Observations on the Sub-Microscopic Structures of Gallus Gallus Spermatozoa
نویسندگان
چکیده
منابع مشابه
Domestication effects on the social behaviour of chicken (Gallus gallus)
The domestication process has altered the behaviour of the chicken in different ways. It is mainly the thresholds that have been affected more than the actual behaviour repertoire. The selection pressure in captivity can be either active or passive depending on the environment and the interference by human. An active selection on fear of human seems to change the behaviour according to the dome...
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The genetic diversity of Bhutanese chickens needs to be understood in order to develop a suitable conservation strategy for these birds in Bhutan. In this, work, we used microsatellite markers to examine the genetic diversity of Bhutanese chickens. Four Bhutanese chicken varieties (Black plumage, Frizzle, Naked neck and Red Junglefowl-like, corresponding to Yuebjha Narp, Phulom, Khuilay and Sei...
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Many social birds produce food-associated calls. In galliforms, these vocalizations are typically accompanied by a distinctive visual display, creating a multimodal signal known as tidbitting. This system is ideal for experimental analysis of the way in which signal components interact to determine overall efficacy. We used high-definition video playback to explore perception of male tidbitting...
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The anionic charge barrier and the endothelial and epithelial pore sizes on the glomerular filtration barrier (GFB) were examined in white leghorn chickens (Gallus gallus). Ruthenium red was used to stain anionic charge sites on the GFB. The tissue was treated by normal dehydration and freeze substitution dehydration for transmission electron microscopy (TEM). In addition, the basal lamina was ...
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Vision is the primary sensory modality of birds, and its importance is evident in the sophistication of their visual systems. Coloured oil droplets in the cone photoreceptors represent an adaptation in the avian retina, acting as long-pass colour filters. However, we currently lack understanding of how the optical properties and morphology of component structures (e.g. oil droplet, mitochondria...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1954
ISSN: 0032-5791
DOI: 10.3382/ps.0331151