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Effect of pre- and postpartum pasture feeding intakes on postpartum anoestrous intervals in dairy cows



Effect of pre- and postpartum pasture feeding intakes on postpartum anoestrous intervals in dairy cows



Proceedings of the New Zealand Society of Animal Production 65: 221-224



Extended postpartum anoestrous intervals (PPAI) are the predominant source of infertility on New Zealand dairy farms. A 2x2 factorial design was used to investigate pre- and postpartum pasture feeding levels on PPAI. Sixty-eight multiparous Holstein-Friesian dairy cows due to calve in the first three weeks of the calving period were randomly assigned to a high (11.9 kg DM/cow/day) or low (4.8 kg DM/cow/day) pasture feeding intake for 29+or-7.7 days pre partum.

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Accession: 004125783

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