Sununary: Four Jersey cows wcre used in a 4x4 Latin-square designed tria1. The
cxperimental feeding periods were five weeks in length. During the fifth week of each period
feed, faces, milk and rumen flııid samples were collected for analysis.
Good quality alfalfa hay was used as sole source of roughage. Hayand 5 % urea
containing concentrate mixtures were fed in the proportions of 60:40, 50:50; and 40:60.
The ratio of hay to concentrate without urea was 50:50. Rations were gi"en three times
a day in equal amounts. The quantity of feed fed and refused was recorded daily, and
about 200 g of hayand concentrate mixture samples were collected at each feeding during
the comparison periods. The faces sampk-s were taken from the rectum twice a day at the
same period. The cows were milked at 5 A. M. and 5 P. M. and production was recorded.
Milk samples of 50 ml were Collected each day of the comparison periods
Birincil Dil | Türkçe |
---|---|
Konular | Veteriner Cerrahi |
Bölüm | Araştırma Makalesi |
Yazarlar | |
Yayımlanma Tarihi | 1 Ocak 1972 |
Yayımlandığı Sayı | Yıl 1972Cilt: 19 Sayı: 03 |