Total sulfur amino acid requirement of tilapia

Tilapia is fast becoming one of the most important
farmed fish species. Since protein is one of the
most expensive components of tilapia feeds, its
utilization must be optimized and the cost
minimized. The development of commercial feeds for
tilapia has been traditionally based on the use of
fish meal as the main protein source. However, the
limited supply coupled with an increasing demand
from the animal feed industry result in a high price
for this ingredient. Thus it is critical that
tilapia feed industry reduce its reliance on fish
meal. Quite often, methionine is one of the most
limiting amino acids in non-fish meal protein
sources used to formulate commercial tilapia feeds.
In order to maximize the utilization of these
protein sources, methionine requirement must be
precisely determined. A series of studies have been
conducted to evaluate the possibility of using
alternative plant and animal protein sources to
replace fish meal in practical diets, as well as
determine the TSAA requirement and replacement value
of cystine for methionine in semi-purified diets and
apply these research findings to practical diets for
juvenile tilapia.

Autorentext

Tri N. Nguyen, Ph.D at Department of Fisheries and Allied Aquacultures, Auburn University, Alabama, USA. Current position: Vice Dean, Faculty of Fisheries, Nong Lam University, Thu Duc district, Ho Chi Minh city, Viet Nam. Professional experience: Aquatic animal nutrition, aquaculture technique.

Klappentext

Tilapia is fast becoming one of the most important farmed fish species. Since protein is one of the most expensive components of tilapia feeds, its utilization must be optimized and the cost minimized. The development of commercial feeds for tilapia has been traditionally based on the use of fish meal as the main protein source. However, the limited supply coupled with an increasing demand from the animal feed industry result in a high price for this ingredient. Thus it is critical that tilapia feed industry reduce its reliance on fish meal. Quite often, methionine is one of the most limiting amino acids in non-fish meal protein sources used to formulate commercial tilapia feeds. In order to maximize the utilization of these protein sources, methionine requirement must be precisely determined. A series of studies have been conducted to evaluate the possibility of using alternative plant and animal protein sources to replace fish meal in practical diets, as well as determine the TSAA requirement and replacement value of cystine for methionine in semi-purified diets and apply these research findings to practical diets for juvenile tilapia.