1. Brooks , P. H. P. H. Simmins 1980 Recent findings on the effect of Biotin supplementation on reproductive performance and the maintenance of hoof integrity in the female pig Whitehead , C. C. P. H. Brooks P. H. Simmins Recent research on the responses of poultry and pigs to supplementary Biotin
2. Brooks , P. H. 1983 Persönliche Mitteilung
3. Bryant , K. L. 1982 An assessment of the Biotin needs of developing gilts and reproducing sows in a modern production system Thesis Virginia Polytechnic Institute and State University Blacksburg
4. Influence of supplemental Biotin on toe lesions, soundness scores and hair characteristics in gilts and sows fed two types of grain;Bryant;J. Anim. Sci.,1983