4 results for “Sex Chromosome”

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Research ArticleOpen accessIn the keywordsExogenous Progesterone for Offspring Sex Ratio Manipulation in Arabic Chickens (Gallus turcicus) Leading to Increasing Female Chicks ProportionIswati, Muhammad Halim Natsir, Gatot Ciptadi, Trinil SusilawatiFemale birds of egg-laying hens are more valuable than males, because males bird have no commercial value. The opportunity to manipulate offspring sex ratio in poultry has been observed in female birds; hence, female birds have heterogametic ZW chromosomes. High progesterone concentration 2-5 h before ovulation is thought to affect the segregation of female sex chromosomes as the basis for … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 17 Feb 2021 · 7,500 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAnalysis of the Cytogenetic Status, Genome Instability, and Adaptive Potential of the Kazakh Tobet DogOksana Cherednichenko, Anastassiya Pilyugina, Dinara Azizbekova et al.In recent years, interest in indigenous dog breeds has increased. The Tobet is a unique breed of Kazakh livestock guardian dogs adapted to nomadic pastoralism that developed over thousands of years across Central Asia and Turkestan. Currently, the Tobet breed faces critical endangerment. Its conservation and sustainable breeding require thorough analysis of hereditary characteristics, genome stability, and adaptive potential. In … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 4 · 19 Feb 2026 · 1,891 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSex Identification and the Sex-Related Genes of Nipponia NipponFeilong Sun, Xuanfu Huang, Shuiyun YangSex identification in birds is necessary for studying their ecology, behavior and population dynamics and structure. This study was carried out to determine the sex of Nipponia nippon by a Polymerase Chain Reaction (PCR) method. The sexing universal primers of non-ratite birds were employed to amplify the sexing related genes and identify the sex of each individual. A 657 bp … …American Journal of Biochemistry and Biotechnology, Vol. 13, Issue 2 · 30 May 2017 · 7,841 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSomatic Chromosomes of the Bornean Sambar Deer and Rusa Deer Interspecific HybridsIsmail Idris, Saidi MoinProblem statement: Hybridization has potential benefits to the Malaysian farmed deer industries in terms of increased growth rate and increased proportion of muscle and an improved alignment of feed supply and annual energy requirement. Species or subspecies of different chromosome constitution could mate to produce healthy hybrid offspring in a normal ratio of males and females. If any of the … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 8,687 accessesView PDF Cite