Effect of different protein sources on protease activity of Neon tetra, Paracheirodon innesi (Myers, 1936) juveniles

Abstract

Neon tetra, Paracheirodon innesi, is a highly valuable fish species for the aquarium sector. In this study, to determine the inhibitory effects of different protein sources (soybean protein concentrate, soybean meal, fish meal, shrimp meal, krill meal, corn gluten and chicken meal) on early life stage proteases, invitro assays were applied. At the end of the study, the highest inhibition ratios were obtained from soybean protein concentrate (53.59±0.58 %) as plant protein sources. On the other hand, the minimum inhibition ratios were obtained from shrimp and chicken meal (21.88±0.74 % and 21.88±1.26 %, respectively) (p>0.05). In conclusion, it is concluded that the soy bean protein concentrate should not be used in the commercial diets as protein source on ongrowing size of this species.

Keywords

• Neon tetra
• Protease activity
• Protein Sources
• Inhibition ratio

Farklı protein kaynaklarının Neon tetra, Paracheirodon innesi (Myers, 1936) jüvenillerinin proteaz aktivitesi üzerine etkisi

Öz

Neon tetra, Paracheirodon innesi, akvaryum sektörü açısından oldukça yüksek değere sahip bir balık türüdür. Bu çalışmada, farklı protein kaynaklarının (soya protein konsantresi, soya unu, balık unu, karides unu, krill unu, mısır glüteni, ve tavuk unu) erken dönem proteaz enzimleri üzerine inhibe edici etkilerini bulmak amacıyla invitro analizler yapılmıştır. Çalışma sonunda, en yüksek inhibisyon oranı bitkisel protein kaynaklarından soya protein konsantresinden (%53,59±0,58) elde edilmiştir. Diğer yandan, en düşük inhibisyon oranları karides ve tavuk unundan elde edilmiştir (sırasıyla, %21,88±0,74 ve %21,88±1,26) (p>0,05). Sonuç olarak, bu türün erken dönem beslenmesinde karma yemlerinde soya protein konsanteresinin protein kaynağı olarak kullanılmaması gerektiği kanaati doğmuştur.

Anahtar Kelimeler

• Neon Tetra
• Proteaz aktivitesi
• Protein kaynakları
• İnhibisyon oranı

Kaynakça

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