1 Ocak 2021 Dergi makalesi Açık Erişim

Aksoy, T.; Curek, D. Ilaslan; Narinc, D.; Onenc, A.

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{
  "@context": "https://schema.org/", 
  "@id": 232088, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Akdeniz Univ, Dept Anim Sci, Fac Agr, Antalya, Turkey", 
      "name": "Aksoy, T."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Zoo & Nat Pk Antalya Metropolitan Municipal, Antalya, Turkey", 
      "name": "Curek, D. Ilaslan"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Akdeniz Univ, Dept Anim Sci, Fac Agr, Antalya, Turkey", 
      "name": "Narinc, D."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Namik Kemal Univ, Fac Agr, Dept Anim Sci, Tekirdag, Turkey", 
      "name": "Onenc, A."
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "This study aimed to determine the effects of chicken genotype (fast-growing and slow-growing), various semi-intensive production systems (extensive indoor, free-range, and traditional free-range), and season (spring and summer) on animal performance, mortality, growth curve, and slaughter results under semi-environmentally controlled conditions in a subtropical region. Production systems were applied in conformity with the EU standards. While the summer experiment improved performance during brooding (1st-28th days), hot conditions led to a decline in performance during the growing period. In addition, negative effects were determined for all parameters of Gompertz growth curve in summer (P < 0.05, for all). In spring, fast-growing showed 36% higher final live weights than slow-growing, and this difference decreased in summer (16% for extensive indoor and 25% for free-range) (P < 0.05, for all). Fast-growing in extensive indoor and free-range displayed similar weight gains in the growing period, whereas grazing ones consumed less feed (P < 0.05) and thus showed better (P < 0.05) feed conversion. The same situation was true for slow-growing in spring. The mortality was approximately 1% in all groups in spring, while it was 17.36 and 18.06% for fast-growing in extensive indoor and free-range and 1.39, 2.78, and 4.29 for slow-growing in extensive indoor, free-range, and traditional free-range in summer. It is advantageous to choose fast-growing if short-term (56 days) fattening especially under optimum conditions is to be preferred. If the growing period coincides with summer, slow-growing should definitely be preferred and the fattening period should be extended to 82 days. Grazing improved feed conversion (P < 0.05) by reducing cereal-based diet consumption in both genotypes but did not affect carcass yield. However, grazing had a positive effect on fleshing.", 
  "headline": "Effects of season, genotype, and rearing system on broiler chickens raised in different semi-intensive systems: performance, mortality, and slaughter results", 
  "identifier": 232088, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Effects of season, genotype, and rearing system on broiler chickens raised in different semi-intensive systems: performance, mortality, and slaughter results", 
  "url": "https://aperta.ulakbim.gov.tr/record/232088"
}