Phosphate is a component of bones and teeth. Pure phosphate deficiency can also cause rickets and osteomalacia. phosphate has a wide range of effects on the body: first, the constituents of phosphate esters, which are involved in maintaining the structure and function of cell membranes; second, the components of adenosine phosphate, which participate in the body's energy metabolism; Protein synthesis and poultry reproduction all play important roles. Fourth, phosphate forms phosphate buffer pairs in body fluids to regulate the acid-base balance of body fluids.
This article contains the following:
1.What is phosphate
Feed phosphate is the main inorganic feed additive, and the production capacity of feed phosphate in the world has exceeded 10 million tons. In foreign countries, especially developed countries, the production of feed phosphate has become large and centralized. There are more than 20 varieties, including calcium, sodium, ammonium, potassium, magnesium and phosphoric acid. Among them, calcium salt is the most widely used. The calcium salt is mainly calcium hydrogen phosphate (dicalcium phosphate). .
2.Hidden dangers in lack phosphate
When the amount of available phosphate in the poultry's corpus is insufficient, for example, the diet is mainly grain, and no bone meal, fish meal and other feeds are added or insufficient, it is easy to cause phosphate deficiency. In addition, the improper ratio of calcium to phosphate in the feed, and insufficient vitamin D content in the feed will affect the absorption and utilization of phosphate, and cause phosphate deficiency.Phosphate deficiency in poultry is similar to calcium deficiency, with symptoms such as rickets or osteomalacia.
3.Dangers in lack of phosphate for chicken
Phosphate is the second most important mineral element in chickens. Phosphate is also the main raw material for chicken bones. About 80% of the total phosphate in the chicken body is present in the bone. Other phosphate is contained in soft tissues. It is a component that constitutes a buffer system for certain substances in soft tissues and body fluids, and produces metabolism in the body. Important role. Therefore, chicken feed must contain a certain amount of phosphate. Phosphate deficiency or phosphate that is too low relative to calcium levels usually reduces feed conversion, significantly reduces appetite or rejects food, and slows down weight gain; aphanophagia during severe phosphate deficiency can cause tibia dysplasia or phosphate deficiency in growing chickens (Symptoms are similar to those of calcium deficiency.)
Severe phosphate deficiency or poor availability of phosphate in the feed will quickly lead to loss of appetite, weakness, and death within 10 to 12 days. Laying hens will exhibit reduced egg production, reduced egg weight, reduced hatchability, and reduced bone loss. Loose. Feeds must contain sufficient amounts of phosphate before the start of production. Reducing available phosphate can increase kidney damage caused by excessive calcium. Among the feed ingredients commonly used in chickens, cereal seeds, cake meal, wheat bran, and rice bran are high in phosphate, but the phosphate in these feeds is mainly in the form of phytic acid phosphate, and poultry have poor utilization of this form of phosphate.
Therefore, a certain amount of inorganic phosphate must be supplied in chicken feed. Poultry phosphate requirements or supplies can be expressed as total and available phosphate. Total phosphate includes all phosphate and inorganic phosphate in plant-based feeds (animal feed and phosphate in mineral feeds), and available phosphate consists of non-phytate and inorganic phosphate in plant-based feeds; Reasonably meet the chicken's phosphate needs.
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