00000nam 2200000za 4500 9.824586 CaOODSP 20250303104652 cr ||||||||||| 160922s1937 oncao|| o f000 0 eng d CaOODSP eng n-cn--- A12-8/42-1937E-PDF Bulldog-jaw and parrot-mouth defects of sheep [electronic resource] / prepared by George W. Muir ... [et al.]. Ottawa : Department of Agriculture, 1937. 7 p. : ill. Farmers' bulletin ; no. 42 Cover title. "Issued August 1937. First printing." Issued also in French under title: Les déformations de la bouche chez les moutons. Historical publication digitized by Agriculture and Agri-Food Canada. "The defects known as " bulldog jaw" and "parrot mouth" appear occasionally as hereditary abnormalties in many breeds of live stock. ... It is the purpose of this publication to draw the attention of sheep breeders to these undesirable traits, pointing out the nature of the defects, the handicap to sheep possessing them, their occurrence and mode of inheritance, and to describe selection methods for ridding the flock of these defects."--Introd., p. 3-4. gccst Sheep gccst Animal husbandry gccst Genetics Muir, George W. Canada. Department of Agriculture. Les déformations de la bouche chez les moutons (CaOODSP)9.824591 Farmers' bulletin (Canada. Department of Agriculture : 1936) 42 (CaOODSP)9.824039 PDF 617 KB https://publications.gc.ca/collections/collection_2016/aac-aafc/agrhist/A12-8-42-1937-eng.pdf Publication 588