Nutrient Utilization and food Conversion of Rainbow Trout, Onchorhynchus mykiss, Subjected to Mixed Feeding Schedules
Öz
Fish were offered either restricted feeding (5% of body weight or 1% body weight as maintenance requirement) or appetite feeding subdivided into three equal feeds. The best (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) was observed for feeding schedule I (control), for fish fed to appetite throughout. Feeding schedule II showed significantly the highest (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) in comparison with other feeding schedules. Growth rate and food conversion efficiency (FCE) in feeding schedule II were markedly higher during phase II in comparison with phase I. Phase I (0-4 weeks) growth rate slightly increased in fish fed restricted ration throughout (T-II). In contrast, in phase II (4 - 8 weeks) fish were fed to appetite throughout (T-II) showed a rapid increase in fortnightly growth response and higher growth rates, feed consumption and FCE.
Anahtar Kelimeler
FCR SGR growth rate Onchorhynchus mykiss feed restriction nutrient utilization
Nutrient Utilization and food Conversion of Rainbow Trout, Onchorhynchus mykiss, Subjected to Mixed Feeding Schedules
Öz
Fish were offered either restricted feeding (5% of body weight or 1% body weight as maintenance requirement) or appetite feeding subdivided into three equal feeds. The best (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) was observed for feeding schedule I (control), for fish fed to appetite throughout. Feeding schedule II showed significantly the highest (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) in comparison with other feeding schedules. Growth rate and food conversion efficiency (FCE) in feeding schedule II were markedly higher during phase II in comparison with phase I. Phase I (0-4 weeks) growth rate slightly increased in fish fed restricted ration throughout (T-II). In contrast, in phase II (4 - 8 weeks) fish were fed to appetite throughout (T-II) showed a rapid increase in fortnightly growth response and higher growth rates, feed consumption and FCE.
Anahtar Kelimeler
FCR SGR growth rate Onchorhynchus mykiss feed restriction nutrient utilization
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Nisan 2011 |
| Yayımlandığı Sayı | Yıl 2011 Cilt: 11 Sayı: 2 |