scholarly journals Effect of background color on the growth pattern and coloration of guppy (Poecilia reticulata)

2021 ◽  
Vol 33 (1) ◽  
pp. 13-20
Author(s):  
ADITI BARUA ◽  
SAIFUDDIN RANA ◽  
FARHANA ISLAM SHAWON ◽  
MASUMA KHANOM MUNTAHA ◽  
SK. ISTIAQUE AHMED ◽  
...  
Keyword(s):  
Growth Performance ◽  
Significant Influence ◽  
Poecilia Reticulata ◽  
Skin Pigmentation ◽  
Background Color ◽  
Fish Skin ◽  
Red Color ◽  
Green Background ◽  
Guppy Fish ◽  
Orange Color

A study was carried out to investigate the effects of background color on the growth, skin pigmentation and breeding performances of guppy, Poecilia reticulata. Guppy fish was reared in tanks with four different colors as treatments such as T0 (transparent), T1 (red), T3 (blue) and T4 (green) for 5 months. There were significant differences in growth and coloration among the treatments. The growth performance was found significantly higher in transparent background compared to the other treatments. The results showed that the highest mean weight (0.259 ±0.018 g), mean length (3.067±0.208 cm) and SGR (0.165±0.012) of the fish were significantly higher in T0. Least mean weight (0.167± 0.025 g), mean length (2.53±.0.058 cm) and SGR (0.104±0.017) were observed in T1 indicating association of red color with slower growth performance of guppy, compared to other treatments. Study showed significant influence of background color in skin pigmentation. Fishes reared in transparent tanks showed the highest value of carotenoid (0.00175±0.00004mg/g) and fishes reared in the red tank showed the lowest value of carotenoid (0.00092±0.000035 mg/g). Green background enhanced red orange color on fish skin and provided high amount of carotenoid value (0.00143±0.000046 mg/g) than that with blue (0.00095±0.000025 mg/g). These results suggest significant influence of background color on growth and skin pigmentation patterns of Guppy.

scholarly journals Mucosal Immune Responses and Total Carotenoid Content of Juvenile Male Guppy Fish (Poecilia Reticulata) Fed With Different Herbal Supplements ​

2021 ◽  
Author(s):  
Seyed Nesa Mousavi ◽  
Hamid Mohammadiazarm ◽  
Fatemeh Azadbakht
Keyword(s):  
Growth Performance ◽  
Poecilia Reticulata ◽  
Red Pepper ◽  
Carotenoid Content ◽  
Total Carotenoid ◽  
Herbal Supplements ◽  
Total Carotenoids ◽  
Immunological Parameters ◽  
Total Carotenoid Content ◽  
Guppy Fish

Abstract In this experiment, the influences of dietary garlic, onion, and sweet red pepper meals as herbal supplements were studied on some immunological parameters, total carotenoid content, and growth performance of male guppy fish (Poecilia reticulata) in the juvenile stage. The experimental diets were fed to fish as a control (0), and three other diets contained 20 g kg− 1 garlic, or 20 g kg− 1 red onion, and or 20 g kg− 1 sweet red pepper powders. The male guppies with the early weight of 0.642g ± 0.07 were stocked in twelve circular tanks (40 L capacity) at density of 30 fish per tank. Fish were fed to satiation the diets thrice daily. The results showed that dietary herbal additives induced a significant increase (P < 0.05) in some mucosal immunological parameters contained alternative complement (ACH50), total immunoglobulin (Ig), lysozyme, and total protein compared to control, which were the highest in the group with 20 g kg− 1 garlic powder. Also, various dietary herbal additives resulted in higher (P < 0.05) total carotenoids levels of lateral skin body and caudal fin of fish than control, which were the highest in the group with 20 g kg− 1 sweet red pepper. The growth performance and feeding indices enhanced significantly (P < 0.05) in experimental groups compared to the control. As a result, used herbal supplements had beneficial effects on immunological parameters and total carotenoid content of fish. So, the highest immunity and coloration was obtained separately at 20 g kg− 1 respectively with garlic and sweet red pepper meals.

