Before weaning, calves mainly use mother's milk and water as the main source of nutrition, and after weaning, they mainly use starter feed, and rumen function begins to be established. The changes in nutrients before and after weaning lead to the transformation of the gastrointestinal microecosystem, and the rumen microorganisms also have corresponding changes, at this time, the intestinal lactic acid bacteria decrease, and the harmful bacteria such as Escherichia coli begin to multiply, resulting in a significant increase in the incidence of calf diarrhea. Weaning can also cause diarrhoea due to stress on calves, as can changes in the external environment.
At present, the most prominent thing in standardized and large-scale cattle farms is the high incidence of calf diarrhea disease, and the survival rate of calves is low, resulting in low breeding efficiency. When it is injected with drugs, it often causes a series of complications, increases the risk of drug residues, and even affects the later growth of calves, resulting in a decline in the economic benefits of cattle raising by farmers. In recent years, the addition of compound probiotics to calf feed has been used to prevent calf diarrhea and help rumen health care with good results.
1. Mechanism of action of compound probiotics
1. Improve the rumen environment: Compound probiotics can improve the rumen environment by adjusting the microbial balance in the rumen of calves, inhibiting the growth and reproduction of harmful bacteria, reducing the concentration of ammonia nitrogen in the rumen, and reducing harmful gas emissions.
2. Promote digestion and absorption: compound probiotics can improve the activity of rumen enzymes in calves, promote feed decomposition, increase the production of volatile fatty acids (VFAs), improve feed utilization, and promote the growth and development of calves.
3. Enhance immunity: Compound probiotics can enhance the immune function of calves, improve disease resistance, and reduce the risk of disease.
2. The importance of rumen health care in the early stage of calves
The early calf period is a critical stage of growth and development, and rumen health has an important impact on its growth performance and subsequent production performance. A good rumen environment is conducive to the digestion and absorption of feed by calves, reduces the occurrence of digestive tract diseases, improves immunity, and thus improves the overall breeding efficiency.
3. The role of compound probiotics in rumen health care of calves
1. Promote the establishment of rumen microbial community: After calf birth, the establishment of rumen microbial community is a gradual development process. The probiotic complex accelerates this process and helps the calves adapt to the solid feed more quickly.
2. Improve the rumen fermentation environment: By increasing the number of beneficial microorganisms in the rumen, compound probiotics help to maintain the stability of the rumen environment and promote the decomposition and absorption of nutrients.
3. Enhance calf immunity: Probiotics can stimulate the immune system of calves and improve their resistance to diseases.
4. Reduce the incidence of disease: By improving gut health, probiotic complex helps reduce the occurrence of digestive diseases in calves.
Fourth, the use of compound probiotics
Early intervention: Complex probiotics are used in the early years after the birth of calves to promote the early establishment of the rumen microbial community.
Regular addition: Depending on the growth stage and health status of the calves, compound probiotics are added to the feed regularly. Taking the special compound probiotics for cattle and sheep breeding as an example, according to 1 package of 1 kg mixed with 1 ton of concentrate, long-term use.
5. Research progress and case analysis
In recent years, a number of studies have shown that the application of compound probiotics in rumen health care of calves has a significant effect. For example, one study found that adding a specific probiotic complex to calf feed resulted in a 10% increase in daily weight gain and a 30% reduction in the incidence of diarrhoea.
conclusion
In summary, compound probiotics have a significant effect in the early rumen health care of calves, which can effectively improve the rumen environment, promote digestion and absorption, increase growth rate, enhance immunity, and reduce the risk of morbidity. Therefore, in the process of calf breeding, it is of great significance to add compound probiotics in an appropriate amount.
In short, with the rapid development of animal husbandry in the mainland, the calf breeding industry is also growing. As a new type of biological feed additive, compound probiotics have broad application prospects in the early rumen health care of calves. In actual production, farmers should reasonably add compound probiotics according to the growth and development needs of calves and the actual situation, so as to improve the efficiency of calf breeding and promote the healthy development of animal husbandry in the mainland.