Research Track
Recycled sand safe for bedding
“Recycled sand can safely be used to bed free stalls on dairy farms,” concludes an on-farm study published in the December 2005 Journal of Dairy Science. The study found that the number of gram-negative bacteria, coliforms, Klebsiella, and Streptococcus in recycled sand was similar to that found in clean sand up to seven days after bedding was added.
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Tile lines vulnerable to runoff
Preliminary research presented at the Professional Dairy Producers of Wisconsin Dairy Policy Summit offered some new insight regarding runoff through tile lines.
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6X milking: No impact on reproduction
Frequent-milking in early lactation doesn’t always increase milk production. (Please see “What’s new with 4X/6X milking?” on page 32 of the January issue.) It also may not affect reproduction.
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6X milking: No change in cow health
Milking cows six times per day for the first 21 days in milk does not appear to impact cow health.
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Does laminitis start at weaning?
How you feed heifers at weaning may set them up for future lameness problems, according to preliminary research from Colorado State University.
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Set limits on gains before puberty
How fast can you grow heifers before puberty without hurting first-lactation milk yield?
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Study explores feasibility of organic dairying
A study of 30 organic dairy farms in Vermont and Maine shows that they may not be as profitable as initially perceived.
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Early-life nutrition impacts milk yield
New research from the University of Arizona shows that the volume of colostrum fed at birth impacts future milk production.
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Consider straw, shavings for calves
Straw and wood shavings appear to be optimal bedding types for calves, according to research from the University of Arkansas.
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New breeding program selects for passive animals
Researchers at Purdue University have designed a new breeding program that emphasizes selecting less-aggressive animals, while gaining optimal productivity and minimizing inbreeding health risks.
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On-farm study: Teat sealants can go it alone
Results from an on-farm study at Table Rock Farm in Castile, N.Y., show that using a teat sealant alone was just as effective as dry-cow antibiotic therapy at preventing new mastitis infections in low-risk cows.
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