J. Anim Sci.
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J. Anim Sci. 1982. 55:578-589.
© 1982 American Society of Animal Science
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Evaluation of Shrimp and King Crab Processing by Products as Feed Supplements for Mink1,2,

B. E. Watkins3, J. Adair and J. E. Oldfield

Oregon State University, Corvallis 97331

Abstract

Three products derived from shrimp (Pandalus jordani) processing waste and a protein concentrate extracted from king crab (Paralithodes camschatica) waste were evaluated as feed supplements for mink, replacing approximately 10 and(or) 20% of the protein in a standard wet diet (33% protein, dry basis). Mean analyses (protein, Ca, chitin, ether extract) of waste products on a dry basis were as follows: untreated shrimp waste (25.5, 14.4, 19.3, 3.6%); shrimp meal (26.6, 13.8, 17.6, 4.3%); sieved shrimp meal (34, 10.3 10.6, 5%) and crab protein concentrate (67.1, .1%, trace, .5%). Mink of both sexes and strains fed crustacean waste diets generally had lower final weights and weight gains and greater feed consumption than control groups fed a standard diet. These effects were most pronounced in males and, with the exception of the 20% shrimp meal group, appeared to be related to dietary fat level. Lower weight gains by males on the high shrimp meal diet vs the high sieved shrimp meal diet appeared to result from excess Ca intake. General condition and pelt characteristics were not appreciably affected in any of the groups. We conclude that crustacean waste products could be satisfactory protein supplements for mink, provided that the protein and energy concentrations of the diet are maintained at sufficient levels and dietary Ca does not become excessive.

Footnotes

1 Oregon Agr. Exp. Sta. Technical Paper No. 5897

2 Funding provided by Oregon State Univ. Sea Grant.

3 Dept. of Zool., Washington State Univ., Pullman 99164.






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Copyright © 1982 by the American Society of Animal Science.