Improves Calcium Status

A recently published study into the effect of Cow Start supplementation in older at-risk freshly calved cows shows that cows supplemented with Cow Start maintained higher blood calcium levels compared to un-supplemented Control cows (P<0.05).

In this study 40% of cows were 6th lactation and older at calving and herd production was at 50% above the national herd average, with age and higher production levels recognised as 2 key risk factors for Milk Fever. The results showed that

Cow Start supplemented cows remained in the normo-calcaemic range (>2.0mM/L) at 1 hour, 4 hours and 8 hours post partum, whereas non-supplemented cows dropped into the sub-clinical range (>1.5mM/l and <2.0mM/L) within an hour of calving and remained there.



The only fresh cow supplement that has three peer-reviewed published scientific papers based on Irish Spring calving grass-based production systems

Study 1:    Fahey, A., Lawlor. J., Cow Start Research Meta-analysis, 2022

Study 2:    Lawlor et al., “Effect of Cow Start Bolus Supplementation on Early Lactation Health and Performance Indicators in a Group of Older, At-Risk Dairy Cows”, Animal and Veterinary Sciences, 9(5): 134-140. 2021

Study 3:    Goff JP, Horst RL. Oral Administration of Calcium Salts for Treatment of Hypocalcaemia in Cattle. Journal of Dairy Science 1993; 76(1), 101-108

Study 4:    Rossi et al, “Effects of a supplemental calcareous marine algae bolus on blood calcium concentration in dairy heifers”, Journal of Animal and Feed Sciences, 2022
Study 5:    Spears JW1, Weiss WP. Role of antioxidants and trace elements in health and immunity of transition dairy cows. Vet J. 2008 Apr;176(1):70-6.

Study 6:    J. Lawlor, A. Fahey, E. Neville, A. Stack, and F. Mulligan, “On-farm Safety and Efficacy Trial of Cow Start Calcium Bolus,” Anim. Vet. Sci., vol. 7, no. 6, pp. 121–126, 2019.

Study 7:    Lawlor, J., Fahey, A., Neville, E., Stack, A., and Mulligan, F. “Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation”, Anim Vet Sci., vol. 8,
no. 6, pp. 124-132, 2020.