@conference {41316,
	title = {Genes with major effects on wool traits detected in Finn cross sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {62},
	year = {2002},
	month = {Jan},
	pages = {65-68},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Palmerston North},
	abstract = {Two Finn sires with short wool staple lengths (Finn-S1 91 mm, Finn-S2 107 mm) and two with long staple lengths (Finn-L1 147 mm, Finn-L2 133 mm) were joined with Dorset Down (staple length 37-120 mm) and Romney (staple length 105-166 mm) ewes. Over two years, each ram sired between 83 and 210 progeny. Wool characteristics of progeny were measured at 6 months of age. For all sire groups, distributions of fibre diameter, fibre curvature, fibre medullation and clean fleece weight were not significantly different from single normal distributions. Similarly the distributions of fibre diameter coefficient of variation (FDCV), staple-crimp frequency and staple length for progeny of Finn-S1, Finn-S2 and Finn-L1 were close to unimodal. In contrast, the same three traits for progeny of Finn-L2 fitted two normal distributions. For all three traits, the mean value of one of the distributions of Finn-L2 progeny was similar to the means of the other three sire groups, while the mean of the second distribution was 41\% greater (FDCV), 65\% greater (staple length) or 67\% less (crimp frequency) than that of the first. These results suggest the presence of a gene or genes with major effects on fibre traits. },
	issn = {1176-5283},
	author = {Bray AR and O{\textquoteright}Connell D and Saville DJ}
}
@conference {40588,
	title = {Comparison of methods for measuring fibre diameter of Romney Wool},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {155-158},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Wool from lines of Romney sheep selected on the basis of staple strength  
was measured for mean fibre diameter using both the airflow apparatus and an  
Optical Fibre Diameter Analyser (OFDA).  For wool from "low strength" and  
"control" selection lines, airflow measurements tended to be upwardly biased  
in relation to the OFDA measurements, while for wool from the "high  
strength" line the airflow measurements tended to be downwardly biased.  Two  
sources of bias are known in the literature, medullation and standard deviation.   
In this work the latter seemed to be more important, which may be a  
consequence of the relatively low level of medullation present in these wools  
(8.6\%).  For research work the OFDA is put forward as the preferred  
instrument. },
	issn = {1176-5283},
	author = {Scobie DR and Merrick NC and Saville DJ}
}
@conference {40229,
	title = {Postweaning growth and carcass leanness of lambs that differed in preweaning growth rate},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {287-292},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {An experiment was conducted to investigate the effect of   nutritional status on fibre quality from Angora goats during spring.   Two groups of 28 non-pregnant Angora does were grazed on ryegrass/white   clover pasture at one of two pasture allowances; 1.0 kg and >4kg DM   /head/day (low and high respectively) for twelve weeks during spring.   Groups were balanced for live weight, age, fibre diameter, medullation   and kemp measurements and genetic background. Live weight and fibre   quality (fibre diameter, \% medullaltion and \% kemp) were measured at the   start, after 6 weeks and at the end of the experiment. Mean live weight   of does at the start of the experiment was 22.6 + 0.20 kg and after 12   weeks 30.9 and 25.2; sed 0.63kg for high and low allowance respectively.   Neither mean fibre diameter (35.2 vs 34.1; sed 0.66 microns) nor   medullation (5.38 vs 6.51;s ed 53\%), was affected by pasture allowance   over the experiment (high and low allowance respectively). However,   after 12 weeks, there was a trend for \% kemp measured in the fleece in   does on high pasture allowance to be higher than in does on low   allowance (8.16 vs 6.52; sed 1.04\%). All does were fibre tested again in   March 1989 after grazing at a common allowance, but differences in   fibre characteristics between the previous spring pasture allowances   treatments were small. It appears that doe nutrition during spring can   influence the kemp content in the Angora fleece. The mechanism of this   effect is, however, not known.    },
	issn = {1176-5283},
	author = {Bray AR and Moss RA and Burton RN and Saville DJ}
}
@conference {40187,
	title = {A note on the use of number of permanent incisor teeth for determining age in sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {49},
	year = {1989},
	month = {Jan},
	pages = {303-306},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Lambs in pens were infused duodenally with increasing amounts of   casein or a mixture of four essential amino acids (EAA) to examine   effects upon N retention. Eight Dorset Down x Coopworth lambs (39+/-1.1   kg) each fitted with rumen and duodenal cannulae were housed indoors and   offered freshly cut ryegrass/white clover pasture at a rate of 470g   fresh herbage/kgW0.75(MW)/d. The metabolizable energy intake from   herbage was approximately 870 kJ/kg(MW)/d.     Experimental treatments were duodenal infusions of water (control), 3,   6, 9 and 12g casein/kgMW/d and three levels of a mixture of AA   (methionine, lysine, histidine and arginine) in amounts equivalent to   the supply of these AA in 3, 6 and 9g casein. Treatments were allocated   in an 8 x 8 latin square design.     Duodenal non-ammonia N (NAN) flow indicated that 33\% of forage protein N   intake was lost across the rumen, the mean flow being 1.46gNAN/kgMW/d.   Infusions of casein resulted in significant linear increases (P<0.01) in   N balance up to 6g casein/kgMW/d, the casein N supply at this level   being equal to the N lost across the rumen from the basal forage. The   increase in N balance with infusion of 6g casein was equivalent to an   additional 96\% of the N balance observed with the control treatment. No   further significant change in N balance was observed with casein   infusions greater than 6g/kg/MW/d. A small non-significant response to   infusions of 4 AA was observed indicating that these 4 essential AA were   not solely responsible for the response. These results indicate that   liveweight gain responses can be expected if the losses of protein that   occur in the rumen of lambs grazing temperate pastures can be reduced.    },
	issn = {1176-5283},
	author = {Bray AR and Burton RN and Murray MA and Saville DJ}
}
@conference {40038,
	title = {Perinatal lamb losses on a group of commercial sheep farms in Central Canterbury},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {46},
	year = {1986},
	month = {Jan},
	pages = {263-264},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Voluntary consumption (VC) of wet feed and feed dry matter (DM) was measured indoors with sheep fed 3 ryegrass and 2 tall fescue cultivars at different stages of maturity. Increasing plant maturity, indicated by increasing proportion of stem and flowerhead and of neutral detergent fibre and cellulose contents, was associated with decreasing wet feed intakes. VC of wet feed was about 15\% higher with ryegrass cultivars than tall fescue cultivars. VC of feed DM was positively correlated (r = 0.89) with forage DM content at all stages of forage maturity and over a wide range of forage DM contents (12 - 25\% DM). VC of wet feed was not affected by changes in DM content so that with forage at the same stage of maturity DM intake was increased with an increase in forage DM content. Studies with rumen fistulated sheep showed 90\% of cells in eating boli are ruptured during 1 h incubation in rumen fluid in vitro or in vivo. Also VC of immature and mature perennial ryegrass was not affected when a balloon containing 1.5 l water was placed in the rumen whereas VC of chaffed lucerne hay was significantly depressed. It is concluded that VC of fresh forage is limited by a mechanism regulating intake of wet feed, not feed DM, and that DM content may be an important factor limiting nutrient intake.},
	issn = {1176-5283},
	author = {Gumbrell RC and Saville DJ}
}
