1,Dairy production problems:
Low content of milk protein;
Perinatal cows susceptible to fatty liver and ketosis;
Shortage in protein feed, high feed costs
Rumen protected Methionine
Rumen protected Lysine
Rumen protected Choline Chloride
Rumen protected Nicotinic Acid
2.The reason for the problem:
1) Low content of milk protein
Nutrition: milk protein synthesis requires amino acids and energy. Milk protein production is related to the necessary amino acid uptake in breast tissue. Amino acids can only be effectively absorbed and utilized by animals under sufficient and balanced supply conditions. Amino acid imbalance limits dairy cow milk protein synthesis and reduces its lactation performance. Methionine and Lysine are limiting factor in the synthesis of milk protein, Feed with supplemented methionine and Lysine can increase milk protein.
2) Perinatal dairy cow susceptible to fatty liver and ketosis
In the late pregnancy, due to the rapid development of the fetus and lactation reserves, dairy cows in vivo hormonal levels and energy balance has undergone tremendous changes, resulting in reduced feed intake and, negative balance of the body energy. In order to meet the energy needs,cows will use too much of body fat, resulting in rapidly increased concentration of serum free fatty acids and ketone, causing fatty liver and ketosis.
3) Shortage of protein feed
With the shortage of protein resources, the problem of fight for grain becomes increasingly severe between livestock and human, how to use alternative products, improve the effective use of resources is the aspirations of all livestock practitioners.Prohibition the use of animal-derived feed in ruminants is making more tensive pressure in supply of protein feed. Non-protein nitrogen is a nitrogen source that can be used by adult ruminants. In the rumen, it can be synthesized by rumen microbes to produce high quality microbial protein. Urea, as a common non-protein nitrogen,provides high concentrations of nitrogen source. Its degradation,however, in the rumen is faster than the consumption speed by the microbials, results in reducing the utilization rate of nitrogen sources, even severe ammonia poisoning and the worst to death of the animals.
4) Heat stress
The feed intake by dairy cows may be affected by the environmental temperature, in other words, dairy cows may suffer from heat stress,and lead to depressed feed consumption,reduced milk production and decreased composition of milk protein and butterfat. In addition, high temperature leads to a series of heat stress responses such as hot asthma,respiratory alkalosis,and enhanced peroxidation in body,and etc, result in decreased production and reproduction performance,this further could possibly promote nutrients re-distribution in body to meet nutritional demand under high temperature conditions.
1) Improve milk quality
From the early stages of lactation, began to feed rumen protected methionine and Lysine, so to improve the absorption of amino acids by breast cells, improve amino acid balance, improve milk production performance, and finally improve milk quality.
2) Relieve fatty liver and ketosis
In the perinatal period, the use of rumen protected choline chloride provides the body with the precursor material of VLDL, to promote the synthesis of VLDL, improve the transport capacity of triglycerides in liver, and finally relieve fatty liver and ketosis.
3) Provide high quality and efficient slow release nitrogen source
Slow-release Urea is prepared for adult ruminants by microencapsulation to control the slow release of the nitrogen source in the rumen, promote the nitrogen balance of the feed in the rumen, increase the utilization rate of the nitrogen source, save the protein raw material and reduce the feed cost.
4) Alleviate heat stress
Dietary management is critical in lowering down the negative impact of heat stress. High quality forage is digested faster and result in less heat being produced. Microbial protein makes a strong contribution to the lysine supply. When rumen microbial production is reduced during heat stress, feed ingredients high in rumen undegraded lysine or rumen protected Lysine are needed to replace. Nicotinic acid (rumen protected) is proved effective in help cooling down the body temperature.