1. A survey of the incidence and causes of mortality in pigs;Anonymous;Vet Rec,1959
2. Dead pigs by the bucketfuls;Anonymous;National Hog Farmer,1987
3. Effect of management schemes and feeding on sow productivity;Aumaître,1983
4. Improvement of piglet survival rate in relation to farrowing systems and conditions;Aumaitre;Ann Recher Vet,1984
5. Environment and animal health in piglet production;Backstrom;A field study of incidences and correlations. Acta Vet Scand,1973