2018
DOI: 10.15312/eurasianjvetsci.2018.191
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Farklı orijinli holştaynların döl ve süt verimi özellikleri 2. süt verimi özellikleri

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Cited by 3 publications
(6 citation statements)
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“…In this study, when we subtract the gestational age from the average gestational age (FPA), which was calculated as 23 months for the Holstein breed, the gestational dates for the first of the animals can be determined as an average of 14 months. These values are in agreement with the averages reported by the mean for the same breed (16.5, 18.3 months, and 16.8 months, 14.9, respectively (Alkoyak, 2016;Asan, 2021;Çetin and Alkoyak, 2018;Eyduran et al, 2008;Omar, 2022).The found service period obtained in this study was found to be 123 days and this value was 127 days in the study conducted by (Gürses and Bayraktar, 2012). Gürses and Bayraktar (2012) in TİGEM Ceylanpınar, Dalaman, Koçaş and Tahirova Agricultural Enterprises, on the same breed, while it was 127 days in Aydın province In the study conducted by the company Gürses (2019), ( Gürses, 2019) it is shorter as 144 days; In the study conducted by Sarar and Tapkı (2017) (Sarar and Tapkı, 2017) in Koçaş Agricultural Enterprise, 106 days; In a study conducted by Arı (2019) in a private enterprise in Aydın province, 109 days, (Arı, 2019, Kopuzlu et al, 2008.…”
Section: Discussionsupporting
confidence: 92%
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“…In this study, when we subtract the gestational age from the average gestational age (FPA), which was calculated as 23 months for the Holstein breed, the gestational dates for the first of the animals can be determined as an average of 14 months. These values are in agreement with the averages reported by the mean for the same breed (16.5, 18.3 months, and 16.8 months, 14.9, respectively (Alkoyak, 2016;Asan, 2021;Çetin and Alkoyak, 2018;Eyduran et al, 2008;Omar, 2022).The found service period obtained in this study was found to be 123 days and this value was 127 days in the study conducted by (Gürses and Bayraktar, 2012). Gürses and Bayraktar (2012) in TİGEM Ceylanpınar, Dalaman, Koçaş and Tahirova Agricultural Enterprises, on the same breed, while it was 127 days in Aydın province In the study conducted by the company Gürses (2019), ( Gürses, 2019) it is shorter as 144 days; In the study conducted by Sarar and Tapkı (2017) (Sarar and Tapkı, 2017) in Koçaş Agricultural Enterprise, 106 days; In a study conducted by Arı (2019) in a private enterprise in Aydın province, 109 days, (Arı, 2019, Kopuzlu et al, 2008.…”
Section: Discussionsupporting
confidence: 92%
“…In the current study, the average milk yield according to the lactation order in Table 2 varies between 24.43 and 34.96 (Omar, 2022). In the study of Omar (2022) (Asan, 2021;Çetin and Alkoyak, 2018;Genç and Soysal, 2018;Keskin and Boztepe, 2011;Şahin and Ulutaş, 2010;Sarar and Tapkı, 2017;Tırınk, 2021;Yaylak and Kumlu, 2005)was reported to vary between 5395.11-8264.70 kg and these values are among the values of the current study.…”
Section: Discussionsupporting
confidence: 58%
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“…Özellikle sıcak yaz aylarında kritik seviyelerin aşıldığı bölgelerde gerek beslenme yetersizliği gerekse sıcaklık stresi hayvanların et, süt ve fertilite verimlerinde azalmalara sebep olmaktadır. Bu da yem tüketiminin azalması ve artan stres ile oluşan oksidatif dengenin bozulmasından kaynaklanmaktadır (3,5). Oksidatif stres hücresel veya bireysel düzeyde oksidan ve antioksidanlar arasında oksidanlar lehine oluşan dengesizlik olarak tanımlanır (6).…”
unclassified
“…Sıcaklık stresinin etkisiyle; follikül gelişiminde gecikme, oosit kalitesinde azalma, ovulasyonda gecikme veya ovulasyonun şekillenememesi, embriyonun implantasyonunda başarısızlıklar, embriyonik ölümler ve düşük canlı ağırlığa sahip yavrular, gebelik oranında azalma, östrüs siklusunda aksamalar ve östrüs tespitinde güçlükler, anöstrus ve uygun olmayan uterus ortamı gibi fertilite ile direkt ilişkili olumsuzluklar görülmektedir (3,4,9). Bu amaçla, sıcaklık stresinin neden olduğu olumsuz etkileri azaltmak için; bakım ve beslenme koşullarının düzeltilmesi, azalan yem tüketimi kaybının önüne geçilmesi, dengeli rasyon, yem katkı maddeleri ilavesi, antioksidan uygulamaları, serinletme, gölgeleme, genetik seleksiyon, hormon kullanımı ve üremenin denetlenmesi gibi uygulamalar yapılmaktadır (4,5,10,11). Antioksidan olarak da bilinen vitamin, mineral ve iz elementler oksidatif stresin engellenmesi, metabolizmanın düzenlenmesi ve fertilite verilerinin iyileştirilmesinde önemli rollere sahiptirler (12)(13)(14).…”
unclassified