@conference {40947,
	title = {The measurement of ovine follicle stimulating hormone (FSH) bioactivity utilizing a recombinant human FSH receptor bioassay.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {57},
	year = {1997},
	month = {Jan},
	pages = {243-245},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Recently a bioassay for human FSH has been described based on FSH stimulation of cyclic AMP production by a Chinese hamster ovary (CHO/FSH-R) cell line stably expressing the human FSH receptor (FSH-R cells). In this study, the viability of this bioassay for measuring ovine FSH was examined. Freshly thawed FSH-R cells were bulked up in culture, and aliquots of 250,000 cells/well dispensed into 48 well culture dishes and incubated overnight at 37{\textdegree}C. The assay culture media was then replaced with 0.25 ml fresh media (α-MEM + 0.1\% BSA + 0.25 mM 3-isobutyl-1-methyl-xanthine) containing varying doses of FSH preparations, and the cells incubated for 4 h at 37{\textdegree}C. The assay culture media was then removed and stored frozen at -20{\textdegree}C until assayed for cyclic AMP by radio immunoassay.},
	issn = {1176-5283},
	author = {Young W and Henderson K and Hudson N and Moore L and Albanese C}
}
@conference {40033,
	title = {Ovarian follicular development in Booroola ewe lambs and in highly fecund Booroola ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {46},
	year = {1986},
	month = {Jan},
	pages = {241-244},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Two hundred and thirty 5-year-old Romney ewes were synchronised with progestagen intravaginal sponges and injected with dexamethasone 142 or 143 days after the median mating day of the first and second cycles of oestrus. Seventy-one \% of the lambs were born 30 to 50 h after injection. The ewes were offered 2 pasture allowances for the last 6 weeks of pregnancy (approximately 6 and 1 kg DM/ewe/d). Lambs were vigour scored (1 to 10) and probed for rectal temperature and ewe lambs were cross-fostered as soon as possible after birth in order to obtain a 2 4 factorial design incorporating birth type (single and twin) rearing types (single and twin), pre-natal nutrition of dam (high and low allowance), and pre-natal nutrition of foster dam (high and low allowance). Lambs born from high allowance ewes had higher rectal temperatures at birth than those born from low allowance ewes, and female lambs had higher rectal temperatures than male lambs. Single-born lambs scored higher on vigour than those born as multiples. Increasing vigour was associated with increasing birth weight for all lambs, but increasing temperature was associated with increasing birth weight only for male lambs. There were no effects of pre-natal nutrition on lamb growth either through the dam or foster dam. The effect of birth type on lamb live weight was significant to 9 weeks of age whereas the effect of rearing type was significant to 33 weeks. There were no significant birth type x rearing type interactions at any age.},
	issn = {1176-5283},
	author = {McNatty KP and Lun S and Heath D and Hudson N and McDiarmid J and Ball K and Smith P and Henderson KM}
}
@conference {40013,
	title = {Ram-induced inhibition of plasma follicle-stimulating hormone (FSH) concentrations in anoestrous Romney ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {46},
	year = {1986},
	month = {Jan},
	pages = {153-156},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {A major constraint on the profitability of using {\textquoteright}Fecundin(r){\textquoteright} is the cost of treatment and one approach to this problem is to reduce the dose rate. In 1984 Coopworth ewes were allocated to 3 groups. One group was untreated (control) while the other 2 groups were injected twice with Fecundin. One treated group received a full dose (2ml) each time while the other group received a half dose (1ml) on both occasions. In 1985 the same ewes were roboosted with Fecundin(r). Control ewes remained untreated while ewes from each group in 1984 were boosted with either a half or full dose. In the first year, both immunised groups showed a substantial increase in ovulation rate over controls (2.45 full, 2.20 half and 1.86 control). The higher ovulation rate of full dose compared to half dose ewes did not result in more lambs born or weaned (lambs born/ewes joined were 1.68 full, 1.65 half and 1.35 control). In 1985 all 4 treatment groups had a higher ovulation rate (2.43) than the control (2.03 and there were no difference between immunisation treatments. A similar patter was seen in lambs born. Thus the cost of treatment can be halved by using a 1 ml dose of Fecundin(r) without a drop in the additional performance obtained.},
	issn = {1176-5283},
	author = {McNatty KP and Hudson N and Gibb M and Ball K and Morrison L}
}
@conference {39941,
	title = {Influence of follicle stimulating hormone on ovarian follicular development and ovulation rate in Romney ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {45},
