Hogwatch Manitoba

A Review of the Effects of the Livestock Industry
on the Environment and Human Health

Dr. E. Pip
University of Winnipeg

Original presentation: Manitoba Livestock 2000 Hearings, 24 July 2000
Updated: 9 December 2000

TABLE OF CONTENTS

Introduction	3
Odor and atmospheric emissions	8
Ammonia	10
Hydrogen sulphide	11
Other gaseous emissions	12
Noise	13
Nutrient enrichment	14
Phosphorus	14
Nitrogen	15
Algae	17
Heavy metals	19
Organic matter	20
Pathogens	21
Prions	22
Viruses	23
Bacteria	24
Protozoa	27
Helminthic parasites	28
Mortality disposal	30
Drugs and vaccines in the environment	31
Aquatic ecosystems	34
Wildlife	37
Occupational health	38
Siting and manure management	40
Monitoring and enforcement	44
Human health and the consumer	48
Politics and pigs: which is which?	54
References	60