@conference {40590,
	title = {Repeatability of seasonal wool growth in Merino Sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {163-166},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Wool samples were clipped from the midside of 27 Merino rams and 33  
unmated Merino ewes born in 1990 at 4 or 8 weekly intervals, depending on  
the season, between July 1991 and January 1994.  Wool growth rat and mean  
fibre diameter were measured. 
 
Both wool growth rate and mean fibre diameter exhibited seasonal growth  
cycles which were synchronous.  The rhythm of the seasonal cycle for each  
characteristic was calculated as:- 
 
Rhythm (\%) = (Max-Min) / ((Max+Min) / 2) x 100 
 
The rhythm for wool growth rate exceeded that for mean fibre diameter while  
the rhythms for both characteristics increased significantly between the first  
and second year but not between the second and third years.  Although wool  
growth rate and mean fibre diameter were strongly correlated between adjacent  
clipping periods, the derived rhythm estimates for both characteristics were  
only weakly correlated between years.  Adjustment of the rhythm estimates for  
liveweight change during the same period significantly improved between  
sheep repeatability of the seasonality estimates. 
 
These data indicate that a significant proportion of the variation in both 
wool growth rate and mean fibre diameter was, after adjustment for liveweight  
change, associated with permanent phenotypic differences among the sheep in  
the rhythm of their seasonal wool growth cycle. },
	issn = {1176-5283},
	author = {Sumner RMW and Clarke JN and Pearson AJ and Speedy PM}
}
@conference {40331,
	title = {Comparative wool production of Texel, Oxford Down, Finnish Landrace and Romney sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {303-308},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Two lines of Perendale sheep selected for an against loose wool  bulk as yearlings at hogget shearing were established at Whatawhata  Research Centre in 1987. Each line consists of approximately 100 mixed  age breeding ewes.   At ewe hogget shearing in 1989 loose wool bulk of the selection lines  differed by 5.2},
	issn = {1176-5283},
	author = {Dobbie JL and Sumner RMW and Clarke JN and Speedy PM}
}
