110 (30’)

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111 (30’)

β-Carotene in Dairy Cattle: Endocrinological and Metabolic Aspects Related to Fertility in the Peripartual Period K. Kida Japan

112 (30’)

β-Carotene Defciency in Dairy Cattle: Reasons and Prevention W. Schliffka Germany

113	Factors Related to the Reproductive Performance of Dairy Herds in Chile L. Poo Chile

114	Factors Responsible for Increased Calving Intervals in Cross-bred Cows in India A. Nanda, J. Singh India