494 research outputs found
Subjective Evaluation of Teat Canal Anatomy
Since radiographic techniques have shown that streak canals with larger diameters tend to milk-out faster and are more susceptible to new intramammary infections, a practical visual test was sought to provide easier determination of cows with either extremely narrow (slow milking) or extra wide (susceptible to new infections) streak canals.
A subjective teat classification scheme was developed to describe five different teat-end shapes in 159 Holstein and Brown Swiss cows in the University of Nebraska dairy herd. Approximately one-fourth of the cattle had pointed or round teat ends, one-half had fiat or near flat, and one-fourth were either disk or coneshaped at the distal end.
The correlation coefficient of repeated observations varied between .67 and .84, generally increasing as the time span between observations shortened. About 40g of variation in future classification scores is unaccounted for by past classii~cation scores and may be the result of human error. I conclude, however, that this teat classification scheme has sufficient repeatability as an aid to selection, especially in springer heifers close to freshening
What are the critical histologic features in the diagnosis of ulcerative colitis?
No abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/60974/1/20586_ftp.pd
Sloughing esophagitis: a spectacular histologic and endoscopic disease without a uniform clinical correlation
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134454/1/nyas13112.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134454/2/nyas13112_am.pd
Milk replacers in raising dairy calves
1 online resource (PDF, 2 pages)This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
Portable calf hutch
1 online resource (PDF, 2 pages)This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
Using colostrum to raise dairy calves
1 online resource (PDF, 2 pages)This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
Feed inventory
1 online resource (PDF, 2 pages)This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
Stray Voltage Problems With Dairy Cows
This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
Raising the replacement heifer
1 online resource (PDF, 2 pages)This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
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