Other Genetics and Genomics Commons^™

Cattle Breeds For Beef Production In W.A, J L. Anderson

Journal of the Department of Agriculture, Western Australia, Series 4

BREEDS develop because people select animals for characters which are useful to them in their own environment.

Thirteenth Random Sample Laying Test : 1969-70, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

POULTRY RESEARCH STATION, WEMBLEY FIFTH PROGRESSIVE REPORT TO 30th AUGUST, 1970

Causes Of Low Lambing Percentages, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

West Australian Merino flocks average about 70 per cent, lambs marked each year. Reasons for this low percentage are that as many as 30 per cent, of ewes do not lamb, twinning rates are low and from 10 to 25 per cent, of lambs born die.

Among the research projects by the Department of Agriculture's Sheep and Wool Branch have been a number directed at the various stages of reproduction in the ewe. These have given some important leads on the causes of low lambing percentages.

If you have marked less than 60 per cent, lambs in the past several …

Twinning Increases Production, K P. Croker

Journal of the Department of Agriculture, Western Australia, Series 4

Many breeders claim that twinning causes too many losses among Merino lambs and does not favour breeding for twin lamb production.

But recent experiments have proved otherwise and agricultural scientists now agree that . . .

TWINNING INCREASES PRODUCTION

THE low marking percentages regularly recorded for Merino flocks suggest that the Merino is a relatively infertile breed.

Certainly, lambing percentages are low when compared with those of most British breeds of sheep.

How To Identify Twin-Born Lambs, G T. Halpin, P. Nelson

Journal of the Department of Agriculture, Western Australia, Series 4

IN the past few years it has become widely accepted that the ability to produce twin or multiple lambs is a heritable characteristic.

This means that breeding from sheep born as twins should give more multiple births and higher lambing percentages than breeding from sheep born as single lambs.

Lot Feeding Of Beef Cattle. 4. Cattle For Feed Lots, W J O Wilkie

Journal of the Department of Agriculture, Western Australia, Series 4

BREED, age, condition, health, temperament and sex are all important in feed lot cattle.

Identicial Twins : A Valuable Aid To Animal Husbandry Research, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

A T a recent field day at Wokalup Research Station a set of identical twins was shown as being the start of a project to build up a herd or number of such, for research and extension work.

Famous Sheep Breeds. 4. The Border Leicester, J A. Mallett

Journal of the Department of Agriculture, Western Australia, Series 4

ALTHOUGH the Society of Border Leicester Sheep Breeders was formed only 62 years ago and the first volume of the Border Leicester Flock Book appeared in 1899, surprisingly little authentic information is available concerning the origin of the breed.