Apparent protein digestibility of some feed ingredients in marine fish and penaeus shrimp
2004
Juadee Pongmaneerata(Department of Fisheries, Bangkok (Thailand)) | Petchaya Chainark(Department of Fisheries, Bangkok (Thailand). Phangnga Coastal Fisheries Research and Development Center) | Tawee Chindamaikul(Department of Fisheries, Bangkok (Thailand). Kung Krabaen Bay Royal Development Study Center)
Protein digestibility of seven feed ingredients including fish meal, defatted soybean meal, wheat gluten, corn meal, shrimp head meal, meat and bone meal and squid meal was evaluated in four species: red snapper (Lutjanus argentimaculatus), giant grouper (Epinephelus lanceolatus), black tiger shrimp (Penaeus monodon) and white shrimp (Penaeus merguiensis). Feeding experiments were conducted in triplicate for each respective species. The average body weight of experimental animals during 8 weeks of feeding periods were 2.76-21.05 g, 67.80-170.18 g, 2.76-12.42 g and 2.76-12.21 g, respectively. The reference diet and test diets (70 percent reference diet and 30 percent of each feed ingredient) were fed to the experimental animals to apparent satiation. The results showed that the apparent digestibility of protein in fish meal, defatted soybean meal, wheat gluten, corn meal, shrimp head meal, meat and bone meal and squid meal were respectively 90.5, 86.0, 95.7, 76.1, 83.4, 88.0 and 92.2 percent for red snapper, 94.0, 85.9, 95.6, 82.1, 81.3, 84.0 and 88.1 percent for giant grouper, 89.1, 68.9, 86.2, 60.2, 63.2, 63.8 and 80.9 percent for black tiger shrimp, and 91.5, 89.6, 86.3, 62.8, 63.1,63.6 and 81.0 percent for white shrimp. This indicated that both red snapper and giant grouper can efficiently digest proteins of these ingredients except for corn meal which was less digested in red snapper. While black tiger shrimp and white shrimp could efficiently digest the proteins in fish meal, defatted soybean meal, wheat gluten and squid meal better than those in corn meal, shrimp head meal and meat and bone meal. In addition, both marine fish species showed better ability to digest those protein ingredients than the other two species of marine shrimp.
显示更多 [+] 显示较少 [-]