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Abstract

The objective of this study was to estimate the effects of pathogen-specific clinical mastitis (CM), occurring in different weekly intervals before or after artificial insemination (AI), on the probability of conception in Holstein cows. Clinical mastitis occurring in weekly intervals from 6 wk...

Author(s)
Hertl, J. A.; Schukken, Y. H.; Welcome, F. L.; Tauer, L. W.; Gröhn, Y. T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 11, pp 6942-6954
AbstractFull Text

In the United States, most dairy farmers who use on-farm dairy management systems voluntarily record health incidences to facilitate effective cattle management. However, there is no national effort to organize or regulate the recording of health data such as enforcing standard or consistent...

Author(s)
Clay, J. S.; Gaddis, K. L. P.; Maltecca, C.
Publisher
International Committee for Animal Recording (ICAR), Roma, Italy
Citation
ICAR Technical Series, 2013, No.17, pp 137-148
Abstract

The polymerase chain reaction (PCR) and a Neospora-specific assay were employed to detect Neospora sp. by amplification of nuclear small-subunit rRNA gene sequences in infected cattle tissues. Tissues from 11 cattle, (6 experimentally and 2 naturally infected cows, 1 naturally infected newborn...

Author(s)
Ho, M. S. Y.; Barr, B. C.; Rowe, J. D.; Anderson, M. L.; Sverlow, K. W.; Packham, A.; Marsh, A. E.; Conrad, P. A.
Citation
Journal of Parasitology, 1997, 83, 3, pp 508-514
Abstract

The primary objective of this study, which started in November 1992, was to determine whether bovine placental lactogen stimulated additional mammary growth as assessed by milk yield from a lactation induced by steroids. 23 pubertal, non-pregnant Holstein heifers were given daily subcutaneous...

Author(s)
Byatt, J. C.; Sorbet, R. H.; Eppard, P. J.; Curran, T. L.; Curran, D. F.; Collier, R. J.
Citation
Journal of Dairy Science, 1997, 80, 3, pp 496-503
Abstract

Data on herd management, disease, and environmental risk factors were collected for 12 months from a stratified random sample of 97 herds (7835 cows) participating in the Michigan National Animal Health Monitoring System. Linear and logistic regression models were developed to assess the...

Author(s)
Kaneene, J. B.; Miller, R.
Citation
Veterinary Research, 1994, 25, 2/3, pp 253-257
Abstract

A double blind randomized clinical trial was performed to assess the effects of oxytocin on the duration of placental retention following dystocia. If the placenta remained attached to the uterus immediately following assisted delivery of a calf, an intramuscular injection of either 3 ml (60 USP...

Author(s)
Hickey, G. J.; White, M. E.; Wickenden, R. P.; Armstrong, D. A.
Citation
Veterinary Record, 1984, 114, 8, pp 189-190

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