USA Made · FDA Approved
The future of milk production is lighter.
Posilac® 500 mg helps your herd produce more from less — better margins for you, less methane for the planet.

≈9.9lb/day
more milk per cow vs. control
First-lactation cows vs. untreated control, averaged over a 238-day treatment period. Multiparous cows produced 12.47 lb more per day. Across the study herd (35% first-lactation, 65% multiparous) that adds up to 2,755 lb more milk per cow over the treatment period, calculated from the published trial averages.¹
−7.3%methane
emissions per unit of milk produced
Modelled reduction per unit of milk produced, alongside 8.1% less total feed and 6.8% less manure.²
17doses
one dose every 14 days, one simple cycle
References
- 1. De Morais, J.P.G. et al. 2017. Lactation performance of Holstein cows treated with 2 formulations of recombinant bovine somatotropin in a large commercial dairy herd in Brazil. Journal of Dairy Science 100(7):5945-5956.
- 2. Adapted from Capper, J.L. et al. 2008. The environmental impact of recombinant bovine somatotropin (rbST) use in dairy production. Proceedings of the National Academy of Sciences 105(28):9668-9673.
- 3. Bauman, D.E. et al. 1999. Production Responses to Bovine Somatotropin in Northeast Dairy Herds. Journal of Dairy Science 82:2564-2573.
- 4. St-Pierre, N.R. et al. 2014. Meta-analysis of the effects of sometribove zinc suspension on the production and health of lactating dairy cows. JAVMA 245:550-564.
One product. Two packs.
Add to cart, ship to the farm.
Product details 

Buying for the whole operation?
Ask about volume pricing on the 100-count — usually back within a day.




