Study on adaptability of marine duck named 15-Dai Xuyen with drinking water having different salinity levels in Tan Phu Dong district, Tien Giang province

Abstract

A study was carried out to evaluate the adaptability of marine duck named 15-Dai Xuyen with drinking water having different salinity levels (treatment I: 6-11‰, II: 12-17‰, III: 18-23‰ and IV: 24 -29‰) during 4-10 weeks old, which were raised at Tan Phu Dong district, Tien Giang province, from July to September, 2018 (120 ducks per treatment). The survival rate of duck
was 100% in treatment I and II (drinking water with salinity level less than 18‰), the weight of marine ducks reduced gradually from the treatment I to treatment IV, the higher salinity level in drinking water, the more development of duck salt gland, the duck salt gland weight at 70 days old in the treatment IV was heavier than that of 3 other treatments. There was the changes of some biochemical and physiological parameters in the ducks when drinking water with different salinity levels, meat quality of ducks at 70 days old were reduced gradually by the increasing of salinity level in drinking water