The effect of crossing of Corriedale type ewes with prolific rams on the wool productivity of their progeny

Niznikowski, R.; Janikowski, W.; Rant, W.

Journal of Animal and Feed Sciences 1(2): 81-88


ISSN/ISBN: 1230-1388
Accession: 010003394

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The experiment was carried out from 1982 to 1989 on 318 Corriedale ewes on their F-1 crosses with prolific rams i.e. East Friesian, Finnish and Polish "Wrzosowka". The following traits were analyzed: wool production and staple length at the age of 12 months, wool production at the age of 2, 3, 4, and 5 years, and fleece quality of two-tootched ewes. The progeny of Corriedale type ewes crossed with prolific rams had decreased (P ltoreq 0.01) wool production, e. g. the lowest fleece weight and increased staple, length and wool thickness was found in the progeny descended from the Polish "Wrzosowka" rams. Crossing decreased (P ltoreq 0.01) the fleece quality (according to the appraisal method) in the progeny of Finnish and Polish "Wrzosowka" rams. However, the fleeces of the progeny of Friesian rams were better (P ltoreq 0.01) than those of the control group.