The good management strategies for dairy cattle are designed to prepare the cow for lactation and to minimize the incidence of metabolic diseases in the time of calving. High production of milk is followed by numerous problems generated during the dry period. Proper nutrition and management during the transition period is critical to successful lactation. The Research data indicated that probiotic additives and multienzyme composition supplementation to dairy cows increased cow’s productivity, decreased SCC values in milk and improve milk fat as well.
The well accepted probiotics strain of yeast culture (Saccharomyces cerevisiae) used as a dietary supplement for dairy cattle to improve rumen function, and hence milk production and feed efficiency, by stimulating selective growth of rumen bacteria species (Harrison et al., 1988). Feeding yeast or its fermentation products during the transition period may counteract some of those challenges by improving appetite, nutrient utilisation and immune function. The diet of S. cerevisiae to dairy cows during the close-up dry and the early lactation period significantly reduced rumen pH and rumen ammonia nitrogen, while significantly increased rumen total VFAs content and Serum glucose is significantly increased in the yeast-supplemented animals. S. cerevisiae was able to compete with other starch utilizing bacteria for fermentation of starch (Lynch and Martin, 2002) leading to the prevention of lactate accumulation in the rumen (Chaucheyras et al., 1995). Chaucheyras et al. (1995) also reported that S. cerevisiae had the ability to provide growth factors, such as organic acids or vitamins, thereby stimulating ruminal populations of cellulolytic bacteria.
The beneficial bacterial strain of bacillus subtilis supplement may be capable of affecting rumen fermentation and microbial profile. Sun et al. (2013) showed that Bacillus subtilis supplementation increased amylolytic, proteolytic, and total bacteria, and reduced total protozoa in rumen fluid. Moreover, research study showed that rumen fluid of cows fed Bacillus subtilis had increased total volatile fatty acids (VFA), propionate, and valerate concentrations, and reduced acetate concentration and pH. Peng et al. (2012) also observed an increase in propionate and a reduction in acetate proportions in total VFA, suggesting increased energetic efficiency of the ruminal fermentation when Bacillus subtilis were fed. The study data addresses the hypothesis that lactating dairy cows fed Bacillus subtilis can improve the lactational performance with positive changes in milk composition.
Forages are generally the cheapest form of feeding ruminants; they can limit dairy cow performances when used as the only feed source. Dairy cow consuming forages may not have enough energy intakes for optimum milk yield during lactation, daily gain or fetus growth. Cereals and oilseeds have been the most important sources of energy and protein for ruminant production. Ruminants are well adapted to utilize plant cell walls, and the degradation thus by the animals is of vital worth. However, even under perfect feeding program, cell wall digestibility in the total gastrointestinal tract is less than 65%. Feed Multi enzymes mixtures have an important role to play in modern farming systems. The use of enzymes to improve the nutritive value of ruminant feeds seems to be a greater challenge than in case of non ruminant animals since the digestive tract of ruminants is far more complex than that of chickens and ruminants digest non starch polysaccharides with high efficiency. Application of successful multienzyme supplement concept in ruminant nutrition carry to provides better digestion and improves nutrient requirements of animal.
Zagro pioneer development of ZYMEYEAST 100 composed of live dry yeast cultures selected from strains of Saccharomyces cerevisiae and combination with bacillus subtilis and NSP & digestive enzymes which have the ability to modify the fermentation in rumen stimulating the development of ruminal bacteria and increasing the fibre digestion. The proven dosage rate of Zymyeast 100 direct fed for calves 5g per day and 10-15g per day for milking animals
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