	year = {1985},
	month = {Jan},
	pages = {51-54},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Levels of cell mediated immunity (CJMI) were monitored in pregnant and non-pregnant control ewes to assess the impact of pregnancy on CMI in sheep. Pregnant plasma caused a significant depression in lymphocyte culture reactivity with mitogens (PHA, Con A and PWM) or with antigen (BSA) in primed animals. No defect in transformation was evident in pregnant lymphocytes per se, which gave normal transformation when cultured in control plasma. Delayed- type hypersensitivity (DTH) responses to specific antigens were significantly lower during pregnancy in response to 1},
	issn = {1176-5283},
	author = {Hudson N and McNatty KP and Ball K and Gibb M and Heath D and Lun S and Kieboom L and Henderson KM}
}
@conference {39872,
	title = {Effect of season on ovarian and pituitary activity in cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {44},
	year = {1984},
	month = {Jan},
	pages = {19-20},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {One hundred and four ewe lambs born in 1980 to either ewes that had been immunised against steroid hormones or untreated control ewes were retained for study of their subsequent growth and reproductive performance. There was no significant effect of dam immunisation on growth rate or reproductive performance as hoggets, 2-tooths or 4- tooths. Dam breed (Coopworth or Romney) was the major factor influencing reproductive performance. Mean lamb birth weight was 3.7 kg, weaning weight 18.7 kg, hogget mating weight 40.0 kg, 2-tooth mating weight 54.4 kg and 4-tooth mating weight 60.4 kg. At 9 months of age 83\% had exhibited oestrus and their ovulation rate was 1.08, as 2- tooths, 96\% mated in the first cycle with an ovulation rate of 1.68 and a conception rate of 80\% to first service. They had a lamb drop of 1.49 lambs born/ewe joined and weaned 1.35 lambs/ewe joined. The respective figures as 4-tooths were 98\%, 1.8, 85\%, 1.43 and 1.34. These data indicate that immunisation of ewes against steroid hormones has no adverse effects on the performance of their progeny.},
	issn = {1176-5283},
	author = {McNatty KP and Heath D and Lun S and Henderson KM and Hudson N and Gibb M and McDiarmid J and Montgomery GW and Thurley DC}
}
@conference {39876,
	title = {Ovarian activity in the Booroola x Romney ewe possessing a major gene influencing fecundity},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {44},
	year = {1984},
	month = {Jan},
	pages = {33-36},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Prices paid at 6 sales for Perendale fleece wool assessed as having loose wool bulk values of 25 cm},
	issn = {1176-5283},
	author = {McNatty KP and Henderson KM and Lun S and Heath D and Kieboom L and Hudson N and Fannin J and Ball K and Smith P}
}
@conference {39875,
	title = {Ovarian inhibin: a hormone with potential to increase ovulation rate in sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {44},
	year = {1984},
	month = {Jan},
	pages = {29-32},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The Booroola F gene gives sheep breeders a unique method of rapidly increasing the prolificacy of their flocks. Research data indicate that on average, every ewe carrying the F gene will produce about 1 extra lamb at each lambing. Breed type need not be changed from those currently favoured as the F gene can be transmitted to any breed, firstly by a series of controlled backcrosses and then by identifying carrier sheep of the desired breed type. Management systems to cope with large increases in lamb drop need to be developed along with breeding programmes to predict more accurately the genotype of individual sheep. These management systems and breeding programmes must also incorporate a strong emphasis on the ability to rear triplet born lambs to a marketable size.},
	issn = {1176-5283},
	author = {Henderson KM and Franchimont P and Lecomte-Yerna MJ and Charlet-Renard CH and Hudson N and Ball K and McNatty KP}
}
@conference {39758,
	title = {Induction of cyclical ovarian activity in seasonally anoestrous Romney ewes: studies with exogenous GnRH or LH},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {42},
	year = {1982},
	month = {Jan},
	pages = {21-24},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Groups of high and low fecundity Booroola x Romney (B x R) and Romney (R) two-tooth ewes grazed a pasture containing 85\% {\textquoteright}Grasslands Pawera{\textquoteright} red clover for 10 days; similar groups of ewes grazed ryegrass- white clover control pastures. Oestrus and ovulation were synchronised in all ewes to occur during the last 5 days of grazing. Pawera leaf material contained 0.7\% formononetin and the pasture was highly oestrogenic to sheep (>40 },
	issn = {1176-5283},
	author = {McNatty KP and Ball K and Hudson N and Gibb M and Thurley DC}
}
