B vitamin deficiency is easy to cause avian diseases

Vitamin B family includes vitamin B1, vitamin B2, vitamin B3 (nicotinic acid), vitamin B5 (pantothenic acid), vitamin B6, vitamin B11, (folic acid), vitamin B12 (glutamate), vitamin H (biotin) and choline More than 10 kinds of water-soluble vitamins have different structure compounds, participate in animal metabolism as a coenzyme of enzymes, synergistically, regulate metabolism, maintain skin and muscle health, enhance immune system and nervous system function, promote cell growth and division . In the absence of a certain type, it may cause a certain disorder, which is often a syndrome. Vitamin B family has a wide range of sources. Except for the lack of niacin in corn, it is not lacking in general feed, but it is often devoid of oxidative damage.

1 cause

Mainly have long-term feeding of vitamin B-deficient feed and food; hinder its absorption or destruction of vitamin B family synthesis; animals develop too fast, consume vitamin B family increased, the need for increased to a relative lack.

2 clinical features

Common symptoms of B-deficiency are digestive dysfunction, weight loss, hairlessness, lack of hair, hair loss, dermatitis, broken feet, neurological symptoms, and motor dysfunction. The laying rate of laying hens is reduced, and chicks and broilers are growing slowly.

2.1 Vitamin B1 deficiency

Adult chickens were fed a diet deficient in vitamin B1, which occurred more than 3 weeks after the onset of multiple neuritis, mainly showing progressive muscle paralysis. It begins to occur in the toe flexor, which in turn spreads to the legs, wings, and neck extensors so that the legs cannot stand. Mandatory paralysis occurs in the later stages of the disease, usually after 1-2 weeks of failure. Chicks often develop within 2 weeks of vitamin B1 deficiency, and also have multiple neuropathic symptoms, and the onset is sudden. The legs of the sick chicken are curled under the abdomen, and the body is pressed against the legs. Because the muscles in front of the neck are paralyzed, the head and neck are reclined and the so-called "gaze star posture" is also called "galactic star disease". Finally, the ground temperature can be reduced to below 36oC.

2.2 Vitamin B2 deficiency

It shows slow growth, weakness, weight loss, but good appetite. Diarrhea occurs between 1-2 weeks and cannot walk. The characteristic symptom of the diseased chick is that the toe claw curls inward, also known as "toe paw distorted." When forced to drive, the ankle joint crawls on the ground, the wings expand to maintain the balance of the body, the muscles of the legs shrink and relax, and the skin is dry and rough. In severely deficient chicks, the sciatic and brachial nerves show significant swelling and weakness. The egg production is reduced, the protein is thin, and the hatching rate is low.

2.3 vitamin B6 deficiency

In the absence of loss of appetite, slow growth, dermatitis, anemia, convulsions, trembling, involuntary movement, collapsed back of the sick bird, lumbosacral. The laying rate and hatching rate of laying hens decreased, and the development of feathers was blocked, sputum, and limp.

2.4 Choline deficiency

In the absence of development, the joints are swollen, the flexion is incomplete, the bones are short and thick, and the ataxia is at a loss. indigestion.

3 prevention principles

Pay attention to the full price of the diet, and supply the B vitamin-rich feed, which can supplement the multivitamin B additive.