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As the young stock was kept on rearing contract farms in some of the herds, only the 913 animals (602 from dairy herds and 311 from beef herds) aged two years or older were considered for the determination of prevalence in order to have a valid comparison across all herds.
For calculation of the within-herd prevalence, the infection status of animals aged two years or older only was considered, in order to have a comparable sample population across all farms, as the heifers younger than two years of several herds were kept on separate farms under rearing contract and therefore were not available for testing.
†Buying heifers, own rearing, contract rearing.
Similar(57)
Considering that the heifers of several herds were away on rearing contracts at the time of fecal sampling, the proportion of herds with shedding young animals was similar in both groups, with 50% (3/6) in beef herds and 42.9% (3/7) in dairy herds.
Dairy and beef heifers generally stayed at the contract rearing farm until approximately one month before calving.
The role of the exposure of heifers to MAP in the transmission cycle should be further evaluated in the light of the unexpected high number of animals younger than 2 years shedding MAP and of the fact that 40% of the infected herds send their heifers to contract rearing farms, where they could potentially infect heifers from other farms.
Their rear segments contract, which pushes blood into their forward segments, lengthening them.
Rearing trees is like rearing children.
The belief in some traditional agricultural societies that "rearing a son for old age is like storing grain for a famine" is probably one of the most ancient forms of generational contract.
In August, inter-service rivalry reared its head, when the army handed Boeing a $36m contract to develop a similar weapon, known at the moment as the High Energy Laser Technology Demonstrator.The army's Space and Missile Defence Command is also in the game.
Then they rear back.
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