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Opinion on the efficiency of livestock and poultry feed


Computing (1) the amount of feed consumption and ratio of livestock products, said: that is the standard animal feed and feed per kg equivalent amount of the production of livestock or livestock unit quantity,[link widoczny dla zalogowanych], the formula is: the amount of animal products / standard equivalent of material consumption or feed and the amount of livestock units / standard material consumption or feed equivalent. (2) per kg of animal or per animal production unit of the consumption of nutrients, the main nutrients such as energy (DE, ME,[link widoczny dla zalogowanych], NE), protein (CP, DCP) amino acids. V. Summary 1, simply use the existing should be improved and perfected. 2, in the calculation of feed efficiency, feed consumption should be the standard of their feed consumption, feed in the standard calibration, the author puts forward some principles and methods, pending further study, accurate determination of the blue, Jiang material consumption and nutrition value of livestock and poultry should be used Otherwise, use the 3, many kinds of livestock and poultry products, suggesting use of weight gain, milk yield, egg production, livestock, flat rejection for meat animals, respectively, 38 ANIMAL SCIENCE AND VETERINARY poultry, dairy farming, egg birds, labor (hair, skin ) metrics with livestock livestock products,[link widoczny dla zalogowanych], livestock and poultry for use either in accordance with the provisions of the text translated into the total amount of the main livestock or livestock products or livestock units per gram unit of energy consumed by livestock, protein, amino acids, and thus correct evaluation of livestock The level of production. 6 with the tuck, dance a / 6, faint,, tuck dance of the scale of the development of grassland in Western Jilin Province supporting technology for a three-Lan Tong (Institute of Animal Husbandry Baicheng area of Jilin Province 137000) To promote the healthy development of leather industry, we need on the grass production and use on the emergence of many new problems to be studied and resolved in a timely manner. This development and utilization of grassland resources in the western region of the problem on a more superficial views. 1, for technical support in view of the rational assembly of livestock production is still the reality of the vast natural grassland used for grazing perennial shortage of the traditional feeding forage mainly in the hay season. Therefore, solving the shortage of grass hay in winter and spring the focus but reserve problems. Development and construction of the grassland is a productive, strong regional work. Necessarily involves multi-disciplinary multi-disciplinary, multi-disciplinary factors by the constraints. Also, because different areas such as soil type and weather conditions vary, so both sets of field experience can not copy the photos, they can not rely on a certain kind of individual technologies. Must be fully adapted to local conditions to take appropriate technical measures to Taiwan in order to play the overall economy. Experience has proved that And all three can not be separated, can be neglected. Here we combine the and artificial grass. But will focus on the artificial grass. The reason is that the latter requires the technical, improvement is difficult. Second, synchronized with the grass-building,[link widoczny dla zalogowanych], grassland management and forage grass with three technical system construction technology system in accordance with 1.1 in different degraded vegetation (severe, moderate, mild) and soil moisture status, specifically into artificial grassland, semi- artificial turf and natural grass leisure three series, respectively, to take appropriate technical measures to 1.1.1 can use artificial turf series of severe degradation of the natural pasture grass with artificial sheep. The establishment of pasture in the arid grassland, in order to further improve its productivity, we must seek to enhance soil fertility. Given the scarcity and high price of fertilizer,[link widoczny dla zalogowanych], manure in crop production is still in short supply on the actual situation. Look through the application of these two types of fertilizer to improve soil fertility obviously the grass is very realistic so we adopted a Select the adaptability, yield high, a large sweet clover as a fertilizer mixed material. Second, in the sweet clover mixed grassland old flowering period Fangfeng honey; seeds mature hand harvesting seeds. Received good economic and ecological benefits. If a small four-year period, the sheep meadow hay unicast average annual production of 2615.2 kg per hectare, mixed grassland to 2789.2 kg. Were 6.1 times more than grass before and 6.6-fold increase; unicast net profit per hectare of grassland 1071.60 yuan. The mixed grassland up to 1557. O0 million (including honey, royal jelly 69 yuan, 320 yuan grass seed operation Osmanthus fragrans, L. chinensis 1168 yuan). At the same time, soil organic Ga, total N, respectively, compared sheep and grass 8.3,3.3 unicast and l5.7. In addition, we also carried out on the artificial turf of spin with
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