Caroline G. Chewning Stark, C. R., & Chewning, C. G. (2012). The effect of sieve agitators and dispersing agent on the method of determining and expressing fineness of feed materials by sieving. ANIMAL PRODUCTION SCIENCE, 52(1), 69–72. https://doi.org/10.1071/an11124 Stark, C. R., Spencer, B. E., Shih, J. C. H., Chewning, C. G., & Wang, J. J. (2009). Evaluation of keratinase stability in pelleted broiler diets. JOURNAL OF APPLIED POULTRY RESEARCH, 18(1), 30–33. https://doi.org/10.3382/japr.2008-00038