International Journal of Poultry Science, 6: The derived allele frequencies at these loci are high in Europeans but low in Africans and East Asians, which could be a clear signal of positive selection in Europeans, as indicated by statistical analysis [ 40 ].
Comparison of red chilli Capsicum annuum oleoresin and astaxanthin on rainbow trout Oncorhyncus mykiss fillet pigmentation. Effects of dietary Spirulina platensis on growth performance, humoral and mucosal immune responses and disease resistance in juvenile great sturgeon Huso huso Linnaeus, Thus, TF fortified diet implicated a significant effect on growth performance as measured in terms of feed intake, body weight gain and food conversion ratio.
A year-old woman had a remote history of generalized fatigue, tightness of the hands, tingling and numbness of the face, joint stiffness, and bluish discoloration of the fingers that worsened with cold weather. Fisheries Science, 28 3: Minocycline-induced skin pigmentation: In addition, scans for selection on skin pigmentation indicate two different selection behaviors acting on de novo mutations and standing variations, respectively.
A paired match approach was used to switch 20 pigs range of initial body weight, BW: Another non-synonymous variant in OCA2, rs, has also been confirmed to be pigmentation-related in an association study of Japanese [ 48 ].
The selection coefficients estimated for pigmentation genes are best understood in the context of estimates for other recently selected loci.
Understanding the genetic basis underlying pigmentation variation in the guppy is important for exploring the factors causing the maintenance of color polymorphism in wild populations. Aquaculture International, 19 5: Hughes, Anne E. Asian Journal of Agricultural Sciences, 2 3 In an earlier study, Hughes showed that male guppies with rare color patterns had a survival advantage compared to those with common patterns in natural populations.
Although these genes are not direct determinants of skin pigmentation, they, like those pigmentation-related genes, possibly helped modern humans adapt to non-African environments. Partial replacement of fish meal with Spirulina pacifica in diets for parrot fish Oplegnathus fasciatus. In this article, we reviewed several cases of skin color adaptation in various populations of modern humans and archaic hominins.
Clinical review Here, we assessed the effect of diet on plumage pigmentation in yellow and red-factor Wilson Journal of Ornithology. in Bird. Red.
More info Close You can manage your cookie settings via your browser at any time. This was to be expected due to evidence that skin pigmentation is genetic. • There was a correlation between carotenoid diet and liver carotenoid levels, but data was not significant. Reproduction potentiated in nematodes (Caenorhabditis elegans) and guppy fish (Poecilia reticulata) by adding a synthetic peptide to their aqueous environment.