Lactational persistency is the degree to which early lactation yield persists during the lactation season. Though this is a desired dairy performance trait, it has not been directly selected for in New Zealand dairy populations. In spring-calving pasture-fed cows, peak lactation is reached soon after calving and then declines by about 10% per month (Davis et al., 2000) until the cows are... Continued
Proceedings of the New Zealand Society of Animal Production, Volume 71, Invercargill, 136-138, 2011
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