@conference {41136,
	title = {Effects of ergovaline in endophyte-infected tall fescue on ewe fertility},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {59},
	year = {1999},
	month = {Jan},
	pages = {263-265},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Ergovaline is one of the major toxins produced in tall fescue and perennial ryegrass pastures infected with wild type endophyte fungi. Animals grazing these pastures often have reduced productivity and in some cases lower reproductive performance. To date very little is known about the effects of ergovaline on sheep and in particular sheep fertility. A trial was conducted consisting of two groups (n = 20) of synchronised, Finnish landrace x Romney 2-tooth ewes. The groups were grazed on either of two lines of endophyte-infected tall fescue, one producing ergovaline (EV+) and the other ergovaline free (EV-) for two weeks and then mated on the treatments. Ovulation rate, conception rate, and numbers of lambs carried were recorded. Levels of serum prolactin and ergovaline in the pasture were determined. Ergovaline levels in the herbage were 3.30 {\textpm} 0.60 mg/g and 0mg/g in the EV+ and EV- pastures, respectively. Ewes grazing the EV+ treatment had significantly lower (P<0.05) ovulation rates and number of lambs carried to 90 days of pregnancy than the EV- group. Serum prolactin was significantly (P<0.001) reduced in the EV+ group. These results indicate that similar effects could be exhibited in ewes grazing endophyte-infected perennial ryegrass pastures containing ergovaline and further trials are being undertaken to examine this possibility. },
	issn = {1176-5283},
	author = {Kramer R and Keogh R and McDonald MF}
}
@conference {40923,
	title = {Free and conjugated levels of zearalenone in ewes mated on grass dominant pasture or chicory.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {57},
	year = {1997},
	month = {Jan},
	pages = {190},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Zearalenone is an oestrogenic mycotoxin commonly found in New Zealand pastures (di Menna, and et al., 1987). Ingestion of zearalenone by sheep causes reductions in reproductive performance (Smith, and et al.,1990). It is likely that high zearalenone concentrations in pasture around mating will often be sufficient to affect reproductive per-formance of the ewe. Chicory pastures contain very low zearalenone concentrations and therefore have potential as a feed for ewes prior to and during mating. The aim of this trial was to determine the levels of free and conjugated zearalenone in the blood and urine of ewes grazed on either grass-dominant pasture or chicory prior to and during the mating period, and assess any subsequent effects on reproductive performance.},
	issn = {1176-5283},
	author = {Kramer R and Keogh RG and Sprosen JM and McDonald MF}
}
@conference {40862,
	title = {The accumulation and clearance of equol in the blood of ewes grazed on either high or low formononetin red clovers},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {373-377},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Formononetin is the major red clover phytoestrogen responsible for  reproductive dysfunction in sheep. Formononetin is metabolised in the  rumen to equol which is significantly more oestrogenic. This study was  conducted to characterise the accumulation of conjugated and free equol in  the blood of ewes grazed on either high formononetin (cv Pawera, 0.57\% of  dry matter) or low formononetin (cv G27, 0.25\% of dry matter) red clovers  over a 1, 2 or 3 week period and the subsequent clearance of equol after  removal from the red clover. Seventy mixed age ewes were divided into 7 treatment groups (n=10). Each  group grazed either Pawera or G27 red clover for 3, 2 or 1 week or ryegrass  (control group) prior to mating as one flock on ryegrass pasture. All ewes  were regularly blood sampled. Once mated, the ewes were laparoscoped and  returns to service recorded. Conjugated equol concentrations in both Pawera and G27 ewes increased  over the first 2 days to 23.97 },
	issn = {1176-5283},
	author = {Kramer R and Keogh RG and McDonald MF}
}
@conference {40624,
	title = {The effects of restricted suckling and prepartum nutritional level on reproductive performance of primiparous crossbred beef cows.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {307-310},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Reproductive performance was recorded in a total of 21 two-year-old  
