. Canadian journal of agricultural science. Agricultural Institute of Canada; Agriculture. January, 1922. SCIENTIFIC AGRICULTURE. 155 with the increase of this family, prove to be of considerable economic value. Some sixteen- other Leghorn hens have been retained because they have given cer- tain outstanding daughters as well as medi- ocre ones, and seemed deserving of a more complete progeny test. Testing Males. Males Nos. 2671 and 2785 are closely re- lated Oregon White Leghorns. They illus- trate the variable prepotency of males of similar blood lines as shown by pedigree. No. 2671 produced
. Canadian journal of agricultural science. Agricultural Institute of Canada; Agriculture. January, 1922. SCIENTIFIC AGRICULTURE. 155 with the increase of this family, prove to be of considerable economic value. Some sixteen- other Leghorn hens have been retained because they have given cer- tain outstanding daughters as well as medi- ocre ones, and seemed deserving of a more complete progeny test. Testing Males. Males Nos. 2671 and 2785 are closely re- lated Oregon White Leghorns. They illus- trate the variable prepotency of males of similar blood lines as shown by pedigree. No. 2671 produced 84 daughters that av- eraged eggs in winter production, a record scarcely equal to that of the dams. No. 2785 gave 90 daughters that averaged eggs in winter production, a record that was 25 per cent greater than the pro- duction of their mothers. Male No. A527. a son of 2785, is outstanding. When mated with hen No. 56, as referred to above, he produced five daughtters that averaged 234 eggs, and when mated to three other hens his pullets averaged 230 eggs. Am- ongst the latter was one daughter from hen "No. 65 that has laid 312 eggs up to Nov. 1st last. Practically the only defect in the progeny of this male is that their eggs do not all weigh up to the two-ounce average. T^e compensating feature is that hen TSTo. 501, the 312-egg performer, lays ec^cyfi that average well over the two-ounce standard. She will be mated back to her sire, since the old lien Xo. 65 is dead. A227. a full brother of A527 from 0. A. C. 153. also has given a large number of good daughters that have laid from 200 to 283 eggs. At the same time, when mated with poor hens tjie progeny has not done so well. This bird does not seem to be as prepotent as his brother, A527. Ordinary producing ability and prepotency seems to depend upon individual matings. It does not seem to be safe to emphasize unduly either males or females in the genetic cal- culation. White Wyandottes. The foundation stock
Size: 1450px × 1723px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcont, booksponsoruniversityoftoronto, booksubjectagriculture
