Untitled

Abstract

This study aimed to evaluate the nutritional qualities of selected commercial fish meals (FM) in diets of juvenile shi drum, Umbrina cirrosa L..The five FMs diets based on two Peruvian anchovy meals (one is a flame dried FM: Peru-1 and the other steam-dried FM: Peru-2), a Danish low-temperature FM (Danish LT), a domestic anchovy LT meal (Domestic LT) and an Alaskan white FM (WFM) as major protein source were formulated to contain 56% protein. The diets were fed to triplicated groups of fish with initial average weight 25.06±0.11 g for 7 weeks. Fish on Peru-2 diet performed better than those on WFM in terms of final weight and specific growth rate. These fish were also significantly better regarding nutrient utilization efficiency than those fed WFM and Peru-1 diets, but similar to those on Danish LT and Domestic LT. WFM diet fed fish had significantly less amount of body lipid than those fed Danish LT diet and retained lower lipid than the other groups of fish. The results indicate that different commercial sources of FMs do not have an equal nutritional value for juvenile shi drum, an important finding that should be considered in future studies. ÖzetBu araştırma yavru minekoplarda (Umbrina cirrosa L.), seçilen bazı ticari balık unlarının (BU) besleme kalitelerini değerlendirmeyi amaçlamıştır. Başlıca protein kaynağı olarak, iki Peru hamsi unu (biri alev-kurutmalı BU:Peru-1, diğeri buhar-kurutmalı BU:Peru-2), düşük-sıcaklıkta işlem görmüş bir Danimarka BU (Danimarka LT), bir yerli hamsi BU (Yerli LT) ve Alaska beyaz BU (BBU) içeren beş adet deneme yemi (%56 proteinli) hazırlanmıştır. Yemler üç tekerrürlü olarak, başlangıç ağırlığı of 25.06±0.11 g olan balıklara 7 hafta boyunca verilmiştir. Peru-2 ile beslenen balıklar, BBU ile beslenenlerden daha yüksek deneme sonu ağırlığı ve spesifik büyüme oranı göstermiştir. Bu balıklar yemden yararlanma etkinliği bakımından da BBU ve Peru-1 alanlardan daha üstün olmuşlar, fakat Danimarka-LT ve Yerli-LT ile beslenenlere benzerlik göstermişlerdir. BBU ile beslenen balıkların vücut lipit düzeyleri Danimarka-LT ile beslenenlerden önemli derecede daha düşük olmuş ve vücutlarında diğer gruplardan daha az lipit tutmuşlardır. Bulgular, farklı ticari BU kaynaklarının yavru minekoplar için eşit bir besleme değerine sahip olmadıklarını göstermiş ve bunun türle ilgili gelecek çalışmalarda mutlaka dikkate alınmasını önermiştir.Anahtar Kelimeler: Minekop, Umbrina cirrosaL., balık unu, büyüme, besin madde değerlendirme

Influence of partial replacement of fish meal and fish oil with vegetable products on the growth and muscle cellularity of juvenile shi drum, Umbrina cirrosa

“…Reproduction without hormonal induction has already been achieved for shi drum born in captivity (Arizcun-Arizcun et al 2014). So far, some studies on its nutritional requirements (Akpinar et al 2012, Morgane and Fountoulaki 2014, Sevgili et al 2015 and on the use of plant sources (soybean and cereals) in its diet (Segato et al 2005(Segato et al , 2008 have showed that the shi drum can tolerate a relatively high inclusion of plant products without having negative effects on growth and feed efficiency. For juvenile meagre (Argyrosomus regius), a sciaenid with similar characteristics to the shi drum, Ribeiro et al (2015) studied the effect of vegetable-based diets on growth, intestinal parameters, and hematological stress indicators over a period of 88 d and found that growth was not significantly affected by the replacement of fish meal and fish oil with the alternative ingredients.…”

“…Ya se ha logrado la reproducción, sin inducción hormonal, de ejemplares de esta especie nacidos en cautividad (Arizcun et al 2014). Hasta ahora, algunos estudios sobre sus necesidades nutricionales (Akpinar et al 2012, Morgane y Fountoulaki 2014, Sevgili et al 2015) y sobre el uso de fuentes vegetales (productos de soya y cereales) en su dieta (Segato et al 2005(Segato et al , 2008 han demostrado que el verrugato tolera una inclusión relativamente alta de productos vegetales sin tener efectos negativos en el crecimiento y la eficiencia alimenticia. En juveniles de corvina (Argyrosomus regius), un esciénido de características similares al verrugato, Ribeiro et al (2015) estudiaron el efecto de las dietas basadas en vegetales sobre el crecimiento, los parámetros intestinales y los indicadores de estrés hematológico durante 88 d y encontraron que el crecimiento de la corvina no se vio afectado significativamente por el formulate feeds.…”

Influence of partial replacement of fish meal and fish oil with vegetable products on the growth and muscle cellularity of juvenile shi drum, Umbrina cirrosa

“…Reproduction without hormonal induction has already been achieved for shi drum born in captivity (Arizcun-Arizcun et al 2014). So far, some studies on its nutritional requirements (Akpinar et al 2012, Morgane and Fountoulaki 2014, Sevgili et al 2015 and on the use of plant sources (soybean and cereals) in its diet (Segato et al 2005(Segato et al , 2008 have showed that the shi drum can tolerate a relatively high inclusion of plant products without having negative effects on growth and feed efficiency. For juvenile meagre (Argyrosomus regius), a sciaenid with similar characteristics to the shi drum, Ribeiro et al (2015) studied the effect of vegetable-based diets on growth, intestinal parameters, and hematological stress indicators over a period of 88 d and found that growth was not significantly affected by the replacement of fish meal and fish oil with the alternative ingredients.…”

“…Ya se ha logrado la reproducción, sin inducción hormonal, de ejemplares de esta especie nacidos en cautividad (Arizcun et al 2014). Hasta ahora, algunos estudios sobre sus necesidades nutricionales (Akpinar et al 2012, Morgane y Fountoulaki 2014, Sevgili et al 2015 y sobre el uso de fuentes vegetales (productos de soya y cereales) en su dieta (Segato et al 2005(Segato et al , 2008 han demostrado que el verrugato tolera una inclusión relativamente alta de productos vegetales sin tener efectos negativos en el crecimiento y la eficiencia alimenticia. En juveniles de corvina (Argyrosomus regius), un esciénido de características similares al verrugato, Ribeiro et al (2015) estudiaron el efecto de las dietas basadas en vegetales sobre el crecimiento, los parámetros intestinales y los indicadores de estrés hematológico durante 88 d y encontraron que el crecimiento de la corvina no se vio afectado significativamente por el formulate feeds.…”