A preliminary study of the effects of cold, frozen, or room temperature storage of commercial feeds on growth performance and feed consumption of juvenile rainbow trout (Oncorhynchus mykiss)
Abstract
The storage of commercial feeds in a cool and dry place is a prerequisite management strategy to minimize the deterioration of commercial feeds. This study investigated the effects of feed storage conditions on feed intake and growth performances of juvenile rainbow trout (Oncorhynchus mykiss). A total of 240 juvenile rainbow trout, weighing 8.7–10.5 g, were randomly distributed into four groups. Each group was further subdivided into three replicates with 20 fish in each. The experimental fish were fed to apparent satiation twice daily over a 35-days period using four commercial feeds previously kept at different storage conditions, i.e., room temperature storage (20.8°C), cold storage (10°C), or frozen storages (-1.1°C and -15°C). The feed utilization was assessed by relative feed intake (RFI%) and feed conversion rate (FCR), while growth performance was evaluated by the thermal-unit growth coefficient (TGC) and specific growth rate (SGR). The preliminary findings suggest that the food storage conditions did not significantly affect feed intake and growth performance in juvenile rainbow trout. The findings provide practical information for fish farmers in the management of feed storage, which covers a remarkable proportion of the total production costs in aquaculture facilities.
Keywords
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Hidrobiyoloji , Gıda Mühendisliği
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
15 Aralık 2021
Gönderilme Tarihi
19 Ocak 2021
Kabul Tarihi
14 Ağustos 2021
Yayımlandığı Sayı
Yıl 1970 Cilt: 38 Sayı: 4
Cited By
Partial dietary fishmeal replacement with soy products in grow‐out‐stage Burbot
North American Journal of Aquaculture
https://doi.org/10.1002/naaq.10302