Hereford x Friesian and Simmental x Friesian primiparous cows before and  
after restriction of calf suckling.  Cows were allocated one of two pastures  
allowances from day 112 to 212 of gestation so that the high nutrition (HN)  
group gained 0.75 kg/d, and the low nutrition (LN) group gained 0.17 kg/d  
during mid-gestation.  Suckling was suppressed for 7 days by fitting nose plates  
to 46-day-old calves in the restricted suckling (RS) group, whereas the normal  
suckling (NS) group remained as a control.  Dominant follicles in the ovaries  
occurred in all cows by day 32 <I>post partum</I> and underwent a pattern of growth  
and atresia before first ovulation.  Restricted suckling cows had a shorter  
interval from calving to conception than NS cows (76.0 {\textpm} 5 vs 94.1 {\textpm} 6 days,  
P<0.05, whereas genotype and nutritional treatment had no effect on interval to  
conception.  However, the beneficial effect of suckling restriction on days from  
calving to conception only occurred in cows fed the high herbage allowance in  
mid-gestation.  RS calves spent more time grazing during the period of  
attachment of nose plates and differences in behaviour remained over a further  
5 days after nose plates were removed (62.4 {\textpm} 7 vs 38.6 {\textpm} 7 minutes spent  
grazing; P<0.001), but were lighter at weaning (146.7 {\textpm} 3 vs 162.4 {\textpm} 3 kg;  
P<0.01).  Despite the lower calf liveweight at weaning it is concluded that  
manipulation of suckling through fitting nose plates to calves can be used to  
initiate earlier re-breeding in primiparous cows. },
	issn = {1176-5283},
	author = {De Nava Silva GT and Burnham DL and McDonald MF and Morris ST}
}
@conference {40608,
	title = {Hormonal and ovarian responses in Romney ewe hoggets after synchronisation and superovulation treatment.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {239-242},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Twelve, 10-month old ewe hoggets (Av LW 32.5 kg) were placed in  
metabolism crates under controlled lighting (11 h L:13 h D) for a 9 d  
adaptation period and were fed for maintenance.  They were synchronized by  
vaginal insertion of CIDR and treated with gonadotrophins for superovulation.   
Of the 12 hoggets 9 had two or more successive plasma samples with > 0.9  
ng/ml progesterone (P4) indicating they had ovarian activity prior to treatment.   
Mean P4 concentrations prior to treatment (d - 3) were 0.69 {\textpm} 0.18 ng/ml and  
had risen to 1.50 ({\textpm} 0.38), 1.72 ({\textpm}0.35), 1.36 ({\textpm}0.11) and 1.31 ({\textpm}0.10) ng/ml  
for d 0 to d 3 of treatment.  On d 9, 10 and 11, prior to CIDR removal, P4 levels  
were back to base line levels (0.60, 0.46 and 0.57 ({\textpm}0.06) ng/ml respectively).   
The mean number of follicles and corpora lutea were 5.0 ({\textpm}0.95) and 1.8  
({\textpm}0.53), respectively.  Total CL had a negative correlation (r = -0.64, P<0.05)  
with the P4 concentration on the day of CIDR removal.  Six of the 12 ewes had  
an LH peak within 25 hours after CIDR removal.  In addition, those ewes  
treated during late cycle tended (P>0.10) to have a better ovarian response than  
those treated at early or mid cycle.  These results suggest it may be necessary  
to use two CIDR to maintain a sufficiently long period of P4 elevation. In  
addition, the day of the cycle that the CIDR is inserted may be important to  
achieve maximum response from ovulation enhancement treatment in ewe  
hoggets. },
	issn = {1176-5283},
	author = {Campbell JW and McDonald MF and Wickham GA}
}
@conference {40606,
	title = {Reproductive performance of ewes after grazing on G27 red clover, a low formononetin selection in cultivar Pawera.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {231-234},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {One hundred and fifty ewes grazed either on a high oestrogenic red clover  
(Pawera), or a new, low oestrogenic selection of red clover (G27), or control  
pastures before mating.  The treatment groups (n = 25) and grazing lengths  
prior to mating were (1) Pawera, 6 weeks; (2) G27, 6 weeks; (3) G27, 12  
weeks; (4) G27/Ryegrass-white clover (rg-wc), 6 weeks/6weeks; (5) Rg-wc  
(control 1), 6 weeks, and (6) White clover (control 2), 6 weeks.  The ewes were  
mated as one group on rg-wc pasture immediately after the grazing treatments.   
