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Veterinary Medicine

Pigmentation

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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 Jan 2007

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

Turkish Journal of Veterinary & Animal Sciences

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 …


The Effects Of Red Pepper, Marigold Flower, And Synthetic Astaxanthin On Pigmentation, Growth, And Proximate Composition Of Penaeus Semisulcatus, Mustafa Göçer, Mahmut Yanar, Meti̇n Kumlu, Yasemen Yanar Jan 2006

The Effects Of Red Pepper, Marigold Flower, And Synthetic Astaxanthin On Pigmentation, Growth, And Proximate Composition Of Penaeus Semisulcatus, Mustafa Göçer, Mahmut Yanar, Meti̇n Kumlu, Yasemen Yanar

Turkish Journal of Veterinary & Animal Sciences

Shrimps with an initial weight of 11.10 ± 0.26 g were fed diets supplemented with 6.6% red pepper (RP), 2.4% marigold flower (MF), and 100 mg/kg synthetic astaxanthin (SA), each of which contained 100 mg/kg total carotenoid, and a control diet (BD), without carotenoid supplement for 60 days. Dietary carotenoid sources did not significantly affect the growth of the shrimps (P > 0.05). SA supplementation yielded the highest survival rate (92%), followed by RP (82%) and the other diets (75%) (P < 0.05). All dietary carotenoid sources provided higher carotenoid accumulation compared to the control group (P < 0.05), but the difference between them was not significant (P > 0.05). RP and SA resulted in a greater protein increase in shrimp muscle than MF (P < 0.05); however, lipid, ash, and water content were similar in all diet groups (P > 0.05).


Effect Of Natural And Synthetic Carotenoid Sources On Pigmentation Of Rainbow Trout (Oncorhynchus Mykiss), Sebahatti̇n Ergün, Muammer Erdem Jan 2000

Effect Of Natural And Synthetic Carotenoid Sources On Pigmentation Of Rainbow Trout (Oncorhynchus Mykiss), Sebahatti̇n Ergün, Muammer Erdem

Turkish Journal of Veterinary & Animal Sciences

A feeding trial was conducted to assess the effects of supplementing the diets of commercial-size rainbow trout (Oncorhynchus mykiss) with red pepper as a natural carotenoid source and synthetic astaxanthin. Diets without carotenoid supplemented (control) and containing 3% or 6% red pepper and 0.05% "Carophyll Pink 8%" were given to groups 1-4, respectively. Rainbow trout, with weight of groups between 470 and 483 g, were fed four different diets for 45 days. At the end of the experiment, the trout showed an average body weight increase of 157.599 g, 110.729 g, 136.641 g and 190.091 g, and feed conversion averaged …


Effects Of The Levels Of Astaxanthin In The Diet On The Flesh Pigmentation Of Rainbow Trout, Muammer Erdem, Sebahatti̇n Ergün Jan 2000

Effects Of The Levels Of Astaxanthin In The Diet On The Flesh Pigmentation Of Rainbow Trout, Muammer Erdem, Sebahatti̇n Ergün

Turkish Journal of Veterinary & Animal Sciences

A feeding trial was conducted to study the effects of dietary astaxanthin concentration on muscle pigmentation of rainbow trout ( Oncorhynchus mykiss) with a mean initial weight of 270 g fed diets supplemented with astaxanthin in diet concentrations of 60 (group II) and 90 mg/kg (group III) for 35 days. A control (I) group received a diet without astaxanthin. At the end of the experiment, the trout showed average body weight increases of 250.660g, 261.675 g and 234.410 g, and the flesh reached a level of 0.695 mg/kg, 10.539 mg/kg and 11.954 mg carotenoid/kg in groups I, II and III, …


The Effect Of Natural And Synthetic Carotenoids On Pigmentation Of Gold Fish (Carassius Auratus), Mahmut Yanar, Nazmi̇ Tekeli̇oğlu Jan 1999

The Effect Of Natural And Synthetic Carotenoids On Pigmentation Of Gold Fish (Carassius Auratus), Mahmut Yanar, Nazmi̇ Tekeli̇oğlu

Turkish Journal of Veterinary & Animal Sciences

In this study, the effect natural end synthetic carotenoids on pigmentation of gold fish (Carassius auratus) was investigated. The fish were fed on diets containing 75 mg/kg zeaxanthin, astaxanthin, zeaxanthin+astaxanthin, 6% alfalfa, red pepper, carrot or plankton (Daphnia spp. and Scenedesmus spp.). At the end of the 60 days of experimental period, total carotenoid accumulation in the skin of the fish fed the experimental diets were 33.52±0.62 mg/kg for zeaxanthin, 29.84±0.50 mg/kg for red pepper, 27.07±0.62 mg/kg for Daphnia spp., 26.52±0.42 mg/kg for Scenedesmus spp., 25.84±0.62 mg/kg for astaxanthin+zeaxanthin, 23.95±0.68 mg/kg for astaxanthin, 19.95±0.66 mg/kg for carrot, 16.58±0.64 mg/kg for …


The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In White Corn And Wheat Based Diets, Figen Kirkpinar, Ramazan Erkek Jan 1999

The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In White Corn And Wheat Based Diets, Figen Kirkpinar, Ramazan Erkek

Turkish Journal of Veterinary & Animal Sciences

The study was carried out to investigate the effect of adding lutein, alfalfa meal, marigold meal, paprika meal, ?-apo-8'-carotenoic acid ethyl ester, canthaxanthin and ?-apo-8'-carotenoic acid ethyl ester+canthaxanthin (3:1) on egg yolk pigmentation and production in white corn and wheat diets. The maximum Roche color fan (RCF) value was found in canthaxanthin and the mixture of ?-apo-8'-carotenoic acid ethyl ester and canthaxantin. The maximum ?-carotene equivalent (BCE) value was found in ?-apo-8'-carotenoic acid ethyl ester. The maximum Hunter L value was found in the control and lutein. The maximum Hunter a value was found in paprika meal. The maximum Hunter …


The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In Yellow Corn Diets, Figen Kirkpinar, Ramazan Erkek Jan 1999

The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In Yellow Corn Diets, Figen Kirkpinar, Ramazan Erkek

Turkish Journal of Veterinary & Animal Sciences

The study was carried out to investigate the effect of lutein, alfalfa meal, marigold meal, paprika meal, \beta-apo-8'-carotenoic acit ethyl ester, canthaxanthin and \beta -apo-8'-carotenoic acit ethyl ester+canthaxanthin in addition to 60% yellow corn diets on egg yolk pigmentation and production. Paprika meal showed the maximum Roche color fan value (RCF). \beta -apo-8'-carotenoic acit ethyl ester, alfalfa meal and marigold meal showed the highest \beta -carotene equivalents value (BCE). The maximum Hunter L value was found in the control group. Paprika meal showed the maximum Hunter a value. Lutein had the highest Hunter b value (P0.01).