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Herd monitoring to optimise fertility in the dairy cow: making the most of herd records, metabolic profiling and ultrasonography (research into practice)

Published online by Cambridge University Press:  08 April 2014

R. F. Smith ,
J. Oultram  and
H. Dobson
R. F. Smith*
Affiliation:
School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
J. Oultram
Affiliation:
School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
H. Dobson
Affiliation:
School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
*
†E-mail: robsmith@liv.ac.uk
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Abstract

Fertility performance is intrinsically linked to the quality of the animal environment, overall management and nutrition. This review describes the use of dairy herd records, metabolic profiles and ultrasonographic findings at veterinary fertility examinations to monitor and manage dairy herd fertility. After calving, a cow has to overcome a series of physiological hurdles before establishing a pregnancy. The selection of timely key performance indicators (KPIs) that monitor specific events in the postpartum and service periods is vital to correctly identify problems and their potential causes that hopefully can be rectified. Cumulative sum charts are the timeliest monitors of efficiency of detection of oestrus, insemination outcome and relationship between postpartum events and fertility, with the point of inflection indicating when a change took place. Other KPIs use data from specific cohorts, adding an inherent delay to when change is indicated. Metabolic profiles and milk constituent data allow monitoring of nutritional adequacy and developments to offer new possibilities of on-farm systems for regular measurements of milk constituents (including progesterone) and energy status. Examination of the reproductive tract can be used to indicate individual and herd fertility status but the currently available detail is under used. Recent advances in ultrasonography can improve the diagnosis of reproductive tract pathophysiology still further but the clinical use of these methods in veterinary practice needs further evaluation. Development of new KPIs to exploit research findings are needed to ensure this knowledge is used to improve on-farm performance.

Keywords

cattlefertility recordsmetabolicultrasound
Type
Full Paper
Information
animal , Volume 8 , Supplement s1: New Science ‐ New Practices International Cow Fertility Conference 18‐21 May 2014, Westport, Ireland , May 2014 , pp. 185 - 198
Copyright
© The Animal Consortium 2014 

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