Formononetin concentration was significantly lower in G27 (0.26\%) than in  
Pawera red clover (0.55\%) (P<0.05).  Ovulation rates in ewes after the first  
service were similar for all treatment groups (P<0.05).  The incidence of return  
to service was significantly higher in Pawera ewes (72.7\%) than in any of the  
other groups (P<0.01).  The return rates for the other groups were 33.3\%  
(G27/6weeks), 25.0\% (G27/12 weeks), 4.8\% (G27/rg-wc), 9.5\% (rg-wc) and  
14.3\% (white clover).  Most ewes which were mated at the next two cycles  
became pregnant.  It is concluded that the fertility in the ewes grazing G27 red  
clover was better than that in ewes grazing Pawera red clover, however there  
may have been some impairment in contrast to animals grazing control pasture. },
	issn = {1176-5283},
	author = {McDonald MF and Anwar M and Keogh RG}
}
@conference {40607,
	title = {Residual effect of a four weeks grazing of oestrogenic red clover on reproductive performance of ewes in the following six weeks.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {235-238},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The trial was conducted to study if the temporary infertility in ewes  
induced by oestrogenic clover, would recover accompanied by a concomitant  
increase in ovulation rate and/or litter size following their removal to a  
{\textquoteright}safe{\textquoteright} pasture.  Romney ewes (N - 155) either grazed on Pawera red clover or  
Ryegrass-white clover (control) pasture for four weeks.  Afterwards all ewes  
grazed ryegrass-white clover pasture and were mated in 3 groups either at the  
first, third or sixth week post-treatment.  Mean ovulation rate was significantly  
lower (P<0.05) in the Pawera ewes (1.22 {\textpm} 0.06) than in the controls (1.49 {\textpm}  
0.07) on respective treatments after two weeks of grazing.  Ovulation rates in  
ewes after the 1st, 2nd and 3rd mating cycle were 1.60 {\textpm} 0.12, 1.41 {\textpm} 0.10, 1.27  
{\textpm} 0.09 (red clover), and 1.64 {\textpm} 0.10, 1.67 {\textpm} 0.12, 1.30 {\textpm} 0.90 (control)  
respectively.  Ovulation rate and litter size were similar for the two treatment  
groups after joining in week 1, 3 or 6 post-treatment (P>0.05).  No increase in  
ovulation rate/litter size in Pawera group ewes was observed over and above  
those observed in the control ewes within the six week post-treatment period. },
	issn = {1176-5283},
	author = {Anwar M and Keogh RG and McDonald MF}
}
@conference {40513,
	title = {Oestrus, ovarian activity and embryo survival in ewes grazing high and low oestrogenic red clover},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {53},
	year = {1993},
	month = {Jan},
	pages = {303-305},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Seasonal wool growth pattern, colour variation and associated wool characteristics were measured in a fleece weight selected (HFW) and its control (RC) flocks. Both flocks had a significant (p<0.01) decline in wool growth rate in winter compared with summer. The HFW advantage over RC averaged 19\% and 33\% for ewes, 24\% and 36\% for hoggets, in summer and winter respectively. Yield and fibre diameter patterns were closely associated with wool growth. There were no flock differences in either brightness or yellowness, however both Y and Z tritimulus values were lower in spring and summer while yellowness was higher in summer than other seasons. The results suggest that selection for HFW reduces the relative winter wool growth decline compared with RC.},
	issn = {1176-5283},
	author = {Anwar M and Keogh RG and McDonald MF}
}
@conference {40411,
	title = {Testis size and endocrine parameters in rams as predictors of aseasonality in their daughters},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {195-198},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Overseas data suggest that feeding low energy/high protein diets  can increase carcass weight (and muscle mass) while reducing fat  content. The potential application of this technique to maximise the  returns from overfat lambs in New Zealand was studied. One hundred and  sixty ewe lambs, assessed as being overfat, were allocated on a  liveweight basis to one of seven treatment groups. These comprised an  initial slaughter group, 2 groups offered pasture at approximately  maintenance allowance, 2 groups offered pasture at approximately half  maintenance plus 200g/d of a high protein pellet and 2 groups held on a  bare paddock and offered ad lib straw plus 200g/d of a high  protein pellet. One group from each treatment was slaughtered after 3  weeks and the second after 5 weeks of controlled feeding. Liveweight  change, carcass weight and carcass fatness were monitored.   