@conference {40731,
	title = {Effect of Monensin capsules on blood metabolites near calving in twin- pregnant and single-pregnant beef cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {265-267},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The aim of this study was to test the hypothesis that Rumensin  capsules administered during late pregnancy would have equally beneficial  effects in single- and twin-pregnant beef cows, on circulating levels of beta-  hydroxy butyrate (BOH), magnesium (Mg) and glucose. Forty cows, half of  which were twin pregnant, were treated with either a single Rumensin  capsule from a mean of 66 d prior to calving, or remained as untreated  controls. Plasma samples were taken on d66, 38, 23, 13 and 5 prior to  calving. Rumensin lowered BOH concentration by the second sampling time  (0.53 vs. 0.765 mmol/l, P<0.01) and maintained this concentration until  calving. Rumensin was without effect on Mg or glucose concentrations.   The effects of Rumensin were additive to those of pregnancy status (twin vs.  single) for all three metabolites thus confirming our hypothesis. Rumensin  may therefore be useful in the late pregnancy management of twin pregnant  cows.  },
	issn = {1176-5283},
	author = {McMillan WH and Oakley AP and Hewitt W}
}
