Prediction of Dry Matter Intake of Lactating Cows in Summer

Prediction of Dry Matter Intake of Lactating Cows in Summer

Results of 134 feeding trials by lactating cows under high temperature conditions (more than 20°C of minimum temperature) were used to predict dry matter intake (DMI) in summer. The equation obtained was as follows: DMI= 0.0128BW+0.343FCM+0.083R/C-0.372CP+0.229 TAVE+0.088 HAVE-7.00 R2=0.683 RSD=1.56...

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Veröffentlicht in:Nihon Chikusan Gakkaiho 1997/02/25, Vol.68(2), pp.189-191
Hauptverfasser: TERADA, Fuminori, SHIOYA, Shigeru, SHIRAISHI, Kyouji, TAMAKI, Masanobu
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Cows
Dry matter intake
Heat stress
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container_issue 2
container_start_page 189
container_title Nihon Chikusan Gakkaiho
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creator TERADA, Fuminori
SHIOYA, Shigeru
SHIRAISHI, Kyouji
TAMAKI, Masanobu
description Results of 134 feeding trials by lactating cows under high temperature conditions (more than 20°C of minimum temperature) were used to predict dry matter intake (DMI) in summer. The equation obtained was as follows: DMI= 0.0128BW+0.343FCM+0.083R/C-0.372CP+0.229 TAVE+0.088 HAVE-7.00 R2=0.683 RSD=1.56 (BW: body weight, kg, FCM: fat corrected milk yield, kg, R/C: roughage ratio, %, CP: crude protein, %DM, TAVE: average temperature, °C, HAVE: average relative humidity, %). This equation was suggested that DMI in summer was controlled by heat production described by BW, FCM, R/C and CP, and environments which affected heat losses.
doi_str_mv 10.2508/chikusan.68.189
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subjects Cows
Dry matter intake
Heat stress
title Prediction of Dry Matter Intake of Lactating Cows in Summer
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