@conference {40540,
	title = {Studies of alternative selection policies for the New Zealand sport horse},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {53},
	year = {1993},
	month = {Jan},
	pages = {423-426},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The fate of mineral solutions when drenched was assessed in cows  slaughtered after drenching using a dye visible in gut contents. Seven  groups of 10 cows were drenched with water or solutions of magnesium oxide,  magnesium chloride, magnesium sulphate, sodium chloride, sodium  bicarbonate or zinc oxide in Trial 1. Frequency of closure was higher (P<0.05)  for sodium bicarbonate (60\%) than for magnesium oxide or magnesium  chloride (10 to 20\%). Five cows drenched with water alone showed bypass of  the rumen. In Trial 2 four groups of 6 or 7 cows were drenched with water or  solutions containing selenium. Hydromin or copper sulphate. Frequency of  closure was higher (P<0.05) for copper sulphate (70\%) than for water or  selenium (0\%). The results suggest that bypass of the rumen in response to  drenching may contribute to apparent failures of bloat drenches, particularly  when certain minerals are added to the drench.  },
	issn = {1176-5283},
	author = {Rogers CW and Wickham GA}
}
