Understanding fish digestion to make better feeds

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　　Understanding fish digestion to make better feeds 24 Aug 2010
　　Researchers at the University of Gothenburg, Sweden, are hoping to contribute to more energy-efficient aquaculture, if it is better understood of what happens in a fish's body when it eats.
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　　Studies of fish by researcher Henrik Seth from the University of Gothenburg's Department of Zoology have helped to increase our understanding of what happens in parts of the body after one of its most frequently recurring activities: eating.
　　It has long been known that a number of changes take place in the body following food intake, including an increase in blood flow to the stomach and intestines.
　　This happens in humans and other mammals as well as in fish. However, we still know relatively little about the signals that trigger these changes and how they are regulated.
　　Both the volume and the chemical composition of food play a role in how the body reacts.
　　Chemical composition affects energy consumption
　　"It's not just blood flow that is affected by its chemical composition, but also energy consumption in the stomach and intestines, and these factors are believed to be interlinked," says Seth.
　　If energy consumption in the stomach and intestines rises, an increased blood flow will be needed to supply the active tissue with oxygen and nutrients.
　　"Increased blood flow is also important for carrying away absorbed nutrients so that they can be used to nourish different parts of the body and to build up and repair different tissues."
　　The results of Henrik Seth's research also show that parts of a fish's nervous system are involved in this regulation, and that a number of hormones (including cholecystokinin) can affect this regulation depending on the composition of the food.
　　Less energy required
　　It is primarily here that an increased understanding of this field could make it possible to produce fish feeds in the future that require less energy to be broken down and absorbed.
　　"It might then be possible to enhance the growth of farmed fish, which would greatly increase the efficiency of fish farming with less wastage of energy," says Seth.
　　"Using nutrients as efficiently as possible may prove increasingly important as the global population continues to swell."

sunyang

英語水平不太好，還真的就看不明白?。懿荒茏g過來在上?。?/td>

志在高遠(yuǎn)

你是中國人還是外國人

topqiuben

勸樓主帶上中文翻譯，畢竟還是會中文的多！

jefflelele

樓主從那弄的資料，把作者說一下吧

群子

樓主英語水平不錯啊{:3_99:}

志在高遠(yuǎn)

回復(fù) 3# 志在高遠(yuǎn)


    你在賣弄自己

chintien

整篇文章只是在說明標(biāo)題,沒什么研究發(fā)現(xiàn)= =””

lijiepascal

一種想法而已，但什么都沒做啊

liuzhifangxmr

英語不好可以在線翻譯，偶認(rèn)為有點空