White-fish meal

Table 4.1.44A. White fish meal (IFN 5-00-025). Fishmeal is the clean, dried, ground tissue of undecomposed whole fish or fish cuttings, either or both, with or without the extraction of part of the oil (AAFCO, 2005). White fish meal is a product containing not more than 60g fat/kg and not more than 40g/kg salt, obtained from white fish or white fish waste such as filleting offal. For organic feeding the fat should be extracted by mechanical means.

Pepsin Obtained from the glandular layer of hog stomach. White to light-tan, water-soluble powder amber paste or clear amber to brown aqueous liquids. Major active principle pepsin. Typical applications preparation of fish meal and other protein hydrolysates clotting of milk in manufacture of cheese (in combination with rennet). 

Carbohydrase and Protease, Mixed (Bacillus licheniformis var.) Produced as an off-white to brown, amorphous powder or a liquid by controlled fermentation using Bacillus licheniformis var. Soluble in water (the solution is usually light yellow to dark brown) but practically insoluble in alcohol, in chloroform, and in ether. Major active principles (1) a-amylase and (2) protease. Typical applications preparation of starch syrups, alcohol, beer, dextrose, fish meal, and protein hydrolysates. 

Romarheim, O.H. M.A. Aslaksen T. Storebakken A. Krogdahl A. Skrede. Effect of extrusion on trypsin inhibitor activity and nutrient digestibility of diets based on fish meal, soybean meal and white flakes. jArch. Anim. Nutr. 2005, 59, 365—375. 

The typical aroma substances of egg white and egg yolk are still unknown. The fishy aroma defect that can occur in eggs is caused by trimethy-lamine TMA, which has an odor threshold that depends on the pH (25 pg/kg, pH 7.9) because only the undissociated form is odor active. TMA is formed by the microbial degradation of choline, e. g., on feeding fish meal or soy meal. Normally, TMA does not interfere because it is enzymatically oxidized to odorless TMA oxide. However, in feed, e. g., soy meal, substances exist which could inhibit this reaction. 

Eating fish tonight You should have white wine with the meal. 

When rainbow trout have been denied food for 6 days, meals bring about a post-prandial surge in protein synthesis in all the tissues (McMillan and Houlihan 1988). The time course of the protein synthesis response appears to be tissue-specific. Tissue protein synthesis rates in the ventricle and red and white muscle exhibited a graded response where a single meal resulted in synthesis rates lying between the fasted and continually fed states. The gill, stomach and intestine responded with a rapid rise within 3 h to the levels found in continually fed fish and this stimulation was maintained. The liver demonstrated a transient increase in protein synthesis which reached a peak at 3 h, which subsequently declined. Subsequent analysis has revealed that the peak found in the liver occurred within 1 h of the meal (McMillan and Houlihan 1989). A stimulation of muscle protein synthesis has been found in salmon 9 h after feeding (Fauconneau et al. 1989). 

Eat up to 12 ounces (two average meals) a week of the following fish and shellfish that are lower in mercury Shrimp, canned light tuna, sahnon, pollock, and catfish. Albacore ( white ) tuna has more mercury than canned light tuna so no more than 6 ounces (an average meal) of albacore tune should be eaten per week. 

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