Effects of feeding dairy cows total mixed rations with high dry matter content on dry matter intake and lactation performance during the hot season
2002
"Yokoyama, M. (Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)) | Kamori, T. | Isozaki, Y. | Kakihara, T. | Harada, M. | Koga, Y. "
"Effects of Feeding Dairy Cows Total Mixed Rations with High Dry Matter Content on Dry Matter Intake and Lactation Performance During the Hot Season. Yokoyama Manabu, Tugumitsu Kamori, Takahiko Kakihara, Yoshihiro Isozaki, Minako Harada and Yasuhiro Koga (Fukuoka Aerie. Res. Cent, Chikushino, Fukuoka 818-8549, Japan) Bull. Fukuoka Agric. Res. Cent. 21:45-48 (2002). In order to prevent dairy cows from a decrease in Lactation Performance during the hot season, we investigated the effects of feeding dairy cows TotaI Mixed Rations (TMR) with high dry matter (DM) content . The cows were fed with three experimental diets: TMR with 60 % dry matter content. TMR with 60__dry matter content and the addition of ammonia tetra-formate, and TMR with 80__dry matter content. TMR with 80__DM content and TMR with ATF generated no heat during 16 hours after mixing; however, TMR with 60__DM generated heat 4 to 5 hours after mixing. TMR with 80__DM content and TMR with ATF did not cause concentrated intake behavior after being fed in the evening. There was no difference between TMR with 60__DM content and TMR with ATF in dry matter intake (DMI) and lactation performance. TMR with 80__DM content increased the percentage of milk fat and total milk solid content. From these results, it is determined that feeding TMR with 80__DM content restrains heat generation after mixing and increases the percentage of milk fat and total milk solid content."
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