore the potential for his or her application beyond the time of life.  In these forms, clinical studies have examined bovine colostrum as having the substantial potential to enhance human health. This review discusses the macro-and micronutrient composition of colostrum likewise as describing well-characterized bioactives found in bovine colostrum and their potential for human health. Current gaps in knowledge are identified and future directions are considered so as to elevate the potential for bovine colostrum as a component of a healthy diet for a spread of relevant human populations.

Main Factors Affecting Colostrum Composition

The composition and quality of the bovine colostrum are highly variable thanks to genetic and environmental factors including individuality, breed, parity, the timing of milking, diseases, pre-partum nutrition.

Individual Variation Among Animals

 the concentration of immune gamma globulin (IgG) in bovine colostrum and also the volume of first milking vary among individual cattle. The Jersey cows produce the best (66.5 g/L) whereas Friesian-Holsteins produce the bottom (41.2 g/L) concentrations of IgG among breeds studied. within the case of cow parity, first-calf heifers produce a lower yield of colostrum and lower IgG concentration in colostrum than those cows in their second or greater lactation.

Environmental Factors

The timing of the bovine colostrum milking after parturition has significant effects on concentrations of IgG within the bovine colostrum. Cows calving during the summer months have lower quality colostrum than those calving within the autumn months. The bovine colostrum fat percentage is at 24 and 48 h after birth is suffering from the calving season. Animals born in autumn-winter seasons have the next colostrum fat percentage than those in calving in spring-summer seasons. One cause is also differences in metabolism, feed, and water consumption in several seasons

Fats

Colostrum contains the next percentage of fat than mature milk and therefore the composition of those fats is additionally distinct. O'Callaghan et al.  examined the composition of colostrum and therefore the changes observed during the transition to mature milk, reporting that colostrum is higher in palmitic, palmitoleic, and myristic acids, relative to mature milk. While these fat profiles are well-suited to the developing calf, the profiles of those fats and therefore the higher concentration of saturated fat are related to long-term negative health outcomes, though there's some disagreement within the literature on the extent of support for the role of dairy fats in disorder.

Vitamins/Minerals Found in Colostrum

Notably, axerophthol is reported to be found at high concentrations in colostrum in a very type of forms including retinol, retinal, retinoic acid, retinyl esters and as carotin carotenoids. antihemorrhagic factor is additionally found in greater concentration in colostrum compared to mature milk in two forms, phylloquinone, and menaquinones. cholecalciferol is found in higher concentrations in colostrum than mature milk. vitamin D has important roles in immune activities and promotes the uptake of calcium and phosphorus within the gut. it's two major forms as cholecalciferol (vitamin D3) and ergocalciferol (vitamin D2) and their concentration decreases from 1.2 to 0.36 IU. g−1 during the primary 5 days post-partum. antioxidant and also the B vitamins also are found within the water-soluble fraction of colostrum at a better concentration compared to mature milk and together provide a natural source of essential vitamins critical to human health.