Effect of dietary crude protein and energy content on nitrogen utilisation, water intake and urinary output in growing pigs
| Autor: | J. VALAJA, H. SILJANDER-RASI |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Agricultural and Food Science, Vol 7, Iss 3 (2008) |
| Druh dokumentu: | article |
| ISSN: | 1459-6067 1795-1895 |
| Popis: | A digestibility and balance trial was carried out with four intact castrated male pigs (live weight 33-82 kg) to study the effects of dietary crude protein and energy content on nutrient digestibility, nitrogen metabolism, water intake and urinary output. In a 4 ´ 4 Latin square design, four barley-oats-soya bean meal based diets were arranged 2 ´ 2 factorially. The corresponding factors were dietary crude protein (CP) content: high (180 g/kg CP) or low protein diet (140 g/kg CP) supplemented with free lysine, methionine and threonineLowering dietary CP content (mean values of 189 to 152 g/kg dry matter, respectively) by supplementation of free amino acids decreased urinary nitrogen (N) excretion by 6.9 g/day (32%) (P |
| Databáze: | Directory of Open Access Journals |
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