Growth performance, digestive enzyme activities, intestinal histology and glucose metabolism in abalone Haliotis discus hannai affected by different starches in practical diets
IF 2.5 2区 农林科学Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Wenhao Fan , Heng Zhang , Pengfei Zhang , Zhenhua Wu , Hongyang Zhang , Xinxin Li , Wanyou Zhou , Kangsen Mai , Wenbing Zhang
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引用次数: 0
Abstract
The present study was conducted to explore the effects of different sources of dietary starch on the growth performance, gut health and glucose metabolism of abalone Haliotis discus hannai. Four experimental diets formulated with wheat starch, sweet potato starch, pea starch and corn starch, respectively, were fed to abalones (initial weight 4.56 ± 0.05 g) for 90 days. The results showed that the weight gain rate (WGR) of abalone in the pea starch group was the significantly highest (192.51 %) one, while the WGR in the wheat starch group was the lowest (174.36 %) one among all the four groups (P < 0.05). The intestinal α-amylase activity was higher in the corn starch and pea starch groups. The intestinal lipase activity was highest in the corn starch group, followed by the wheat starch group, and lowest in the sweet potato starch group. In terms of intestinal morphology, the intestinal villus width, height and perimeter ratio had the highest values in the pea starch group. In terms of glucose metabolism, both gluconeogenesis and glycolysis were at lower levels in the pea starch group, while glycogen synthesis was at a higher level. In conclusion, among the wheat starch, sweet potato starch, pea starch and corn starch, considering the growth, digestion and glucose metabolism, pea starch is recommended as a better dietary starch source for abalone.
期刊介绍:
Animal Feed Science and Technology is a unique journal publishing scientific papers of international interest focusing on animal feeds and their feeding.
Papers describing research on feed for ruminants and non-ruminants, including poultry, horses, companion animals and aquatic animals, are welcome.
The journal covers the following areas:
Nutritive value of feeds (e.g., assessment, improvement)
Methods of conserving and processing feeds that affect their nutritional value
Agronomic and climatic factors influencing the nutritive value of feeds
Utilization of feeds and the improvement of such
Metabolic, production, reproduction and health responses, as well as potential environmental impacts, of diet inputs and feed technologies (e.g., feeds, feed additives, feed components, mycotoxins)
Mathematical models relating directly to animal-feed interactions
Analytical and experimental methods for feed evaluation
Environmental impacts of feed technologies in animal production.