All groups lost liveweight (88-195 g/d) and estimated carcass weight  (37-89g/d) over the experiment. Corrected to a common carcass weight of  15.25kg decreased GR from 11.6mm for the initial slaughter group to 9.7  and 9.2mm after 3 and 5 weeks, respectively of maintenance pasture  feeding. Corresponding GR{\textquoteright}s of the supplemented groups were 9.3mm (both  groups) after 3 weeks and 8.1 and 7.5mm after 5 weeks for straw and  pasture based diets respectively.   Supplementation with a high protein diet was effective in reducing  carcass GR measurement after 3 weeks of supplementation with a further  decrease after 5 weeks. However, unsupplemented lambs also showed a  decrease in GR after 3 weeks, which was not significantly different from  supplemented lambs. The length of feeding required to effect a change  negated the advantage of decreased GR, although economic returns could  be achieved if the pellets were more readily accepted.  },
	issn = {1176-5283},
	author = {Xu ZZ and McDonald MF and McCutcheon SN and Blair HT}
}
@conference {40299,
	title = {Evaluation of the feasibility of a juvenile MOET scheme in sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {139-142},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {An experiment was conducted at Massey University to measure  potential growth rates of fawns and weight changes of hinds during  summer, a period when growth is usually limited by adequate feed supply  and/or quality.   Thirty two lactating mixed age hinds and their fawns (average age 32.9  days) were blocks on calving date and randomly assigned to one of 4  treatments on the Massey deer unit. The treatments consisted of low  (LC), medium (MC), or high allowance (HC) of pure red clover (6, 12 or  18 kg DM/hd/day) or 12 kg DM/hd/day of ryegrass/white clover pasture  (CON). The corresponding stocking rates were 17.5, 8.7, 5.8 or 7.1  hind/fawn pairs/ha on the LC, MC, HC and CON treatments respectively.  Treatments lasted for 61 days from 29 Dec until weaning on 28 Feb.  Hinds and fawns were weighed bi-weekly.   Weaning weights of the fawns were 51.3, 49.5, 46.7 and 42.8 kg for the  HC, MC, LC and CON treatments respectively. This corresponded to fawn  average daily weight gain of 461, 433, 380 and 333 g/day respectively.  Fawn growth rates and weaning weights were significantly greater on all  clover allowances than on the control (p<0.05). HC and MC treatments  did not differ but were greater than LC (p<0.05).   Hind weight changes followed a similar pattern. Liveweight gains for  the hinds was 53, 58, 5 and -52 g/day for the HC, MC, LC and CON  treatments respectively. All three allowances of red clover increased  weight gain more than CON (p<0.09).  HC and MC treatments did not  differ but both were greater than LC (p<0.05).  },
	issn = {1176-5283},
	author = {Rangel-santos R and McDonald MF and Wickham GA}
}
@conference {40297,
	title = {Out-of-season embryo transfer in five breeds of imported sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {129-132},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Three groups of 2th Romney wethers were given 0, 12g ZnO  fortnight-1 and 12gZnO week-1 respectively for 18 months. Plasma trace  element levels were monitored regularly over this period. At the end of  the trial the animals were slaughtered and various organis, muscle, skin  and wool were removed and analysed for a wide range of elements and for  metallothionein.   Zinc treatment resulted in significantly elevated Zn in plasma, red  blood cells, liver, kidney, intestine and pancreas. Copper  concentrations in liver (272 },
	issn = {1176-5283},
	author = {Greaney KB and McDonald MF and Vivanco HW and Tervit HR}
}
@conference {40284,
	title = {The use of unfrozen semen for in vitro fertilisation of in vitro matured bovine oocytes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {67-72},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Two herds with high (HS) or low (LS) susceptibility to pasture  bloat have been selected divergently at Ruakura since 1972 using field  bloat scores. The present paper continues studies on weights of rumen  digesta, in 92 HS and 81 LS cull cattle experimentally slaughtered from  1985 to 1990. Traits recorded included pre-slaughter weight (PSW), hot  carcass weight (HCW), the fresh weight, dry matter percentage (DM\%) and  dry weight of rumen digesta, weight of full abomasum and omasum, carcass  composition, and weights of heart, liver, kidney and omental fat. In  addition, pre-feeding and post-feeding girths at the last rib were  obtained on 61 2- to 8-year old cows in mid-lactation, as a possible  predictor of variation in rumen contents and in bloat susceptibility.   The LS herd had a 10\% greater PSW than the HS herd (P<0.001), and  adjustments for body size were therefore made below to all traits from  the abattoir except HCW and DM\%. The fresh weights of digesta were  similar in the two herds, but the DM\% of digesta was 17\% greater in LS  than HS cattle (P<0.001). The weight of abomasum and omasum was 15\%  greater in LS than HS cattle (P<0.001), but there was no significant  herd effect on fasting weight loss. Heart and kidney weights were 8  to 9\% greater in LS than HS cattle. Ratios of rib girth to chest girth,  in the absence of bloat, were not significantly different between herds  at 1.172},
