Results 211 to 220 of about 345,796 (246)

Breeding (2): Ecology of Breeding

1996
Once breeding activity has been initiated under the influence of the various environmental stimuli described in the previous chapter, courtship, nestbuilding (where relevant) and subsequent parental behaviour follow in sequence. These activities may involve finding appropriate nesting materials (for example, green grass in the case of weavers Ploceus ...
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II. Breeds and breeding practices

New Zealand Journal of Experimental Agriculture, 1979
Abstract A national questionnaire of farms with pigs, carried out in April 1977, was used as a source of data on the extent of use of purebred v. homebred stock in commercial herds, the fate and average age of performance-tested boars, the extent of crossbreeding, and the identity of breeds and crossbred types of stock.
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Breeding without Breeding

Tree Genetics & Genomes, 2012
We developed a deterministic model to optimize DNA fingerprinting effort in the presence of gene flow during the application of Breeding without Breeding. The method considers trait’s heritability, level of gene flow, selection differential, and the proportion of progeny test subjected to fingerprinting (truncation).
Yousry A. El-Kassaby, Milan Lstibůrek, Jaroslav Klápště, Jaroslav Klápště, Jaroslav Kobliha   +4 more
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Breeding (1): Timing of Breeding

1996
With regard to the timing of breeding in birds, “by far the most important ultimate factor for nearly all species of birds is the availability of an adequate food supply…. Each species has therefore evolved the timing of its breeding so that it coincides with a maximum availability of its species-specific food” (Immelmann 1971).
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Breeding Methods and Breeding Research

2002
In a broad sense, the term “ornamental plants” covers all kinds of plants used for one ornamental purpose or another in homes, gardens and parks. Ornamental plant breeding, therefore, covers the breeding of all ornamental plants in the broad sense. On the other hand, floriculture includes mostly herbaceous ornamental plant species, i.e., bedding plants,
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To breed, or not to breed? Predation risk induces breeding suppression in common voles

Oecologia, 2012
Breeding suppression hypothesis (BSH) predicts that, in several vole species, females will suppress breeding in response to high risk of mustelid predation; compared to breeding females, suppressing females would gain higher chances of survival. Seminal evidence for BSH was obtained in the laboratory, but attempts to replicate breeding suppression ...
Mateusz Jochym, Stefan Halle
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Selection and breeding

Journal of Statistical Planning and Inference, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. Tuchscherer, G. Herrendörfer
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Breeding for speed

Science, 2014
I read with interest the In Depth story “Racing for disaster?” (A. Gibbons, 13 June, p. [1213][1]) on breeding thoroughbreds for speed, and the concerns about inbreeding and the resulting shrinkage of the gene pool. As Gibbons points out, such selection for speed generally involves putting 3-year-old stallions out to stud after winning one or more high-
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Olive Breeding

2008
The olive (Olea europaea L.) is, at the same time, one of the most ancient domesticated fruit trees and the most extensively cultivated fruit crop in the world, covering an area of about 7.5 million hectares. The recent diffusion of olive outside its traditional area of cultivation, the Mediterranean basin, together with a continu- ous trend in the ...
Andrea Fabbri, Maurizio Lambardi, Yelda OzdenTokatli   +2 more
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Does Familiarity Breed Trust? The Implications of Repeated Ties for Contractual Choice in Alliances

, 1995
R. Gulati
semanticscholar   +1 more source