@conference {78978,
	title = {Prenatal maternal effects on daughter milk production in New Zealand dairy cattle},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {72},
	year = {2012},
	month = {Jan},
	pages = {19-22},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {<p>The impact of a cow{\textquoteright}s live weight and body condition score (BCS) during pregnancy on the milking performance of a resulting daughter was investigated using 4,021 Jersey and 9,329 Holstein Friesian dam-daughter pairs from the Livestock Improvement Corporation Sire Proving Scheme. Although the estimated maternal heritability of each trait in each breed was small (\&lt; 0.02), a l kg increase in dam weight was associated with 1.19 ({\textpm} 0.25) and 0.43 ({\textpm} 0.15) litres increase in daughter milk volume, a 61 ({\textpm}11) and 15 ({\textpm}6) gram increase in fat and a 55 ({\textpm} 8) and 14 ({\textpm}5) gram increase in protein in Jersey and Holstein Friesian cows respectively. A one unit increase in BCS was associated with an increase in volume by 32 ({\textpm} 19) litres in Jerseys and a 14 ({\textpm} 14) litre decrease in Holstein Friesians. Fat increased by 1.91 ({\textpm} 0.84) kg and 0.56 ({\textpm} 0.55) kg and protein increased by 1.64 ({\textpm} 0.63) kg and 0.06 ({\textpm}0.42) kg per unit BCS in Jersey and Holstein Friesian respectively. All daughter responses are per lactation. Although small changes in the daughters milking traits were observed, the lack of significant variation in the maternal heritability indicates that the sample size of the dataset may not be sufficient to detect if prenatal maternal effects truly exist.</p>
},
	issn = {1176-5283},
	author = {Gudex BW and Johnson DL and Singh K}
}
@conference {41565,
	title = {Sire-line differences in lamb losses from starvation exposure},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {65},
	year = {2005},
	month = {Jan},
	pages = {186-190},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {  Sire-line differences in neonatal lamb mortality due to starvation-exposure (diagnosed using basic {\textquoteleft}on farm{\textquoteright}  observations) were observed in five trials (1390 lambs in 15 sire-groups).  After correcting for variations in lamb birth  weight and in the cold challenge experienced by each lamb using logistic regression, sire-line differences in lamb  mortality due to starvation-exposure were detected in flocks where the cold challenge and the number of progeny in  each sire line was sufficient (P < 0.05). Although sire-line differences in lamb mortality due to starvation-exposure were  detected independent of birth weight, the analyses revealed that birth weight is still the largest influence upon lamb  mortality due to cold exposure (P < 0.05). These results confirm that due to the large and contradictory role that birth  weight has in influencing lamb survival, it is extremely important to record and account for it in any attempt to breed  for enhanced lamb survival. The detection of sire-line differences in lamb mortality due to starvation-exposure  independent of birth weight could provide a basis to select for improving lamb survival, thus raising the efficiency of  lamb production.},
	issn = {1176-5283},
	author = {Gudex BW and Hickford JGH and Frampton CM}
}
@conference {41551,
	title = {A survey of the control and financial impact of footrot in the New Zealand Merino industry},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {65},
	year = {2005},
	month = {Jan},
	pages = {117-122},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = { A survey was sent to 869 Merino farmers in New Zealand in August 2001 seeking information about the  prevalence of footrot, treatment and control measures applied, their related costs, and estimated production losses  attributable to the disease. There were 304 respondents to the survey and they farm approximately 43\% of the Merino  sheep in New Zealand. Footrot was reported to be present  in 59\% of the respondents{\textquoteright} flocks with 6.4\% of the sheep  infected by footrot at the time of surveying. Foot bathing, culling of affected sheep and breeding for footrot resistance in  flocks were the preferred control measures. Footrot treatment was calculated to cost $1.67 per Merino sheep per year  with an additional $1.77 per sheep attributed to losses in animal production. Assuming the respondents are  representative of the New Zealand Merino industry, the total cost of footrot to this industry was estimated to be in excess of $11 million annually.},
	issn = {1176-5283},
	author = {Hickford JGH and Davies S and Zhou H and Gudex BW}
}