	issn = {1176-5283},
	author = {Seaton AD and Catt JW and Rhodes SL and McDonald MF and Welch RAS}
}
@conference {39756,
	title = {Central nervous system injury as a determinant of lamb mortality},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {42},
	year = {1982},
	month = {Jan},
	pages = {15-18},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The aim of the present study was to establish whether ovulation and normal corpus luteum function could be induced in anoestrous ewes by supplementing the endogenous level of luteinizing hormone (LH) and whether cyclical ovarian activity could be induced and maintained in seasonally anoestrous ewes by an unvarying long-term intravenous pulse regime of gonadotrophic releasing hormone (GnRH), 500 ng once per 2 h or 43-80 days. The results demonstrated that a normal ovulation can be induced in anoestrous ewes with LH alone and that the aforementioned GnRH regime was successful in inducing cyclical progesterone activity. These findings suggest that normal breeding activity may be restored to anoestrous ewes when the frequency of hypothalamic GnRH is increased from an apparent endogenous level of secretory episode per 3.5 h to 1 episode per 2 h.},
	issn = {1176-5283},
	author = {Duff XJ and McCutcheon SN and McDonald MF}
}
@conference {39737,
	title = {The starvation-exposure syndrome and neonatal lamb mortality: A review},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {41},
	year = {1981},
	month = {Jan},
	pages = {209-217},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McCutcheon SN and Holmes CW and McDonald MF}
}
@conference {39453,
	title = {Presidential Address: Farmer Motivation and Increased Animal Productivity},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {35},
	year = {1975},
	month = {Jan},
	pages = {1-12},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF}
}
@conference {39419,
	title = {Application of the egg transfer technique in cattle and sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {34},
	year = {1974},
	month = {Jan},
	pages = {56-60},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Tervit HR and Rowson LEA and McDonald MF}
}
@conference {39382,
	title = {Recent advances in reproductive physiology: Implications for control of fertility and fecundity of sheep and cattle},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {33},
	year = {1973},
	month = {Jan},
	pages = {26-39},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF and Cumming IA}
}
@conference {39343,
	title = {Reproductive Differences between Border Leicester x Romney and Romney Two-Tooth Ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {31},
	year = {1971},
	month = {Jan},
	pages = {176-179},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Larsen WA and McDonald MF}
}
@conference {39271,
	title = {Egg transplantation studies in Romney ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {29},
	year = {1969},
	month = {Jan},
	pages = {95-101},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF}
}
@conference {39284,
	title = {An investigation of the relationships between body temperature and implantation and lambing rates in the New Zealand Romney ewe},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {29},
	year = {1969},
	month = {Jan},
	pages = {195-207},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Cockrem FRM and McDonald MF}
}
@conference {39203,
	title = {Variation in ovarian activity of Romney Marsh ewes},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {26},
	year = {1966},
	month = {Jan},
	pages = {98-106},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF and Ch{\textquoteright}ang TS}
}
@conference {39174,
	title = {Studies on the maintenance of the corpus luteum in the ewe},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {24},
	year = {1964},
	month = {Jan},
	pages = {69-76},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF}
}
@conference {39079,
	title = {Cervical Mucus Arborization - Its use in assessing ovarian activity in the ewe},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {18},
	year = {1958},
	month = {Jan},
	pages = {87-96},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {McDonald MF and Raeside JI}
}
