Showing 3 results for Carcass Composition
Afshin Ghaljaei Fard, , ,
Volume 5, Issue 2 (9-2016)
Abstract
The present study was conducted to evaluate the effect of Lactobacillus plantarum (KC426951) isolated from the intestine of rainbow trout Guilan on growth factors, carcass composition and the intestinal bacterial flora of rainbow trout (Oncorhynchus mykiss) was conducted. Rainbow trout weighing 3.56±2.24 for 2 weeks were consistent with environmental rearing conditions. Five groups of fish were fed with diets containing 106 (T1), 107 (T2), 108 (T3), 109 (T4), 1010 (T5) cfu g-1 of L. plantarum and control group (T6) without diet containing probiotics were fed for 60 days. Results showed that final weight, final length, growth rate, percent weight were gained in treatment 2 the highest and 5 the lowest level in treated. Also, FCR lowest rates in treatment 2 and treatment 5 were accounted for most (p<0.05). The highest total count of lactic acid bacteria were obtained in the intestine of T4(p<0.05). Maximum carcass protein was observed in T4, and low fat content is related to the control treatment (p<0.05). According to the results obtained from the use of Lactobacillus plantarum could be considered as a positive factor for the improvement of the intestinal bacterial flora, growth performance and carcass composition could be used.
Batoul Adhami, Abdolsamad Keramat Amirkolaie,
Volume 6, Issue 3 (12-2017)
Abstract
This trial was to investigate the effect of emulsifier on growth performance, blood factors and carcass composition in rainbow trout (Onchorhyncus mykiss) fed fat powder diet. A basal diet was formulated using common feed ingredients supplemented with 0.5 and 1% of cholic acid and 2 and 4% of tween80, plus a control diet without emulsifier, leading to five experimental diets. Juvenile rainbow trout with an initial weight of 27.32±2.03 g was fed with experimental diets for 8 weeks. The results showed no significant differences between the value of body weight increasing (BWI), specific growth rate (SGR), feed efficiency ratio (FCR) and hepato somatic index (HSI) (P>0.05) while, visceral somatic index (VSI) was significantly higher in control diet. Emulsifier had significant effects on blood parameters such as white blood cells (WBC), red blood cells (RBC), hematocrit (Hct), hemoglobin (Hb), MCV, MCH and MCHc (P<0.05). Diet containing 0.5% cholic acid showed higher value of WBC while control diet led to higher value of RBC. Results of serum analysis showed that inclusion of emulsifier was effected albumin, glucose and total protein value (P<0.05). 0.5% cholic acid led to the highest value among groups. Assessment of carcass composition showed significant differences among diets (P<0.05). The highest body protein values were observed in diet 0.5% cholic acid while body fat was the lowest in the same diet. It seems that emulsifier could maintain protein by fat utilization and considering no significant differences between different treatments of growth performance addition of 0.5% cholic acid is suggested.
H. Sahraei , F. Ayatollahi , A. Golpour Hassanalideh , A. Pirali Zefrehei , F. Zohieri, A. Hedayati ,
Volume 8, Issue 1 (3-2019)
Abstract
Aims: The aim of the present study was to investigate the immunoval prebiotic performance on growth indices, hematological parameters, and rainbow trout carcass composition.
Materials & Methods: Immunoval prebiotic was added to the diet in 4 levels of 0.05%, 0.1%, 0.15% and 0.2% and a diet without prebiotic was used to feed the control group. Each diet was randomly used for fish with an initial weight of 13.66±0.54g in three replicates.
Findings: After 8 weeks of feeding, the final weight of fish fed with 0.1%, 0.15%, and 0.2% prebiotics was significantly higher than the fish of the control group (p<0.05). The food conversion ratio in all treatments fed with prebiotic was significantly lower than the control group (p<0.05) and the lowest amount was in 0.15% treatment. The specific growth rate in fish fed with prebiotic was higher than the control group (p<0.05). Also, there were significant differences in the parameters of red blood cells, white blood cells, lymphocyte and neutrophil in fish fed with prebiotic diet and the control group (p<0.05). In the carcass analysis, protein content was significantly higher than the control group and the highest amount was seen in 0.1% treatment. The amount of fat and carcass ash decreased significantly in the control group and the lowest amount was observed in 0.15% treatment.
Conclusion: Addition of immunoval prebiotic with 0.2-0.15% rate to rainbow trout diet had positive effects on growth indices, blood parameters, and carcass composition
