@conference {40371,
	title = {Factors affecting repeatability of tissue depth determination by real-time ultrasound in sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {37-40},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The behaviour of 7476 calves transported on double- or triple-  decker trucks was studied during unloading. Recorded behaviour was  classified into 2 categories (upright or not upright) and the  frequencies of these at three ramp slopes (4.2, 12 and 18.8 ) are  presented. The proportions of animals upright on the 3 slopes (low,  medium and high) were 93, 74 and 20\%. On average, 100 calves were  unloaded in 5.3, 7.7 and 7.1 min down the low, medium and high slopes,  respectively. Improvements in welfare of bobby calves and probably  reduced bruising would result if ramp slopes were kept at less than  about 12 so that most animals could remain upright.  },
	issn = {1176-5283},
	author = {Young MJ and Deaker JM and Logan CM}
}
