Vitamin pp deficiency in chickens
Similar symptoms: dermatitis. (similar to colibacillosis (skin type), staphylococcosis, fowlpox (skin disease), Marek's disease (skin disease), vitamin H deficiency, pantothenic acid deficiency, zinc deficiency)
Differential symptoms: skin scaly dermatitis of both legs, black tongue disease and inflammation of oral cavity and esophagus.
Treatment: nicotinic acid 30~40mg was added to every kilogram of feed for 5 days for 7 days. If joint enlargement occurs, it is difficult to treat and should be eliminated.
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Dual-purpose Duck breed-Sichuan Ma Duck
The main results are as follows: (1) the producing area and distribution are small dual-purpose varieties. The central producing areas are located in Mianyang, Wenjiang, Leshan, Yibin, Neijiang, Dachuan and other areas in Sichuan Province, and are widely distributed in rice field producing areas in Sichuan Province. Sichuan sesame duck is precocious and has strong grazing ability. it is the main breed of meat ducks in Sichuan province. (2) the appearance features, the physique is small, the physique is solid and compact, the feathers are tight, and the neck is long and the head shows. Beak orange yellow, beak beans are mostly black, chest developed, prominent. Shins, webbed orange-red. The feather color of the female duck is more miscellaneous, and most of them are hemp brown. Ma-brown female duck
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Effect of low fiber diet on sows
The low content of crude fiber in diet can also cause a series of problems in pregnant and lactating sows. If it is easy to cause constipation in sows, the reason may be that feed stays in the digestive tract for too long, absorbs too much water, and dry feces cause constipation; in addition, digestive tract problems such as gastric ulcers in sows in factory farming may also be related to dietary cellulose content. If the sows in the early stage of pregnancy are fed a low-fiber diet, it is difficult to feel full due to the limitation of feed intake, which will lead to problems such as loop jumping.
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