What trace elements are needed for chickens
The trace elements needed by chickens are manganese, iron, copper, zinc, iodine, magnesium, sulfur, selenium and so on. Although the amount of these elements is very small, they play a very important role in the growth and development, reproduction, nutrition and metabolism of chickens as well as the quantity of products. Some elements require very little and are easy to be poisoned in excess. They must be given accurately and stirred evenly.
Manganese: the main role of manganese is related to phosphorus and calcium metabolism, growth and development, egg growth, embryonic development, reproduction and health. Lack of manganese in diet, chicken bone dysplasia, flexor tendon disease, movement disorder, growth obstruction, weight loss; adult chicken weight loss, eggshell thinning, hatching rate decreased and so on. Therefore, manganese is one of the indispensable trace elements in chicken nutrition. When matching diets, we should consider supplying appropriate amounts of manganese.
Zinc: zinc is one of the elements needed for the growth and development of chickens. In the case of zinc deficiency, the chicks showed loss of appetite, growth retardation, poor feather growth, weak legs, difficulty in walking, enlarged joints, late sexual maturity of laying hens, thin eggshells and even soft-shell eggs. There are many stillbirths, the body and limbs of the embryo are deformed, and it is difficult to break the shell. The newborn chicks are weak and difficult to stand, and most of them die within a few days.
Iodine: iodine is necessary for the thyroid gland to form thyroxine. Thyroxine is a kind of iodine-containing amino acid, which can regulate metabolic function and systemic oxidation process. Dietary iodine deficiency is easy to cause iodine deficiency in chickens, mainly manifested as thyroid swelling, several times larger than the normal thyroid, decreased metabolic function, hindered growth and development, somnolence, loss of fecundity, and severe cases will die. Selenium: both selenium and vitamin E have antioxidant effects. In the case of selenium deficiency, chickens will have white myopathy, exudative diathesis, pancreatic degeneration, slow growth and so on.
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Sudden bovine death syndrome
Sudden bovine death syndrome is a new disease that occurs all over our country in recent years, which has attracted much attention. Its characteristic is the disease is lazy, the symptom is not obvious, the death is quick, often does not have time to treat namely dies. It does great harm to the cattle industry. (1) the etiology of the disease; in recent years, there have been many reports and different opinions, but there is no final conclusion, which can be summarized as follows: 1. Cattle mistakenly ate forage or feed stained with fluoroacetamide masonry. 2. Cattle infected with type A Weishi seedlings cause the disease, or this bacteria and Baqing clubbing
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To raise pigs well, we should pay attention to reasonable drinking water for pigs.
Water is an important substance in the life activities of all animals. Pigs are no exception. All life and physiological activities in pigs, such as digestion and absorption of nutrients, excretion of waste, blood circulation, respiration and body temperature regulation, are inseparable from water. Once the pig is short of water, its life and physiological activities will be affected, resulting in poor digestion and absorption of pig feed, thickening of blood concentration, increase of body temperature and so on, resulting in lower feed reward, higher feeding cost and lower breeding benefit. At the same time, it will also hinder the growth and development of pigs and cause a variety of diseases. I. Pig drinking water
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