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A note on the digestibilities of nitrogen and amino acids in meat, skimmed-milk and fish meals in young pigs

Published online by Cambridge University Press:  02 September 2010

S. Green
S. Green
Affiliation:
A.E.C. Rhône-Poulenc Animal Nutrition, 03600 Commentry, France
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Extract

In order to compare the digestibilities of amino acids in meat, skimmed-milk and fish meals, isonitrogenous, semi-purified diets containing these foodstuffs were given to five castrated male pigs, of 13 kg live weight, with ileo-rectal anastomoses. Apparent digestibilities were calculated as (amino acid consumption —Heal digesta amino acids)Iamino acid consumption. In the order, meat, milk and fish meal, digestibilities were: of N, 0·80, 0·84, 0·88 (s.e.d. 0·021); of lysine, 0·84, 0·94, 0·94 (s.e.d. 0·011); of threonine, 0·81, 0·86, 0·91 (s.e.d. 0·017); of methionine, 0-86, 0·94, 0·94 (s.e.d. 0·006). In vitro solubility of N in 0·2 gll solution of pepsin and hydrochloric acid was 0·93 (s.e. 0·003) for meat, 0·97 (s.e. 0·001) for milk, and 0·95 (s.e. 0·001) for fish meal. In conclusion, the digestibilities of essential amino acids were greater in the milk and fish meals, than in the meat meal.

Type
Research Article
Information
Animal Production , Volume 48 , Issue 1 , February 1989 , pp. 237 - 240
Copyright
Copyright © British Society of Animal Science 1989

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References

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