@conference {40535,
	title = {Relationships between objective and subjective measurements of carcass muscularity},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {53},
	year = {1993},
	month = {Jan},
	pages = {397-402},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {No abstract supplied  },
	issn = {1176-5283},
	author = {Abdullah AY and Purchas RW and Davies AS and Kirton AH}
}
@conference {40370,
	title = {The value of ultrasound in assessing the leg muscling of lambs},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {33-36},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Faecal worm egg counts (FEC) were recorded on 779 lamb progeny  in a performance recorded flock in Northland during summer-autumn 1990  to determine breed and sire variations. Progeny were ram lambs born in  1989 representing 4 Perendale, 4 Romney and 7 cross-bred sires.   The study protocol was that the lambs remained undrenched until the mean  FEC of representative {\textquoteright}monitors{\textquoteright} reached 1000-1500 eggs/g. Then all  stock were faecal sampled, drenched and the protocol repeated. Full  samplings occurred on 12 February (FEC1) and 12 March (FEC2). All  animals grazed as one mob throughout the programme.   There were significant variations within and between breeds in FEC.  Perendale and Crossbred lambs had significantly lower faecal egg outputs  than Romneys on both occasions (FEC1=3560, 4073, 4757; FEC2=2535, 3242,  3737, respectively).   One possible explanation of the results is that Perendales selectively  avoid parasite contamination on pasture through differences in grazing  behaviour. Alternatively, they may have consumed less pasture and  larvae because they were lighter. If these are not the cases these data  suggest that Perendales in this flock may be more resistant to internal  parasites.  },
	issn = {1176-5283},
	author = {Ward BG and Purchas RW and Abdullah AY}
}
@conference {40204,
	title = {Plasma urea dilution patterns in Southdown ram lambs from high and low backfat selection lines},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {105-108},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Exogenous progesterone and oestradiol benzoate (OB) were used in   long-term ovariectomised red deer to investigate a simple technique for   induction of oestrus. Up to 12 days of intravaginal progesterone   (CIDR-S; replaced at 4 day intervals) was followed 24h later by a single   intramuscular injection of OB. Continual observations (for behavioural   oestrus) and blood sampling every 6h (for plasma LH concentrations) were   conducted over the subsequent 48h period.     In Experiment 1 (December), 12 days of progesterone preceded 0, 1.0, 2.5   or 5.0 mg OB. Onset of oestrus (28-44h post-OB; mean 33h) was similar   in all treated hinds. Plasma LH concentrations fell (P<0.01) after OB   administration, followed 30 to 36h later by a dramatic increase (to 6.4   ng/ml) indicative of pre-ovulatory-like LH surge. Hinds receiving no OB   exhibited 4\% of all mounting interactions but showed no increases in LH   concentration.     Experiment 2 (January) consisted of no treatments or 12 days or   progesterone followed by 0, 0.1 or 1 mg OB resulted in suppression of   plasma LH after OB. However, all other plasma LH and behaviour   responses elicited were anomalous.     In Experiment 3 (February), 0,4, 8, or 12 days of progesterone   pretreatment were terminated 24 hours prior to administration of 1 mg   OB. Plasma progesterone concentrations were elevated above 1 ng/ml   during all progesterone treatments. Onset of oestrus was observed later   (P<0.5) after 4 days of progesterone treatment (33.4h; sem 1.2h). Tonic   plasma LH secretion was elevated (P<0.01) from Experiment 1 through to   Experiment 3 but the plasma LH suppression in response to OB was similar   in all 3 experiments. These results indicate that oestrus can be   induced in the red deer hind by at least four days of intravaginal   progesterone treatment followed by i.m. oestradiol benzoate   administration 24h after progesterone removal.    },
	issn = {1176-5283},
	author = {Abdullah AY and Purchas RW and McCutcheon SN and Van Dinther PC}
}
