A Preliminary Study on Protease Activity of Russian Sturgeon, Acipencer gueldenstaedtii Brandt and Ratzenburg, 1833, at Early Life Stages

Balık yemi endüstrisi, aday türlerin optimum rasyon ihtiyacını belirlemek için araştırmalarına devam etmektedir. Bu amaçla yapılan in vitro analiz metotları, in vivo metotlara göre daha verimli olabilir. Bu çalışma iki farklı çalışmadan oluşmaktadır; bunlardan birincisi ticari besleme protokolünün proteaz enzimlerinin değişimi üzerine olan etkisini, ikinci çalışma ise farklı protein kaynaklarının Rus mersini, A. gueldenstaedtii, jüvenillerinin erken dönem proteaz aktivitiesi üzerine olan inhibisyon etkisini belirlemeyi amaçlamıştır. İlk çalışmada, canlı yem ile besleme ve karma yeme geçiş periyodunun, sindirim sistemindeki günlük proteaz miktarını istatistiki olarak etkilediği tespit edilmiştir (P

Rus Mersin Balığının, Acipencer gueldenstaedtii Brandt ve Ratzenburg, 1833, Yaşamlarının İlk Dönemlerindeki Proteaz Aktivitesi Üzerine Bir Ön Çalışma

The fish feed industry continues to researches for optimum diet demands for candidate species culture. For this purpose, in vitro analyze methods may be more efficient than in vivo assays. This study includes two different stages; the first one is about the effect of commercial feeding protocol on protease enzyme alteration and the second one is about the inhibitory effects of different protein sources on early life proteases of Russian sturgeon, A. gueldenstaedtii, juveniles. In the first step, feeding with live prey and transition period to artificial feed significantly affected the daily amount of protease in digestive system (P

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