Vitamin K deficiency in cats fed commercial fish-based diets

M. J. Strieker, James Morris, B. F. Feldman, Quinton Rogers

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Clinical signs of vitamin K deficiency have been observed in cats offered two commercial canned diets high in salmon or tuna. Some of the queens and kittens offered these diets had died while survivors had increased coagulation times. Necropsies revealed hepatic and, or, gastrointestinal haemorrhages. Coagulation times of survivors returned to normal after vitamin K therapy. The purpose of this study was to induce a vitamin K deficiency in kittens and determine the dietary requirement. Kittens were offered vitamin K-deficient purified diets containing antibiotics and, or, substances inherent in canned fish diets that may have contributed to the deficiency. Clinical signs of vitamin K deficiency were not observed, even though one purified diet contained only 4 μg K1/kg diet compared with 60 μg in the commercial tuna diet. Therefore, a minimum vitamin K requirement could not be determined using purified diets; nevertheless, canned commercial diets formulated primarily with fish should contain more than 60 μg K1/kg diet.

Original languageEnglish (US)
Pages (from-to)322-326
Number of pages5
JournalJournal of Small Animal Practice
Issue number7
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Small Animals


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