| a perspective on forage production in canada. | over the past decade, the cattle industry has experienced practically a full circle. with the promising beef prices in the early 1970s, with the glut of grain and a generous assist from government incentive programs, the forage acreage and cattle population have increased at a record rate. by 1974, the tide began to turn - grain prices went up sharply and beef prices became sluggish - and by 1976 a major crisis faced the producers. the cattle industry which had been developing on a cheap grain e ... | 1980 | 7363269 |
| the brucellosis and tuberculosis status of wood bison in the mackenzie bison sanctuary, northwest territories, canada. | postmortem examinations were done on 51 wood bison (bison bison athabascae) killed as part of a multidisciplinary research project in the mackenzie bison sanctuary, northwest territories, canada, between 1986 and 1988. there was no gross, histological or bacteriological evidence of brucellosis or tuberculosis in these bison. traumatic lesions were seen in one calf that had been attacked by wolves and a second calf that had been gored. antibody titers to brucella abortus were not found in sera fr ... | 1993 | 8269360 |
| implications of agricultural and wildlife policy on management and eradication of bovine tuberculosis and brucellosis in free-ranging wood bison of northern canada. | although disease is often an important factor in the population dynamics of wild ungulates, it is largely the threat-both real and perceived-that sylvatic disease reservoirs pose to the health status of commercial livestock or game farm industry that has led governments to establish policy and legislation for disease management, trade, and movement. with respect to bovine tuberculosis and brucellosis in wildlife, policies are largely borrowed from the existing regulatory framework for domestic l ... | 2002 | 12381598 |
| an outbreak of bovine tuberculosis in an intensively managed conservation herd of wild bison in the northwest territories. | an outbreak of bovine tuberculosis was detected in the hook lake wood bison recovery project captive-breeding herd in march 2005. this study investigates the most likely source of mycobacterium bovis and identifies difficulties associated with salvaging tuberculosis-free animals from an endemically infected herd. | 2010 | 20808568 |
| synergism between ammonia and phenols for hybomitra tabanids in northern and temperate canada. | baits for tabanids (diptera: tabanidae) were tested in the northwest territories (60 °n) and ontario (45 °n) using nzi traps. tests targeted ammonia, phenols/cow urine and octenol. about 200 000 tabanids were captured in 15 experiments with a maximum capture of 4182 in one trap in 1 day. in the northwest territories, phenols, urine and octenol were effective single baits for only some species. at both locations, adding ammonia to an unbaited or an octenol-baited trap had no effect on catches. by ... | 2011 | 22150639 |
| a review of anthrax in canada and implications for research on the disease in northern bison. | during the first half of the century, the majority of anthrax outbreaks in canada occurred in the southern portions of ontario and quebec and were often associated with pastures contaminated by effluent from textile industries dealing with imported animal materials. in 1952, introduction of federal regulations requiring disinfection of these materials greatly reduced the incidence of anthrax in eastern canada. since 1962, domestic outbreaks of the disease have been reported almost exclusively in ... | 1999 | 10475950 |
| copper deficiency in a herd of captive muskoxen. | at necropsy, a mature muskox cow was found to have exceedingly low serum and liver copper concentrations of 4.8 = mumol/l and 0.02 mmol/kg, respectively. serum copper levels were also low in remaining members of the herd but returned to normal after parenteral treatment with calcium copper edetate. | 1998 | 9592616 |