Studies on the Fermentative Lung Powder as a Feedstuff for Epinephelus malabaricus Culture.

• Main Authors: Fang, Ray, 方雷
• Other Authors: Liu Chai Lien
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/03983620170683780062

碩士 === 國立海洋大學 === 水產養殖學系 === 85 === The experiment is to investigate the availability of by- product of stockbreeding porcine lung powder as a protein source to replace fish meal for Epinephelus malabaricus culture. Fermentative lung powder was made of porcine lung,soybean meal and rice bran,and its nitrogen/carbonratio was 8:1 for fermentation conditions.Fermentation temperature of fermentative lung powder was 30℃ and fermentation time of fermentative lung powder was within 40 hours.The crude protein content of porcine lung powder that treatment of porcinelung powder,soybean meal and rice bran with Aspergillus oryzae was 40.22％,and fermentative lung powder is fragrant and without offensive smell. The content of crude protein in experimental diets is to maintain 48 ％.The experimental diets for Epinephelus malabaricus devide into 6 groups.Addition of fermentative lung powder to replace fish meal in experimental diets are 0 ％,20 ％,40 ％,60 ％,80％ ,100％ respectively.Energy content in experimental diets is 350 Kcal/100g in all groups.The initial net body weight of Epinephelus malaaricus is 20.90 ± 6.72g. After feeding period of 70 days,the average percentage of fish increasing wet body weight ; feed conversion ratio and apparent digestibility of 6 treatments are significant,and the results of the group of No.1 contains 0 ％ of fermentative lung powder is the best among 6 experimental dietary groups.Fromthe view point of HSI and Glycogen content of experimental fish as theincreasing content of fermentative lung powder to replace fish meal in experimental diets. At this point,we found that Epinephelus malabrcus is less available to use fermentative powder to construct its tissue,and to use fermentative powder as energy is high. Thus,it is reasonable to conclude that fermentative lung powder as a feedstuff for Epinephelus malabaricus is not a better protein source.Following above experimence,as dealing with fermentative by-product of stockbreeding in artificial diet of aquaculture and the development of new protein source,weshould pay attention to that the different quality requirement of protein sourceamong various kinds of fish with different dietary habbit.In view of this,we may get advantage from fermented with kinds of fermentative molds and by-product of stockbreeding to improve the quality of dietary protein content in the future.