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|Type:||Artigo de periódico|
|Title:||Effect Of Drying Method Of Bovine Blood On The Performance Of Growing Diets For Tambaqui (colossoma Macropomum, Cuvier 1818) In Experimental Culture Tanks|
|Abstract:||A process for drying bovine blood by cooking it with broken rice meal and further pelletizing and drying it was developed. This new blood/rice meal (BR) was compared with commercial blood meal (BM) as a feed ingredient for juvenile tambaqui. The fish were fed isocaloric and isonitrogenous diets which contained fish meal, soybean bran, wheat bran, corn meal, BR and BM. The two latter ingredients were added to replace 25, 50 and 75% of the fish meal. A commercial tropical fish feed was also included in the feeding trials. The experiment was carried out for 21 weeks. Length, weight, feed conversion and protein efficiency ratios were determined at 3-week intervals. Results indicated that the diet containing BR at the level of 25% replacement of fish meal promoted the best fish weight and length gain. When BR replaced 75% of fish meal, there was a 50% decrease in growth rate. Fish fed the diets containing BM at the 25 and 50% replacement level for fish meal had an inferior growth rate than those fed the BR-containing diets. Replacement of 75% of the fish meal diet by either BR or BM resulted in a dramatic reduction in growth rate. Fish fed the commercial feed had an intermediate growth rate compared to the other treatments. Fish muscle from both the BR- and BM-fed fish showed an increase in iron content, which was directly related to the iron content of the diets. © 1994.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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