Effects of partial replacement of fish meal by yeast hydrolysate on complement system and stress resistance in juvenile Jian carp ( Cyprinus carpio var. Jian)

2017 ◽  
Vol 67 ◽  
pp. 312-321 ◽  
Author(s):  
Xiang-Yang Yuan ◽  
Wen-Bin Liu ◽  
Chao Liang ◽  
Cun-Xin Sun ◽  
Yun-Fei Xue ◽  
...  
Keyword(s):  
Cyprinus Carpio ◽  
Complement System ◽  
Stress Resistance ◽  
Fish Meal ◽  
Partial Replacement ◽  
Yeast Hydrolysate ◽  
Carp Cyprinus Carpio ◽  
Jian Carp

scholarly journals Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1215
Author(s):  
László Berzi-Nagy ◽  
Attila Mozsár ◽  
Flórián Tóth ◽  
Dénes Gál ◽  
Zoltán Nagy ◽  
...  
Keyword(s):  
Water Quality ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Nutrient Loading ◽  
Fish Meal ◽  
Pond Water ◽  
Long Term Effects ◽  
Plant Oil ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio

Semi-intensive common carp (Cyprinus carpio) farm technology uses several feed types affecting the growth performance; however, we know less about their long-term effects on water quality. Herein, we evaluated the effects of three commonly used feeds—moderate levels of fish meal and fish oil feed (FF), plant meal and plant oil feed (PF), and cereal feed (CF) on the nutrient (total nitrogen (TN), total phosphorus (TP) and organic matter (OM)) content of the pond water. The experiment was carried out over three consecutive years from juveniles to market-sized fish. The type of feed affected the net yields, but generally, it did not affect the water quality. The year of sampling, however, was a significant factor affecting TN, TP, and OM, whose concentrations decreased during the three years. Our findings highlight that the age of the stocked fish on water quality has a more pronounced effect than the nutrient profile of the supplementary feed. Additionally, the plant-based feed could provide comparable net yields as the fish meal-based feed without additional nutrient loading in the water column, reinforcing the sustainability of alternative feeds in semi-intensive carp farming.

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