OBJECTIVE Environmental estrogens at an elevated concentration are known to produce adverse effects on human and animal life. However, the majority of researches have been focused on industrial discharges, while the impact of livestock wastes as a source of endocrine disrupters in aquatic environments has been rarely elucidated. In order to investigate the contribution of environmental estrogen...

Foot-and-mouth disease is one of the most contagious diseases of animal livestock. We used statistical tools to explore the dynamics of epidemics and to evaluate the consequences of virus reintroduction in France. We developed a stochastic farm-based model adapted to the French farm structure from previous modeling works following the 2001 epidemic in the United Kingdom. This model depends upon...

This article presents suggestions toward safer animal handling utilizing the results of a qualitative study of women dairy farmers in Finland. A major proportion of injuries (43%) occur in livestock-related work in Finnish agriculture. An even greater proportion of women's farm injuries (77%) is related to animals. We investigated the working conditions often women dairy farmers. Data were coll...

Mixed farming systems are gaining interest both as a risk management strategy and to apply agroecological principles. This study set out assess the sustainability of mixed compared their specialized counterparts. The Orfee bioeconomic farm model was used simulate three farms: beef dairy, sheep, cash crop beef, under 1990–2017 prices policies in France. Several criteria were computed at two scal...

This simulation study was to evaluate low cost feeding strategies in response to higher cost of commercial concentrates to maintain current milk sales from dual purpose cattle herds in the humid lowlands of western Venezuela. Data were from farm surveys in 1987 and 1988. Baseline net margins from milk and beef per cow per year were $132 and $99 for two farm cases with average dally milk of 10 a...

OBJECTIVE To identify major environmental and farm management factors associated with the occurrence of tuberculosis (TB) on cattle farms in northeastern Michigan. DESIGN Case-control study. SAMPLE POPULATION 17 cattle farms with infected cattle and 51 control farms. PROCEDURE Each case farm (laboratory confirmed diagnosis of Mycobacterium bovis infection) was matched with 2 to 4 control ...