ONTOGENY OF THE DIGESTIVE SYSTEM OF ATLANTIC SALMON (Salmo salar L.) AND EFFECTS OF A PLANT PROTEIN DIET INTRODUCED FROM FIRST FEEDING

摘要

Optimal nutrition during early life stages is a bottleneck in the industrial production of many aquatic species. Rearing Atlantic salmon, however, has not been as difficult since salmon alevins are well developed at hatch and thrive on pelleted dietsfrom first feeding. Consequently, little research has been conducted on the functional development of the digestive apparatus in salmon. A morphological description of the general development of Atlantic salmon from fertilization until complete yolk sacabsorption has been published (Gorodilov 1996), but only limited information on the ontogeny of the gastrointestinal (GI) tract is available.