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Tottori University (2018)

Utilizationof alfalfa hay diets by confined Simmental crossbred calf

Kobayashi, Nobuyuki

Titre : Utilizationof alfalfa hay diets by confined Simmental crossbred calf

Auteur : Kobayashi, Nobuyuki

Université de soutenance : Tottori University

Grade : Doctoral Thesis 2018

Sommaire partiel
In China, beef consumption is rapidly increasing because of the population increase and shifting dietary preferences associated with economic growth. Effective foraging systems are required to handle the concurrent increase in feed requirements for cattle. In Gansu Province, which is a major beef cattle production area in China, a strategy of raising beef cattle in pens or feedlots to prevent the desertification of natural pastures has been . Alfalfa, a forage species that is commonly cultivated in the Province, appears to have considerable value as a source of nutrition for beef cattle because of its tolerance to drought and its high protein concentration. However, small-scale farmers in the Province use corn stover as the basal diet along with ample provision of commercial concentrate. This study was aimed at proposing measures for improved feeding regimens of beef cattle through the substitution of alfalfa hay (AH) for concentrate feed. Feeding trials were conducted in the Province to develop appropriate substitution levels of alfalfa for concentrate according to the energy and nitrogen utilization status of beef cattle. Additionally, respiration trials for estimating energy used for basic metabolism were conducted.

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Page publiée le 26 avril 2020