A method to determine the energy and protein requirements of growing Tibetan white cashmere goats

Abstract

The invention provides a method for determining the determining the requirement amount of energy and protein of a Tibetan white cashmere goat in a growing period. The method is characterized in that a3-month-old Tibetan cashmere goat is selected as a test object, a feed sample, a fecal sample and a urine sample are collected and treated, growing performance measurement is carried out, nutritionalingredients of the feed sample, fecal sample and urine sample are analyzed, related indexes of nitrogen metabolism and energy metabolism are calculated, and the effects of different energy protein levels on the production performance of the Tibetan white cashmere goat in the growing period, the effects of the different energy protein levels on the nitrogen metabolism of the Tibetan white cashmeregoat in the growing period, the effects of the different energy protein levels on the energy digestion and metabolism of the Tibetan white cashmere goat in the growing period, and the effects of thedifferent energy protein levels on the energy and protein intake of the Tibetan white cashmere goat in the growing period are statistically analyzed.

Description

technical field [0001] The invention relates to the technical field of animal husbandry, in particular to a method for determining the energy and protein requirements of growing Tibetan cashmere goats. Background technique [0002] Tibetan white cashmere goat is an excellent breed that combines cashmere, wool, skin, meat and milk. It is mainly distributed in Ritu and Nyima counties in Northwest Tibet. Under the special and harsh ecological environment and extensive breeding management on the plateau Multiply, formed after long-term natural selection and artificial selection. For a long time, Tibetan white cashmere goats have been mainly grazing. However, due to the serious degradation and desertification of the grassland, the livestock carrying capacity of the grassland has decreased year by year. The reproduction, growth and production performance of Tibetan white cashmere goats make it impossible to fully reflect the excellent traits, and also seriously affect the economi...

AI Technical Summary

Problems solved by technology

For a long time, Tibetan white cashmere goats have been mainly grazing. However, due to the serious degradation and desertification of the grassland, the livestock carrying capacity of the grassland has decreased year by year. The reproduction, growth and production performance of Tibetan white cashmere goats make its excellent traits not fully reflected, and it also seriously affects the economic income of herdsmen

At present, in the main producing areas of white cashmere goats in Tibet, herdsmen have begun to artificially plant grass and house-feed breeding or short-term fattening by house-feeding, which has played a good role in promoting the restoration of grassland ecological vegetation. However, due to the lack of feeding standards for different growth stages of cashmere goats Or nutrient requirements and reasonable formula, resulting in low feed conversion rate, increased feeding costs, and aggravated environmental pollution

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