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Abstract

Two data files consisting of 3278 (one herd) and 4393 lactations (three herds) were used to characterize milk production of high-yielding Holstein cows milked three times per day and experiencing extended lactations (up to 1399 days) in a hot environment. Additional objectives were to identify risk ...

Author(s)
Mellado, M.; Flores, J. M.; Santiago, A. de; Veliz, F. G.; Macías-Cruz, U.; Avendaño-Reyes, L.; García, J. E.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2016, 189, pp 50-55
Abstract

The aim of this cross-sectional study was to describe the incidence risk of dystocia, retained placenta (RP), pathological recumbence (down cow), the prevalence of metritis and subclinical ketosis (SCK), and the risk factors for SCK, metritis, and RP in grazing dairy herds in Southern Brazil....

Author(s)
Daros, R. R.; Hötzel, M. J.; Bran, J. A.; LeBlanc, S. J.; Keyserlingk, M. A. G. von
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2017, 145, pp 16-22
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 effects of body condition score (BCS) change and status ante- and postpartum (pp) on health and reproductive performance in 234 German Holstein cows from eight dairy farms were evaluated. BCS was determined from 6 weeks antepartum until 20 weeks pp in 2-week intervals. Three and 5 weeks pp...

Author(s)
Hoedemaker, M.; Prange, D.; Gundelach, Y.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2009, 44, 2, pp 167-173
Abstract

Lactating Holstein cows (n=135) were randomly assigned to one of the two sources of supplemental selenium (Se), sodium selenite (SS) or Se yeast (SY), fed at 0.3 mg/kg diet dry matter from 25 d before calving to 70 d in milk (DIM), in diets not suboptimal in basal Se concentrations. Cows were...

Author(s)
Cerri, R. L. A.; Rutigliano, H. M.; Lima, F. S.; Araújo, D. B.; Santos, J. E. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2009, 71, 7, pp 1127-1137

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