Effects of different fat sources on growth performance and blood biochemical indexes of grass carp
This experiment added different fat sources to the daily feeding of grass carp to study their effects on growth performance and blood biochemical indicators.The 450 grass carp were selected for the experiment and divided into 5 groups on average,with fish oil,lard group,soybean oil group,corn oil,and mixed oil added as fat sources.The experimental period was 30 days.The results showed that compared with the control group,adding different types of fat sources to the diet had a significant impact on the final weight and weight gain rate of grass carp(P＜0.05).Among them,the experimental group with corn oil as the fat source had the most significant effect on improving the growth performance of grass carp(P＜0.05),and the average final weight of grass carp increased by 12.23%compared to the control group;Secondly,adding different types of fat sources to the diet also had a significant impact on the nutritional composition of grass carp(P＜0.05).The experimental group added corn oil fat sources had the most significant difference in muscle protein indicators compared to the control group(P＜0.05),which increased by 7.16%compared to the control group.Finally,adding different levels of fat sources to the diet had a significant impact on immune indicators such as IgA,IgG,and IgM in grass carp serum(P＜0.05).Among them,the experimental group added corn oil fat sources had the most significant difference in serum immune indicators compared to the control group(P＜0.05),with IgA,IgG,and IgM increased by 17.7%,20.9%,and 36.8%,respectively.The research results indicate that adding 5%corn oil as a fat source to the diet has the most significant effect on promoting the growth of grass carp,resulting in the highest weight gain and muscle protein content in the fish body.
万方数据
维普
