@conference {40364,
	title = {A conceptual framework for an expert system to improve drying off decisions on seasonal supply dairy farms - Brief Communication},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {11-12},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Forty Border Leicester (BL) and forty-eight Dorset Down (DD)  ewe hoggets (7.5mo) that had been farmed together were scanned using a  real-time ultrasound machine, at six sites with one muscle depth (B) and  five subcutaneous fat depth measurements (R - tissue depth over fifth  rib, C - backfat over last rib, GR, L - backfat over last lumbar  vertebrae, T - fat over tail) being taken. Comparisons of tissue ratios  (individual fat depth divided by B) were used to characterise  subcutaneous fat distribution. From these ratios it was found that the  DD had 9\%, 10\% and 6\% greater ratios at R, L and T respectively, and 7\%  lower ratios at C and GR. Breed differences at R, GR and T were  significant (P<0.05). It was concluded that true genetic differences in  subcutaneous fat distribution existed between the genotypes studied.  These findings have implications for carcass classification, for  breeding programmes for lean growth, and for comparisons of the fatness  of different genotypes.  },
	issn = {1176-5283},
	author = {Gray DI and Lynch GA and Lockhart JC and Parker WJ and Todd EG and Brookes IM}
}
