Table 4.
Thin | Fat | P* | |||||||
---|---|---|---|---|---|---|---|---|---|
Treatment | 1·8 kg | 2·5 kg | 3·5 kg | 1·8 kg | 2·5 kg | 3·5 kg | sem | Body condition | Feed level |
n | 21 | 23 | 24 | 23 | 25 | 24 | |||
Cortisol (nmol/l) | 9·27 | 7·03 | 5·79 | 7·78 | 6·44 | 4·21 | 0·912 | 0·081 | 0·001 |
n | 6 | 9 | 6 | 8 | 10 | 8 | |||
Colostrum composition day 0 | |||||||||
IgG (mg/ml) | 149·3 | 99·5 | 83·3 | 128·7 | 123·5 | 156·3 | 27·98 | 0·218 | 0·527 |
n | 9 | 14 | 14 | 12 | 15 | 13 | |||
Milk composition day 21 | |||||||||
Protein (%) | 5·6 | 5·8 | 5·6 | 6·0 | 5·6 | 6·1 | 0·13 | 0·475 | 0·881 |
Fat (%) | 7·5 | 6·1 | 5·8 | 7·7 | 8·1 | 9·1 | 0·31 | 0·003 | 0·760 |
Lactose (%) | 6·1 | 5·9 | 6·1 | 6·0 | 6·0 | 5·7 | 0·07 | 0·487 | 0·613 |
* There was no significant body condition × feed level interaction for cortisol, colostrum or milk composition.