Feed Characteristics and Utilization of Corn Whole Crop Pellet for Lactating Dairy Cows

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  • Ieki Hajime
    Ehime Prefecture Livestock Research Center:(Present office)Ehime Prefecture Government Livestock Management Division
  • Koike Masamitsu
    Ehime Prefecture Livestock Research Center
  • Takahashi Toshimasa
    Ehime Prefecture Livestock Research Center:(Present office)Ehime Prefecture Toyo Livestock Hygiene Service Center

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  • ペレット加工したトウモロコシホールクロップの飼料特性と泌乳牛における利用性
  • ペレット カコウ シタ トウモロコシホールクロップ ノ シリョウ トクセイ ト ヒニュウギュウ ニ オケル リヨウセイ

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Abstract

The objective of this study was to evaluate the utility of corn whole crop pellet (CWCP) as a feed for cows. To compare the digestibility and nutritive value of CWCP with those of corn silage (CS), we fed two experimental diets consisting of 35% CWCP or CS and 65% alfalfa hay cube (AC) as basal diet on a dry matter (DM) basis to three goats. The digestibility of nutrients compositions except for crude protein in CWCP was higher (P\<0.05) than that in CS. The amount of estimated total digestible nutrients in CWCP was 78.4% on a DM basis. In feeding trial using four lactating dairy cows, no significant difference was observed in digestibility, except for ether extract, nitrogen balance and milk production between the diets containing 15% CWCP or beet pulp and part of barley on a DM basis. These results indicate that the nutritive value of whole crop corn is improved by processing to pellets, and thus CWCP can replace part of concentrate feed as 15% of the diets of lactating dairy cows.

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