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Journals / Turkish Journal of Veterinary and Animal Sciences / 2007 / Cilt: 31 - Sayı: 1

Pigmentation of Rainbow Trout (Oncorhynchus mykiss) with Carotenoids from Marigold Flower (Tagetes erecta) and Red Pepper (Capsicum annum)

Hakan Murat BÜYÜKÇAPAR
Mahmut YANAR
Yasemen YANAR
Pages
7–12
Publication Date
2007-01-01
DOI
—
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

It can be concluded that the most appropriate dietary doses of marigold flower and red pepper for pigmentation of rainbow trout are 1.6% and 4.4%, respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The effects of diets including various natural carotenoid sources and synthetic astaxanthin on the pigmentation and growth of rainbow trout (Oncorhynchus mykiss) were investigated.
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Key Findings & Data:Rainbow trout weighing about 111 g were fed diets containing 1.6%, 2.4% and 3.2% marigold flower; 4.4%, 6.6% and 8.8% red pepper; 100 mg kg-1 synthetic astaxanthin; and a control diet for 60 days.
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Conclusion & Impact:It can be concluded that the most appropriate dietary doses of marigold flower and red pepper for pigmentation of rainbow trout are 1.6% and 4.4%, respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Pigmentation · Oncorhynchus mykiss · red pepper

Abstract

The effects of diets including various natural carotenoid sources and synthetic astaxanthin on the pigmentation and growth of rainbow trout (Oncorhynchus mykiss) were investigated. Rainbow trout weighing about 111 g were fed diets containing 1.6%, 2.4% and 3.2% marigold flower; 4.4%, 6.6% and 8.8% red pepper; 100 mg kg-1 synthetic astaxanthin; and a control diet for 60 days. At the end of the experiment, synthetic astaxanthin provided the highest carotenoid accumulation in the fish flesh (6.42 mg kg-1) in the groups. This was followed by red pepper (5.78 mg kg-1) and marigold flower (5.59 mg kg-1), each of which included equal levels (100 mg kg-1) of carotenoids (P < 0.05). The fish fed marigold flower experienced yellow pigmentation, which was remarkably different from the other groups. An addition level of 2.4% or higher marigold flower and 6.6% or higher red pepper into the diet had negative effects on growth performance (P < 0.05). It can be concluded that the most appropriate dietary doses of marigold flower and red pepper for pigmentation of rainbow trout are 1.6% and 4.4%, respectively.

Özet

The effects of diets including various natural carotenoid sources and synthetic astaxanthin on the pigmentation and growth of rainbow trout (Oncorhynchus mykiss) were investigated. Rainbow trout weighing about 111 g were fed diets containing 1.6%, 2.4% and 3.2% marigold flower; 4.4%, 6.6% and 8.8% red pepper; 100 mg kg-1 synthetic astaxanthin; and a control diet for 60 days. At the end of the experiment, synthetic astaxanthin provided the highest carotenoid accumulation in the fish flesh (6.42 mg kg-1) in the groups. This was followed by red pepper (5.78 mg kg-1) and marigold flower (5.59 mg kg-1), each of which included equal levels (100 mg kg-1) of carotenoids (P < 0.05). The fish fed marigold flower experienced yellow pigmentation, which was remarkably different from the other groups. An addition level of 2.4% or higher marigold flower and 6.6% or higher red pepper into the diet had negative effects on growth performance (P < 0.05). It can be concluded that the most appropriate dietary doses of marigold flower and red pepper for pigmentation of rainbow trout are 1.6% and 4.4%, respectively.

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Cite This Article

BÜYÜKÇAPAR, H. M., YANAR, M., YANAR, Y. (2007). Pigmentation of Rainbow Trout (Oncorhynchus mykiss) with Carotenoids from Marigold Flower (Tagetes erecta) and Red Pepper (Capsicum annum). Turkish Journal of Veterinary and Animal Sciences, Cilt: 31 - Sayı: 1, 7–12. https://ajindex.com/articles/122242

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