O Perigo dos Genes Escondidos: Como um Galo Perfeito Pode Estragar seu Plantel
Did you know that a seemingly perfect breeder can carry hidden genes capable of disrupting the standard and ruining the future of your flock? In this video, Ricardo Dornas reveals how dominant genes and masked alleles are passed down from generation to generation without you realizing it, using the complex genetics of the Brahma breed in the Isabella color as a practical example. Learn how to escape the "perfect breeder trap" and understand why visual defects in pullets are often due to flaws inherited from the father, grandfather, or lineages without proper selection. Don't miss our big live event and masterclass on June 15th for the official launch of the Poultry Genetics Treatise! Understand in detail the formation of the Isabella pattern, which requires the combination of the Brown/Partridge gene (Eb), the golden gene, and the Lavender gene (lav), in addition to the penciled gene (Pattern Gene - Pg). Discover how to identify contamination by the wild gene (e+) even in chicks through the shade of down (lead-gray vs. altered shades). Ricardo explains the behavior of the E locus and why heterozygous roosters perfectly mask these flaws, while homozygous hens for the wild or wheat gene (ey) end up completely losing the clean lacing marking, resulting in birds with blurred feathers and outside the show standard. Topics covered in the video: The Perfect Breeder Trap: How males mask undesirable genes in the phenotype. Isabella Color Genetics: The interaction between the Partridge (Eb), Lavender (lav) genes and modifiers such as Mahogany. Chick Identification: How to differentiate the ideal lead gray from carriers of the wild gene (e+). E Locus Interactions: Understanding the dominance of the Wheat gene and how it destroys lacing marking (Pg). Elite Selection: The use of progeny testing, practical pedigree control by pen, and the importance of acquiring breeding stock from reputable breeders. Cantinho dos Brahmas - Clei - 24 98854-4101 #PoultryGenetics #IsabelaBrahma #LocusE #GeneticImprovement #ChacaraDornas #LightBrahma #Purebreds #ExhibitionStandard #FertileEggs #ChickenRaising #ElitePoultryFarming
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