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71 results for “Birds”
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Research ArticleOpen accessIn the abstractExogenous 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 · 7,503 accessesView PDFCite
Research ArticleOpen accessIn the abstractUltrastructural Morphology of the Muscle System Organization in the Trematode Typhlocoelium cucumerinumIrina Yurievna Chidunchi, Ainagul Balgauovna Kaliyeva, Natalya Petrovna Korogod et al.Trematodes, also known as flatworms, are a diverse group of parasitic organisms that live in a variety of ecosystems, from freshwater to marine habitats. Their complex life cycle often involves intermediate and definitive hosts and multiple developmental stages. Trematodes have unique morphological features that allow them to adapt, move and parasitize within host tissues and organs. The parasitic lifestyle of … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 1 Jun 2024 · 5,116 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevalence and Genotypic Analysis and Antibiotic Resistance of Salmonella Species Isolated from Imported and Freshly Slaughtered ChickenWael K. Elfeil, Mahmoud E. Ezzat, Amira Fathi et al.Salmonellosis is a bacterial disease caused by different types of Salmonella species and associated with clinical disease in both human, birds and livestock species. Salmonellosis associated with severe economic impacts either from losses in poultry farm due to pathological picture losses, cost of medication, condemnation in slaughterhouse or zoonotic important. This study focused on the prevalence of Salmonellae in imported … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 2 · 28 May 2020 · 6,989 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of the Cresacin Feed Additive on the Digestibility of Nutrients, Productivity and Egg Quality in Egg Laying QuailsDjunaydi Gayirbegov, Gayaz EngurazovThe purpose of the article was to study the effect of the Cresacin feed additive on the digestibility and use of nutrients in the diet of egg laying quails, as well as their egg productivity and quality. The experiment was carried out on 600 heads of one-day-old quails of the Estonian breed, which were divided into four similar groups of … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 1 · 6 Mar 2023 · 5,287 accessesView PDFCite
Research ArticleOpen accessIn the abstractTetracycline Resistance Profile in Darwin Finches in the Galapagos IslandsMaría Inés Baquero, Marylin Cruz, Viviana Duque et al.Antimicrobial Resistance (AMR), which is the ability of microorganisms to withstand attack by antimicrobial drugs, has a worldwide impact. Thus, it is important to identify resistance mechanisms circulating in the environment. Among antimicrobials widely used in human and veterinary health, tetracycline is ideal due to its safety and has been categorized by the WHO as a critically important antimicrobial. Based … …American Journal of Animal and Veterinary Sciences, Vol. 17, Issue 4 · 19 Dec 2022 · 5,794 accessesView PDFCite
Research ArticleOpen accessIn the abstractDiminishing Lagoon Services in the Era of Urbanization: A Case of Muni-Pomadze Lagoon in GhanaJohn Aloba Atubiga, Eric DonkorTheMuni lagoon is among the six internationally recognized coastal wetlands(Ramsar site) under the convention on wetlands because of the role it playswhich promoting human livelihood development and the ecosystem. The period of urbanization has resulted in the encroachment ofthe lagoon leading to the decline of its services. This study investigates thediminishing lagoon services as a result of urbanization, using the … …Journal of Social Sciences, Vol. 18, Issue 1 · 27 Aug 2022 · 6,218 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Feed Additive Supplementation on Growth Performance, Intestinal Morphology, Intestinal Microflora and Nutrient Digestibility Study of Broiler ChickenSunday Egba Omogo, Emeka Henry Oparaji, Franklin Uzodinma EdejiThe present study evaluated the effect of various feed additive supplementation on growth performance, intestinal morphology, intestinal microflora and nutrient digestibility study of starter broiler chicks. A day-old broiler chicks with total number of two hundred and four (204) (Ross 308) were randomly allotted to eight (8) dietary treatments with four (4) replicate pens per treatment (average of 6 birds … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 7 May 2021 · 8,342 accessesView PDFCite
Research ArticleOpen accessIn the abstractFermented Green Vegetable Soybean Meal Increases Dressed Carcass Meat and Bone Weight in Black-Boned Chickens (Fah Luang Chicken, Gallus gallus)Sukit Khantaprab, Buaream Maneewan, Tonglian Buwjoom et al.To use effectively waste green vegetable soyabean (edamame) and to improve the dressed carcass meat in black-boned chickens (Fah Luang chicken, Gallus gallus), fermented edamame meal was fed to black-boned chickens from 4 to 16 weeks of age. At 4 weeks of age, 20 birds (10 male and 10 female birds) were used to measure the initial weights of dressed … …American Journal of Animal and Veterinary Sciences, Vol. 12, Issue 3 · 6 Sep 2017 · 8,529 accessesView PDFCite
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 · 7,846 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Bacterial Enzyme-Based Feed Additives on the Productivity, Digestibility and Assimilation of Nutrients in Young Laying HensSmolentsev Sergei Yur’evich, Rudakova Natalia Leonidovna, Koryagina Anastasia Olegovna et al.The work aimed to study the effect of feed additives based on proteinase and phytase on the productivity, digestibility of nutrients and the development of laying hens up to 18 weeks of age. A total of 360 1-day-old Hisex Brown chickens were assigned to a completely randomized design composed of 3 diets with 4 replicates of 30 birds each. Dietary … …OnLine Journal of Biological Sciences, Vol. 20, Issue 4 · 19 Nov 2020 · 6,300 accessesView PDFCite