Organoleptic, Bacterial, and Chemical Characteristics of Penaeid Shrimp Subjected to Short-Term High-Temperature Holding

1977 ◽  
Vol 40 (4) ◽  
pp. 256-260 ◽  
Author(s):  
BRYANT F. COBB ◽  
CHIAPING S. YEH ◽  
FRANK CHRISTOPHER ◽  
CARL VANDERZANT
Keyword(s):  
Storage Temperature ◽  
Penaeid Shrimp ◽  
Enzymic Activity ◽  
White Shrimp ◽  
Short Term ◽  
Color Development ◽  
Red Color ◽  
Penaeus Setiferus ◽  
Urea Production ◽  
Orange Color

White shrimp (Penaeus setiferus) were held at 0, 10, 20, 30, 37, and 44 C for 3, 6, and 24 h. Serious quality deterioration, as evidenced by off-color development (red and orange pigmentation) and off-odor development, was beginning to occur in shrimp held for 3 h at 30, 37, and 44 C, for 6 h at 20 C and for 24 h at 10 C. Red color development was evident in shrimp held at 30 and 37 C, orange color in those held at 44 C. Putrid odors appeared more rapidly in shrimp held at 37 than at 44 C where shrimp developed cooked-shrimp odors. Large increases in bacterial counts at 30–44 C (after 6 and 24 h) were usually accompanied by putrid odors. Tissue pH changes were erratic and small. Total volatile nitrogen (TVN), free amino acid nitrogen (AA-N), and urea production increased with storage temperature during the 3- and 6-h storage experiments. Musty and cooked-shrimp off-odors developed in the shrimp as a result of chemical and/or enzymic activity while putrid and sour odors were produced by bacteria growing in the shrimp.

Effects of photoperiod on growth performance and melanogenesis pathway for skin pigmentation of Malaysian red tilapia

2020 ◽  
Vol 51 (5) ◽  
pp. 1824-1833
Author(s):  
Atuganile Malambugi ◽  
Zhenzhen Yu ◽  
Wenbin Zhu ◽  
Lanmei Wang ◽  
Feibiao Song ◽  
...  
Keyword(s):  
Growth Performance ◽  
Skin Pigmentation ◽  
Red Tilapia

scholarly journals Alternatives to increase the red color of the peel in ‘Daiane’ and ‘Venice’ apples

2019 ◽  
Vol 41 (2) ◽  
Author(s):  
Cristhian Leonardo Fenili ◽  
José Luiz Petri ◽  
Cristiano André Steffens ◽  
Mariuccia Schlichting de Martin ◽  
Cassandro Vidal Talamini do Amarante ◽  
...  
Keyword(s):  
Ethylene Production ◽  
Anthocyanin Content ◽  
Background Color ◽  
Color Intensity ◽  
Foliar Fertilizer ◽  
Red Color ◽  
Ethephon Treatment ◽  
Apple Peels ◽  
Red Coloration

Abstract This study aimed evaluate the effect of biostimulants, foliar fertilizers and ethephon on the red color in the peel of ‘Daiane’ and ‘Venice’ apples. The experiments were conducted in Caçador/SC, during 2015/2016 and 2016/2017 seasons. In 2015/2016, the treatments were: Control; Biostimulant I; Foliar fertilizer I + Foliar fertilizer II; Biostimulant II and KCl. In 2016/2017, was included the Ethephon treatment. In 2016/2017, Biostimulant I, Foliar fertilizer I + Foliar fertilizer II and Biostimulant II increased the percentage of ‘Daiane’ and ‘Venice’ apples with greater red peel cover, without affecting the quality and maturity of the fruits. In both cultivars, ethephon was treatment that promoted a higher percentage of apples in the category above 80% of red color. Ethephon increased red color intensity of ‘Daiane’ and ‘Venice’ apples, anthocyanin content, starch index, ethylene production and yellowing of background color of the fruits. The red coloration of ‘Venice’ apple peels is enhanced with ethephon, Biostimulant I and Foliar fertilizer I + Foliar fertilizer II and Daiane apples with ethephon, Foliar fertilizer I + Foliar fertilizer II and Biostimulant II.

