Anyone using them to feed milk to calves? Have some calves in group hutches, which is great from a health point of view but it's the age old problem of the dominant fast drinkers taking more than their share from the others I want to be able to pour the milk, move on to the next lot and come back to check they've supped and release them 5 minutes later. Ringing round for prices but was wondering if anyone on here can recommend anything? Thanks, Flossie