Microbiological method for assaying lincomycin in animal feed: collaborative study.

A W Neff; R W Thomas

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PubMed · 363677

Microbiological method for assaying lincomycin in animal feed: collaborative study.

A W Neff·R W Thomas

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Abstract

A microbiological assay for determining lincomycin in swine feed, supplement, and a vitamin-mineral premix was studied collaboratively in 16 laboratories. The design of the study involved a complete feed, feed supplement, and a vitamin-mineral premix covering a range of fortification from 20 to 80 g/ton and 80 to 2600 g/ton. Two methods of sample preparation were used depending on the concentration of lincomycin in the sample. Statistical evaluation of the results from the 2 methods indicated that 10 and 11 collaborators, respectively, had mean recoveries which were not significantly different from one another. Ten laboratories obtained a mean recovery of 112.2% (range 102.3--123.5%) for the lower level, and 11 laboratories obtained a mean recovery of 104.4% (range 100.0--107.7%) for the higher level. The method has been adopted as official first action.

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Animal Feed Animals Lincomycin Microbiological Techniques Swine Journal Article

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A W Neff, R W Thomas. 1978. Microbiological method for assaying lincomycin in animal feed: collaborative study.. https://pubmed.ncbi.nlm.nih.gov/363677/

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