Effect of feeding diets containing full-fat rapeseed and rapeseed cake on the nutrient digestibility in growing pigs
2001
Leming, R. | Lember, A. (Estonian Agricultural Univ., Tartu (Estonia))
An experiment was carried out to evaluate the effect of double low full-fat rapeseed and rapeseed cake on the digestibility of different nutrients in growing pigs. Four Estonian Landrace pigs were fed barley-based diets containing 10 per cent of ground full-fat rapeseed meal and 10 per cent or 20 per cent of rapeseed cake. Chromium oxide was used as an inert marker. The pigs were fed twice a day according to a 4x4 Latin-square design. Water was provided ad libitum. The initial live weight of the animals was 41 kg and the final weight was 69 kg. Inclusion of 10 per cent full-fat rapeseed or 10 per cent rapeseed press cake in the diet had no adverse effect on the digestibility of most nutrients. Inclusion of 20 per cent rapeseed cake in the diet increase the apparent digestibility of crude protein and crude fat, but decreased the digestibility of nitron-free extracts. In the present study faecal samples were collected three times a day- at 8.00...10.00, 10.00...12.00 and 12.00...14.00. The content of chromium oxide in the faeces was 2,4 per cent, 2,6 per cent and 2,7 per cent in dry matter. Therefore, it should be necessary to collect faecal samples not only each day of collecting period, but also at different times within one collecting day
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