E Janzen. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » AnimalsCanadaCattle/physiologyFemaleMaleReproductionSeasonsTime Factors
Year: 1978 PMID: 743686 PMCID: PMC1789442
Source DB: PubMed Journal: Can Vet J ISSN: 0008-5286 Impact factor: 1.008