Farklı açlık tokluk besleme döngülerinin lepistes (Poecilia reticulata) balıklarında cinsiyete göre büyüme performansı ve maliyet üzerine etkileri
Küçük Resim Yok
Tarih
2017
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Lepistes (Poecilia reticulata), pratikte çoğu zaman düzenli beslemenin uygulanmadığı hatta çoğu günler beslemenin bile yapılmadığı görülen bir süs balığı türüdür. Bu çalışmada, farklı açlık tokluk beslenme döngülerinin lepistes balıklarında cinsiyete göre büyüme ve gelişme üzerine etkileri araştırılmıştır. Çalışma dişi ve erkek bireylerde 3 tekrarlı olarak yürütülmüştür. Başlangıçta ortalama ağırlıkları ve total boyları 0,129±0,025 g ve 2,39±0,20 cm olan dişi ve 0,122±0,019 ve 2,39±0,14 cm olan erkek bireyler 30/50L stok yoğunluğunda kullanılmıştır. Denemede dişi (D) ve erkekler (E) ile ayrı deneme grupları oluşturularak, bu gruplar günde bir (K), bir gün aç bir gün tok (AT) ve iki gün aç bir gün tok (AAT) olarak beslenmişlerdir. Besleme doyana kadar pul yem ile yapılmıştır. Balıklarda büyüme ve gelişim 15 günde bir örnekleme (ağırlık ve total boy) ile 16 hafta boyunca takip edilmiştir. Çalışma sonunda en iyi ağırlık artışı dişi kontrol (KD) grubunda görülürken ATD grubu dişi bireylerde daha az ve AATD, KE, ATE ve AATE gruplarında ise eşit ağırlık artışları görülmüştür (P<0,05). Total boylar arasında anlamlı bir fark görülmese de (P>0,05) en iyi total boy artışı KD ve KE gruplarında görülmüştür, diğer grupların total boy değerleri birbirlerine yakındır. Maliyet analizleri sonucunda ise en karlı besleme KD grubunda saptanmıştır. Sonuç olarak lepisteslerin ticari besiciliğinde en azından günde bir kez beslenmeleri önerilmiştir
Guppy (Poecilia reticulata) is an ornamental fish species which regular feeding has often been applied even it cannot be done on most days for its feeding, in practice. in this study, effects of cycled starvation feeding regimes and gender on growth of guppy were investigated. the study was carried out with three replicates with male and female groups. Female guppies with mean weight of 0.129±0.025 g and mean total lenght of 2.39±0.20 cm and male guppies with mean weight of 0.122±0.019 g and mean total lenght of 2.39±0.14 cm were placed to each aquarium with 30 ind./50 L stocking density. in the experiment, female (D) and male (E) guppies were formed in separate groups, these groups were fed with once a day (K), every other day (AT) and other two days (AAT) starvation cycles. Fish were fed at satiation with flake feeds. Growth and development of fish were measured at every 15 days (weight and total lenght) during 16 weeks. the best weight gain was shown in female control group (KD) while lower in ATD than the KD group and equal weight gain was observed in the AATD, KE, ATE and AATE groups (P<0.05). A significant difference was not appeared between mean total lenghts (P>0.05). the best total lenght gain was shown in KD and KE groups, and also mean total length values of other groups are close to each other. As a result of cost analysis, the most profitable feeding has been stated on KD group. in conclusion, at least once a day feeding is recommended for commercial guppy feeding
Guppy (Poecilia reticulata) is an ornamental fish species which regular feeding has often been applied even it cannot be done on most days for its feeding, in practice. in this study, effects of cycled starvation feeding regimes and gender on growth of guppy were investigated. the study was carried out with three replicates with male and female groups. Female guppies with mean weight of 0.129±0.025 g and mean total lenght of 2.39±0.20 cm and male guppies with mean weight of 0.122±0.019 g and mean total lenght of 2.39±0.14 cm were placed to each aquarium with 30 ind./50 L stocking density. in the experiment, female (D) and male (E) guppies were formed in separate groups, these groups were fed with once a day (K), every other day (AT) and other two days (AAT) starvation cycles. Fish were fed at satiation with flake feeds. Growth and development of fish were measured at every 15 days (weight and total lenght) during 16 weeks. the best weight gain was shown in female control group (KD) while lower in ATD than the KD group and equal weight gain was observed in the AATD, KE, ATE and AATE groups (P<0.05). A significant difference was not appeared between mean total lenghts (P>0.05). the best total lenght gain was shown in KD and KE groups, and also mean total length values of other groups are close to each other. As a result of cost analysis, the most profitable feeding has been stated on KD group. in conclusion, at least once a day feeding is recommended for commercial guppy feeding
Açıklama
Anahtar Kelimeler
Balıkçılık, Zooloji
Kaynak
Su Ürünleri Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
34
Sayı
4
