Rearing Broiler Sexes Separate Versus Combined
نویسندگان
چکیده
منابع مشابه
Floral dimorphism in plant populations with combined versus separate sexes.
BACKGROUND AND AIMS Dimorphism among floral traits can evolve through variation in selection intensity between female and male performance, especially when sex functions are separated between flowers on a plant (monoecy), or between individuals (dioecy). In animal-pollinated species, male floral traits are predicted to be larger because competition for pollinators should favour larger displays....
متن کاملSeparate Versus Combined Analysis of Phylogenetic Evidence
There has been much discussion in the recent systematic literature over whether different data sets bearing on phylogenetic relationships should be analyzed separately or combined and analyzed simultaneously. We review arguments in favor of each of these views. Assuming that the goal is to uncover the true phylogeny of the entities in question, arguments for combining data based on the notions ...
متن کاملPART OF A SPECIAL ISSUE ON SEXUAL PLANT REPRODUCTION Floral dimorphism in plant populations with combined versus separate sexes
†Background and Aims Dimorphism among floral traits can evolve through variation in selection intensity between female and male performance, especially when sex functions are separated between flowers on a plant (monoecy), or between individuals (dioecy). In animal-pollinated species, male floral traits are predicted to be larger because competition for pollinators should favour larger displays...
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Inbreeding depression is a critical factor countering the evolution of inbreeding and thus potentially shaping the evolution of plant sexual systems. Current theory predicts that inbreeding depression could have important evolutionary consequences, even in haploid-dominant organisms. To date, no data have been reported on inbreeding depression in moss species. Here, we present data on the magni...
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Clonality is often implicated in models of the evolution of dioecy, but few studies have explicitly compared clonal structure between plant sexual systems, or between the sexes in dioecious populations. Here, we exploit the occurrence of monoecy and dioecy in clonal Sagittaria latifola (Alismataceae) to evaluate two main hypotheses: (i) clone sizes are smaller in monoecious than dioecious popul...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1973
ISSN: 0032-5791
DOI: 10.3382/ps.0520016