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Australian Veterinary Journal
Article . 2020 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
UQ eSpace
Article . 2020
Data sources: UQ eSpace
UQ eSpace
Article . 2020
Data sources: UQ eSpace
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Linear body measurements and productivity of subtropicalHolstein–Friesiandairy calves

Authors: A Hewitt; TWJ Olchowy; AS James; B Fraser; S Ranjbar; M Soust; JI Alawneh;

Linear body measurements and productivity of subtropicalHolstein–Friesiandairy calves

Abstract

ObjectiveThe study aimed to describe growth parameters and to quantify the association between linear body measurements as predictors of liveweight (LW) of Holstein–Friesian (HF), and HF crossbred dairy calves in Queensland. A secondary objective was to quantify the effect of disease events on LW change.Study DesignLongitudinal study.MethodsFortnightly LW, hip height (HH), hip width (HW) and heart girth (HG) measurements were recorded from 16 male and 28 female HF calves from birth until weaning. The association between linear body measurement and the effect of a disease event on LW change were explored using linear mixed‐effects modelling with random intercepts and random slopes.ResultsHG was the best body measure used individually as a predictor of calf LW (R2 = 82%; P < 0.001), while the combined use of HG, HW and HH was the most accurate predictor of calf LW between birth and weaning (R2 = 90%; P < 0.001). HW, average feed intake and total feed intake were significantly affected by disease events (P < 0.05). On average, total average LW loss associated with a single pneumonia event was estimated at 14.6 kg (95% CI = 10.5 to 18.7 kg; P < 0.05).ConclusionsCalves of this study performed at a level consistent with the previously published reports. Growth performance was significantly compromised by pneumonia. HW was found to be the least predictive individual measure, and the combined use of HH, HW and HG had the most accurate prediction of calf liveweight from birth to weaning.

Country
Australia
Keywords

Male, General Veterinary, Body Weight, Cattle Diseases, General Medicine, Weaning, Animal Feed, 630, Diet, 3400 Veterinary, Animals, Cattle, Female, Longitudinal Studies, Queensland

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Average
bronze