EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)

Stefka STOYANOVA; Georgi ZHELYAZKOV; Katya VELICHKOVA; İvaylo SIRAKOV; Yordan STAYKOV

doi:https://doi.org/10.3153/AR18012

Makale detayları

EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)

Yazarlar:

Stefka STOYANOVA | Georgi ZHELYAZKOV | Katya VELICHKOVA | İvaylo SIRAKOV | Yordan STAYKOV

Ana Başlıklar:

Ekoloji

Dergi:

Aquatic Research 2018 Vol.1 Issue 3, pp.110-114

Belge Tipi:

Makale

Yayın Tarihi:

3/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000859682

DOI:

https://doi.org/10.3153/AR18012

Özet:

 





The purpose of this study is to evaluate the effect
of a dietary savory extract supplement on the survival rate, growth
performance, feed conversion ratio and economic efficiency of common carp (Cyprinus carpio L.) reared in a
recirculation system. Thirty-two carps were allotted into two experimental
variants, each of them comprising two replications with 8 fish in a group. The
average initial live weight of fish from both replications from the control
group (CG) and experimental group (EG) was 866.56±113.99 g and 866.81±119.10 g,
respectively (p>0.05). They were kept in concrete tanks with efficient water
volume of 0.8 m3, elements of the recirculation system. Carps were
fed pelleted carp feed with 25% crude protein, produced with pellet size of 6
mm. The feed of fish from the EG was supplemented with 1% powdered savory
extract, after lubricating the pellets with 5 ml sunflower oil per 100 g feed.
Control carp received the same amount of sunflower oil-lubricated feed. The
daily ration of fish from both replications was 1.8% of their live weight. The
experiment duration was 45 days. Survival rates during the experiment showed 100% survival in carps, supplemented with 1% savory extract
as well as in control fish.  The average individual weight gain of carps from the two EG replications (supplemented with
1% savory extract) was
154.63±28.39 g, which was higher than that of controls by 57.18% (Table 3), as the
differences were statistically significant (p<0.001). At the end of the trial, the
analysis of consumed feed amount showed that feed conversion ratio in the group
supplemented with 1% savory extract was 2.25±0.43 e.g. by 67.11% lower than
that of control group, as the differences were statistically significant
(p<0.001). The group that received 1% savory extract exhibited better
economic conversion ratio (1.98), by 42.42% lower than that of the
non-supplemented group.


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Makale detayları

EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)

Yazarlar: Stefka STOYANOVA | Georgi ZHELYAZKOV | Katya VELICHKOVA | İvaylo SIRAKOV | Yordan STAYKOV

Ana Başlıklar: Ekoloji

Dergi: Aquatic Research 2018 Vol.1 Issue 3, pp.110-114

Belge Tipi: Makale

Yayın Tarihi: 3/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000859682

DOI: https://doi.org/10.3153/AR18012

Sayı

Yazarlar:

Stefka STOYANOVA | Georgi ZHELYAZKOV | Katya VELICHKOVA | İvaylo SIRAKOV | Yordan STAYKOV

Ana Başlıklar:

Ekoloji

Dergi:

Aquatic Research 2018 Vol.1 Issue 3, pp.110-114

Belge Tipi:

Makale

Yayın Tarihi:

3/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000859682

DOI:

https://doi.org/10.3153/AR18012