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Livestock food intake estimating method

A technology for feed intake and livestock, applied in animal husbandry and other directions, can solve the problems of cumbersome operation and unstable release of cottonseed, and achieve the effect of wide application prospect, easy acquisition and wide planting.

Active Publication Date: 2015-07-22
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome a series of shortcomings such as the release instability caused by feeding indicator capsules or feeding beeswax-marked cottonseed in the prior art, which is cumbersome and has measurement errors, and to provide a method for accurately estimating livestock harvesting. Appetite method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: the preparation of alfalfa pellet

[0030] Collect fresh whole alfalfa, dry until the water content is 8-10%, grind into powder with a particle size of 1-3mm, and use a granulator to make granules.

Embodiment 2

[0031] Example 2: Estimation of livestock feed intake

[0032] Livestock were Inner Mongolian lambs aged 6-8 months; the average weight of the herd was 30 kg.

[0033] The livestock grazing area is the pastoral area A of Leymus chinensis grassland in Inner Mongolia. In this area, the pastures that livestock can feed on are Leymus chinensis and Alkali grass, and the distribution of each grass species is even.

[0034] The alfalfa granules prepared in Example 1 are used as supplementary feed, and the daily feed intake of livestock is estimated according to the following steps:

[0035](1) Get alfalfa granules, collect the forage grass seeds that livestock feed on from the grassland, and dry the alfalfa granules and each forage grass seed to a moisture content of less than 5%; adopt gas chromatography to detect endogenous indicators in the dried alfalfa The type concentration in the particles and each forage grass species, the test results are shown in Table 1 and Table 2 (OM r...

Embodiment 3

[0061] Example 3: Estimation of livestock feed intake

[0062] Compared with Embodiment 1, this embodiment only has the following differences:

[0063] The livestock grazing area is the pastoral area B of Leymus chinensis grassland in Inner Mongolia; in this area, the pastures that livestock can feed on are Leymus chinensis, Alkaligrass and reed, and the grass species are evenly distributed;

[0064] In step (1), the type concentration of endogenous indicator in alfalfa granule and each forage grass kind is as shown in table 4 and table 5;

[0065] Table 4: Saturated Alkanes Indicator Concentrations

[0066]

[0067] Table 5: Long-chain Alcohol Indicator Concentrations

[0068]

[0069] In step (3), the actual daily feeding amount (dry weight, water content less than 5%) of each control domestic animal is 307g of Leymus chinensis, 163g of Alkaline grass, and 95g of reed;

[0070] In step (5), the average recovery rate of each endogenous indicator is shown in Table 6; ...

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Abstract

The invention relates to a livestock food intake estimating method. According to the method, within a feeding period of 4-7 days, alfalfa particles are used as supplementary feeding agents, saturate alkane and long-chain alcohol are used as endogeny indication agents, and the endogeny indication agent method is adopted for estimating food intake of grazed livestock. Alfalfa as a natural supplementary feeding agent is planted widely in China and obtained easily, and only needs to be manufactured into the alfalfa particles so as to be stored for a long term, the alfalfa is rare in the grassland, the process of feeding the alfalfa has little interference to the grazed livestock, and the situation that as the alfalfa is eaten, deviation of an estimation result is caused is avoided. The livestock food intake estimating method with the alfalfa as the supplementary feeding agent is easy to operate and high in accuracy and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of herbaceous science, in particular to a method for estimating the feed intake of livestock by using alfalfa granules as supplementary feed. Background technique [0002] Leymus chinensis is mainly distributed in the east of the Eurasian steppe, and in my country, it is mainly in the east of the Songnen Plain and the Inner Mongolia Plateau. Because of its high palatability, Leymus chinensis is an ideal grass species for grazing and forage utilization, and Leymus chinensis has relatively loose requirements for growth conditions, which makes Leymus chinensis grassland one of the most suitable grassland types for the development of animal husbandry in northern my country. Grazing livestock showed certain selectivity in their forage intake in natural grassland, especially when the composition of grassland vegetation was relatively rich and available forage was sufficient, the selective grazing performance of livestock on...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 张英俊陈文青罗海玲郭艳萍
Owner CHINA AGRI UNIV
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