Better to use Brinicombes Goat Feed Balancer.....................it contains much higher levels of essential minerals & vitamins than Caprivite.
Goats actually require as much copper as a dairy cow............they get treated like sheep because of size but that is the only resemblance. A goats metabolic rate is practically 3 times faster than a cow !!!!
Goat feed generally only contains sheep minerals as manufacturers play safe because most goatkeeper/smallholders have sheep. You are far better to feed cattle Dairy compounds as these are designed for lactating animals..............and are much cheaper because of the volume produced.
I have made a particular study of this issue of feeding................1. to keep down costs, & 2. the ensure our goats get the best available feedstuffs to suit their job. Feed manufacturers are in business to make money, so repackaging with tweaks to the feed and hey presto, you can charge more. OK so I am cynical but in a large number of cases this is true. Because goats are in the minority for the feed industry, it is not cost effective to stop the mills producing huge volumes to do a very small run of goat feed....................think about it.
Allen & Page produce specific goat mixes..............which appear to almost identical to their Calf mix, which is cheaper.