Cattle feed urea to look at forage grass
Feed urea to cattle, urea can be digested by microorganisms in the rumen of cattle to synthesize bacterial protein, replacing part of protein feed, so urea is a high-quality protein supplement feed for cattle. However, urea is not a protein after all, and its utilization efficiency is affected by many conditions. Generally speaking, urea should be fed to cattle according to the situation of forage grass. Urea can be added in winter and spring when wheat straw, dry corn stalk and hay are the main coarse forage, and it is not suitable to feed in summer and autumn when green forage is the main forage.
The results showed that when the crude protein content in feed was below 11%, the urea utilization rate in rumen was about 70%, and the weight gain effect of cattle was obvious. When the crude protein content in the feed was more than 12%, urea could not increase the weight, but would affect the weight gain or make it lose weight obviously.
In summer and autumn, there are many kinds of wild vegetables, weeds and pastures. Cattle often take green feed as the main one, and green feed contains comprehensive nutrients, especially high crude protein content, generally 12%~ 20%. The digestion and utilization rate of crude protein is also very high, generally reaching more than 70%. At the same time, the quality of crude protein is excellent, and the essential amino acids are comprehensive and the nutritional value is high. Therefore, in feeding wild vegetables, weeds, grass and other green forage mainly when there is no need to feed urea to cattle.
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Processing technology of deer tail
Deer tail is composed of caudal vertebra, lumen, muscle fiber, adipose tissue, tail gland, connective tissue capsule and skin. Due to the different species of deer, its shape and size are also different. The red deer tail is thick, short and wide, and the tail tip is obtusely round, which is the best of the deer tail, while the sika deer tail is longer and tapered. The tail type of female deer is shorter and thicker, while that of male deer is longer. Deer tail has been used as a precious nourishing and strengthening agent in ancient China, and it is also a very delicious delicacy. According to traditional Chinese medicine, deer tail
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Diagnosis and treatment of pigeon disease
The purpose of pigeon disease diagnosis is to recognize the disease as soon as possible so as to take timely and effective prevention and treatment measures. Diagnosis is the forerunner of prevention and control work, only timely and correct diagnosis, prevention and treatment work can be targeted and achieve remarkable results. Otherwise, it will often act blindly, delay the opportunity and bring great economic losses to the pigeon industry. According to the occurrence and development of pigeon disease and the physiological characteristics of birds, the clinical diagnosis of pigeon disease includes three aspects: investigation of epidemic characteristics, observation of pigeon flock and individual symptoms and pathological anatomy. I. popular characteristics and individual
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