AI Article Synopsis
- Previous research suggests that dairy calves raised in pairs show improved performance and welfare compared to those raised alone.
- In this study, 130 Holstein calves were either housed in pairs or individually, with no significant differences found in weight gain, mortality, or disease treatments between the two groups.
- However, paired calves were quicker to approach food and novel objects, and heavier calves within pairs displayed better growth and less fearfulness compared to lighter calves.*
Article Abstract
Previous research has indicated that preweaned dairy calves reared in pairs compared with individually have improved performance and indicators of animal welfare. One hundred and thirty Holstein female calves completed the trial, with eighty-five being allocated to paired housing and forty-five calves being allocated to individual housing. Daily live weight gain (DLWG), treatments and mortality were recorded throughout the preweaning period. Salivary cortisol, latency to feed and latency to approach a novel object were assessed at batching. There were no significant differences in DLWG, mortality and disease treatments between the average of the pair and the individually housed calves, although the pair-reared calves were quicker to approach the milk feed after batching and interacted more quickly with a novel object. The heaviest born calves within the pair had the highest DLWG from birth to weaning, with a higher percentage of calves approaching the novel object, compared with the lightest born calf within the pair. This study shows that calves within a pair may have significantly different performance and welfare during the preweaning period, with the heavier calf outperforming and displaying less fear and more exploratory behaviour than the lighter calf within a pair.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11171300 | PMC |
| http://dx.doi.org/10.3390/ani14111540 | DOI Listing |
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