TY  - JOUR
T1  - Effects of Vitamin E on Growth Performance, Survival Rate, Hematological Parameters Response to Heat Stress in Rainbow Trou (<I>Oncorhynchus mykiss</I>) at Two Stocking Densities
AU - Mohammad, Rahimi AU - Hosein, Ouraji 
JO  - Journal of Aquaculture Feed Science and Nutrition
VL  - 6
IS  - 2
SP  - 39
EP  - 46
PY  - 2014
DA  - 2001/08/19
SN  - 2070-1667
DO  - joafsnu.2014.39.46
UR  - https://makhillpublications.co/view-article.php?doi=joafsnu.2014.39.46
KW  - Vitamin E
KW  -growth
KW  -Oncorhynchus mykiss
KW  -hematological parameters
KW  -temperature stress
AB  - The effects of vitamin E were studied in fingerlings rainbow 
  trout (<I>Oncorhynchus mykiss</I>) kept at two different densities. Fingerlings 
  (initial weight of 2.1&plusmn;0.1 g) were reared in triplicate groups in fiberglass 
  tanks at densities of 400 and 800 m<SUP>3</SUP>. The fish were fed with 4 diets 
  containing different levels of vitamin E (0, 100, 200 and 1000 mg vitamin E 
  kg<SUP>-1</SUP>diet) for 9 weeks. The at end of feeding experiment fish were 
  exposed to different temperatures (24, 26 and 28&deg;C) and evaluate survival. 
  The growth performance in fish fed diets containing different levels of vitamin 
  E (100, 200 and 1000 mg kg<SUP>-1</SUP> diet) was significantly (p&lt;0.05) 
  higher than those fed diet without vitamin E. Levels of vitamin E significantly 
  (p&lt;0.05) affected the hematocrit, hemoglobin, Red Blood Cells (RBC) count, 
  Mean Corpuscular Hemoglobin (MCH) and eosinophil in rainbow trout. However, 
  it did not change Mean Corpuscular Hemoglobin Concentration (MCHC), lymphocyte 
  and monocyte values. Stocking density had significant effect on eosinophil count 
  only. Survival of the treated fish was significantly (p&lt;0.05) higher than 
  the control in response to heat stress. The highest effects of vitamin E was 
  at level of 200 mg kg<SUP>-1</SUP> and a density of 400 pieces m<SUP>-3</SUP>.
ER  -