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논문 기본 정보

자료유형
학술대회자료
저자정보
De la roza, Begona (Animal Production Department. Servicio Regional de Investigacion y Desarrollo Agroalimentario [SERIDA]) Martinez, Adela (Animal Production Department. Servicio Regional de Investigacion y Desarrollo Agroalimentario [SERIDA]) Modrono, Sagrario (Animal Production Department. Servicio Regional de Investigacion y Desarrollo Agroalimentario [SERIDA]) Argamenteria, Alejandro (Animal Production Department. Servicio Regional de Investigacion y Desarrollo Agroalimentario [SERIDA])
저널정보
한국근적외분광분석학회 한국근적외분광분석학회 학술발표회 한국근적외분광분석학회 2001년도 NIR-2001
발행연도
2001.1
수록면
1,629 - 1,629 (1page)

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초록· 키워드

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The knowledge of the nutrition in animal production is difficult to assess due of difficulty to determine the amount and quality of feeds intake, mainly if forages are the most important compound in the diet. It must be able to know responses to the metabolic process in lactating dairy cows earring out feeds evaluation trials. These metabolism studies with cows, requires measurements of: I) The amount of all feeds consumed. II) Excretion of faeces. III) Excretion of urine. Taking as a basis these trials, forage and total intake, dietary digestibility and balances of nitrogen and energy can be calculated. However, these feeds evaluation experiments with animals are very time consuming and expensives. The faeces excreted by animals containt undigested residues of the diet consumed. For this reason, their analysis can be an successful tool to determine the amount and quality of feed intake and other important biological parameters. The aim of this work was to know if faeces analysis by NIR could be used to determine with enough accuracy some attributes of different lactating dairy cows diets, using a global equation, developed on an heterogeneus population. For this purpose a total of 79 faecal samples from eight grass, three grass silages and two maize silages metabolic trials, on six cows each one, were used to constitute the initial population. The calibration equations were developed to predict forage and total intake, organic matter digestibility, digestibility coefficient of crude energy and digestibility energy. The combination of several trials with different diets and animal conditions gave promising results.

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