Brown, Dan L

Associate Professor
I am a nutritionist seeking to remove constraints to the sustainable delivery of high quality nutrients to vulnerable members of the world`s population through improvement of animal agricultural systems. Of particular interest to me are the dangers posed by naturally occurring toxins in the food chain. My undergraduate education in Animal Science came from the University of California, Davis as did certification for teaching Biology and Agriculture in secondary schools. My Ph.D. research concerned the basic biochemistry of dietary manipulation of milk composition and resulted in a degree in Nutrition at Cornell University. Since then, I have been a production systems specialist for Winrock International in Western Kenya, an Animal Science faculty member at UC Davis (11 years) and Cornell University (12 years) and a staff scientist at the International Livestock Research Institute in Ethiopia.

research

research and scholarship focus

Nutritional Toxicology is the study of naturally occurring toxins in the food chain and their metabolism. Currently, this laboratory is focusing on two toxins produced by fungi (mycotoxins): the carcinogenic, anti-nutritive, immunosuppressant aflatoxins and the powerful environmental estrogens related to zearalenone. Other nutritional toxicants investigated by this group include canavanine, urushiol, cadmium, taxanes, the maple toxins, toxic fatty acid imbalances in the black rhino, diaminobutanoic acid derivatives, ascaridole, copper, sesbania saponins, methyl xanthines and monensin.|This Limited Resource Animal Agriculture program includes both smallholder systems in developing countries (such as Ethiopia, Kenya and Haiti) as well as the US. Currently, this investigator`s interest is in removing barriers to delivery of vitamin B12 to young children through animal source foods, but has also addressed the use and preservation of crop byproducts, the control of body nutrient reserves and total production system optimization.

research areas

affiliations

faculty appointment in

member of graduate field

other Cornell affiliations

external academic affiliation

teaching

teaching focus

The current focus is the education of a diverse audience in the necessity for and the nature of sustainable, productive relationships between humans and domestic animal species. To this end, I taught three courses of my own in 2007: The Animals That Sustain Us (lecture) ANSC 110, The Animals That Sustain Us (lab) ANSC 111, Sustainable Animal Agriculture (Summer Session ANSC 112) and helped out with a few lectures in Animal Nutrition (ANSC 212), Introductory Animal Biology, ANSC 150 and an internationally oriented Vet College course (VM615).

service

outreach focus

This laboratory is a public resource for those interested in learning about naturally occurring toxins in their environment. The main feature of this effort is the Cornell University Poisonous Plants Database, but that database extends into realms beyond poisonous plants to include other nutritional toxicants such as excess nutrients, mycotoxins and feed additives. The public provides this laboratory with excellent questions, ideas and leads concerning which emerging toxicants merit investigation.
Keywords: and, limited resource animal agriculture, nutritional toxicology