Digestibility of various feedstuffs by post-juvenile chinook salmon (Oncorhynchus tshawytscha) in sea water. 2. Measurement of digestibility

Apparent protein and energy digestibility of common and alternative feed ingredients by Atlantic cod, Gadus morhua (Linnaeus, 1758)

“…The highly variable nature of animal by-product meals is also reflected in energy ADC where the values reported for the species listed above are also highly variable for poultry by-product meal (65-91%) and hydrolyzed feather meal (57-85%). Our values for poultry by-product meal (71.0%) and hydrolyzed feather meal (58.9%) are consistent with those reported for Chinook salmon at 72% and 57%, respectively (Hajen et al, 1993). The energy ADC of hydrolyzed feather meal is also similar to that of Atlantic halibut at 62% (Peach, 2005).…”

“…The value for herring meal (93%) is similar to that previously reported for haddock (Melanogrammus aeglefinus)(94-96%) (Tibbetts et al, 2004;Kim et al, 2006) and salmonids such as rainbow trout (Oncorhynchus mykiss), Atlantic salmon (Salmo salar), coho salmon (Oncorhynchus kisutch) and Chinook salmon at 89-96% (Anderson et al, 1997;Hajen et al, 1993;Sugiura et al, 1998;Burel et al, 2000;Cheng and Hardy, 2002). The value for anchovy meal (92%) is similar to those reported for salmonid species, which is in the range of 86-94% (Anderson et al, 1995;Hajen et al, 1993;Sugiura et al, 1998Sugiura et al, , 2000Thiessen et al, 2004;Glencross et al, 2005). Protein ADCs of fish meals measured with cod are also similar to those reported for turbot (Psetta maxima), seabass (Dicentrarchus labrax) and Atlantic halibut (Hippoglossus hippoglossus)a t9 1 -96% (Gomes da Silva and Oliva-Teles, 1998; Burel et al, 2000;Peach, 2005).…”

“…Our value reported for cod (80%) is within this range and also consistent with that reported (80%) for gilthead seabream (Sparus aurata) (Lupatsch et al, 1997). Protein ADC of hydrolyzed feather meal is higher for salmonids at 71-87% (Hajen et al, 1993;Sugiura et al, 1998Sugiura et al, , 2000Bureau et al, 1999;Cheng et al, 2004) than that reported here for cod (62%) but similar to that reported for Atlantic halibut (58%) (Peach, 2005). The highly variable nature of animal by-product meals is also reflected in energy ADC where the values reported for the species listed above are also highly variable for poultry by-product meal (65-91%) and hydrolyzed feather meal (57-85%).…”

“…Animal by-product meals are highly variable in proximate composition based upon several factors (raw material source and freshness, production processes and storage) and, as such, the reported values for protein ADC are also highly variable in fish studies. Protein ADC values reported for poultry by-product meal for salmonids (Hajen et al, 1993;Sugiura et al, 1998;Bureau et al, 1999;Cheng and Hardy, 2002;Cheng et al, 2004) and Atlantic halibut (Peach, 2005) are in a wide range of 74-96%. Our value reported for cod (80%) is within this range and also consistent with that reported (80%) for gilthead seabream (Sparus aurata) (Lupatsch et al, 1997).…”

Utilization of Feather Meal as a Protein Source in the Diet of Juvenile Japanese Flounder

“…The low digestibility of feather meal protein is also reported with chinook salmon. 26) In soybean meal, it has been shown that the treatment method such as heating, acid-washing, or alcohol wash ing has a serious effect on its nutritional value. 1,2.10,15)…”