[Effect of two rearing conditions on growth and body composition in carp (Cyprinus carpio L) (author's transl)]. / Influence de deux modes d'élevage sur la croissance et la composition corporelle de la carpe commune (Cyprinus carpio L)

A comparative study was made of the growth and of the influence of seasonal changes on nitrogen and carbohydrate metabolism of carp kept in batches in natural ponds. 10 Growth is active only in natural ponds. In batches where only industrial dried foods are used, no growth can be measured. 20 Activity of ribonucleic and protein metabolism is correlated with seasonal variations of water temperature in both conditions.