"three methods" for fattening old and remnant cattle
The fattening of old and residual cattle is an effective measure to give full play to the production performance of cattle and improve the economic benefit. Before fattening, cattle were first dewormed and vaccinated, and then intensive fattening was adopted, that is, fattening was achieved in a short period of time (80,100 days).
(1) Rice water plus rice bran fattening 20 kg of rice bran per cow per day, adding 2 kg of rice bran and feeding the cattle after mixing. Other conventional feed allows the cattle to eat freely and gain about 1 kg per day.
(2) distiller's grains plus concentrate fattening each cow with 10 kg of distiller's grains per day, mixed with corn and other concentrate 1 kg to 1.5 kg, other conventional feed allows cattle to eat freely, and the daily gain is 1 kg to 1.2 kg.
(3) the daily gain of bean curd dregs and corn bran per cow is 1015kg and 1.52kg per day, adding proper amount of chopped dry and fresh grass and feeding the cattle together, the daily weight gain can reach more than 1kg.
In order to better improve the fattening effect of old and residual cattle, during the fattening period, farmers should ensure that fattening cattle have sufficient ruminating time, feed water and grass evenly, the fattening effect is the best in autumn, and the room temperature of the barn should be kept above 8 ℃ in winter.
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Remarkable achievements have been made in the research and development of fine varieties of Qingyuan red deer in Fushun, Liaoning Province.
Qingyuan red deer is a scientific and technological project jointly researched and developed by the Special products Research Institute of Chinese Academy of Agricultural Sciences and Fushun Academy of Agricultural Sciences. It was approved by the National Livestock and Poultry Variety Committee in December 2002 and approved as a new national livestock and poultry breed by the Ministry of Agriculture in February 2003. It won the first prize of scientific and technological progress in Fushun in 2003 and the second prize of scientific and technological progress in Liaoning Province in 2004. Fushun Agricultural Science Research Institute, as one of the main units to complete the scientific and technological achievements, after several years of unremitting efforts, built the Qingyuan red deer breeding base, with excellent pure breeding of Qingyuan red deer.
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Chronic respiratory disease in chicken
Ascites syndrome is a common non-communicable disease in broilers. It mainly occurs in 20 Mel 40-day-old fast large broilers, characterized by obvious stagnant water in the abdominal cavity, serious damage to the heart, lungs and liver, although the incidence is not high, but the mortality rate is close to 100%. The etiology of the disease has a variety of pathogenic factors, including not only the physiological and anatomical characteristics of broilers, but also environmental factors and pathogens of secondary infection after poisoning. Generally speaking, the factors that lead to hepatic portal vein circulation disturbance and right heart failure can lead to ascites.
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