The Use of Natural Carotenoids and Growth Performance, Skin Pigmentation, and Immune Response in Fancy Carp (Cyprinus carpio)

2010 ◽  
Vol 22 (3) ◽  
pp. 267-283 ◽  
Author(s):  
Bundit Yuangsoi ◽  
Orapint Jintasataporn ◽  
Nontavit Areechon ◽  
Prathak Tabthipwon
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Cyprinus Carpio ◽  
Skin Pigmentation ◽  
Carp Cyprinus Carpio

scholarly journals DNA Barcoding: A Study of Guppy Fish (Poecilia reticulata) in East Java, Indonesia

2019 ◽  
Vol 11 (2) ◽  
pp. 272-278
Author(s):  
Sucipto Hariyanto ◽  
Hasan Adro’i ◽  
Mahrus Ali ◽  
Bambang Irawan
Keyword(s):  
Dna Barcoding ◽  
Fish Species ◽  
Dna Sequences ◽  
Poecilia Reticulata ◽  
Phylogenetic Reconstruction ◽  
Coi Gene ◽  
West Java ◽  
Advance Research ◽  
Phylogeny And Evolution ◽  
Guppy Fish

Poecilia reticulata is a freshwater fish from the northeastern part of South America and spread widely to various countries in Asia and other continents. However, research about P. reticulate is limited even though it is a well-known fish species in Indonesia. The purpose of study was to identify the fish species of P. reticulata through DNA barcoding using the COI gene to determine the phylogenetic relationships among fish populations in East Java, Indonesia. In a present study, there were eight samples of P. reticulata from four different freshwater locations in East Java. Extraction, amplification, and sequencing of DNA samples were conducted to obtain the genetic data and construct a phylogenetic tree based on DNA sequences. The COI gene is the most popular markers to study genetic populations and phylogeography among the animal kingdom. Our phylogenetic reconstruction showed a clear that there were two groups of P. reticulata. The first group was obtain through species from East Java, Sukabumi, West Java (KU692776.1), Dominican Republic, Pandeglang, Banten and Myanmar. The second group was P. reticulata from southern Africa, Brazil, and Sukabumi, West Java (KU692775.1). The result of this study indicate that the guppy fish in East Java identic with P. reticulata from West Java (KU692776.1), which a widely used in classification based on evolutionary relationships. The findings of this study have important implication for the development of advance research about adaptation, phylogeny, and evolution of fish, especially of guppy fish.

scholarly journals Effect of Different Dietary Protein Levels on Survival Rate and Growth Per-formance of Guppy (Poecilia reticulata)

2021 ◽  
Vol 36 (2) ◽  
pp. 175-181
Author(s):  
Abdalbast H. Fadel ◽  
Awad J. Lamin ◽  
Randa Rajab Ali ◽  
Karema A. Momen
Keyword(s):  
Survival Rate ◽  
Dietary Protein ◽  
Crude Protein ◽  
Growth Response ◽  
Poecilia Reticulata ◽  
Specific Growth ◽  
Protein Levels ◽  
Significant Difference ◽  
Guppy Fish ◽  
Density Rate

This study was carried out to evaluate the growth response of guppy Poecilia reticulata to different dietary protein levels. A total of 72 fry of guppy fish of an initial body weight 0.365± 0.01g were distributed randomly into 60 L aquaria at the density rate of 0.05 g/L. Fish were fed to satiation twice daily for eight weeks with diets containing different dietary protein levels (20%, 30%, or 40%.). The survival rate of guppy was unaffected by increasing dietary protein levels. At the end of the experiment, weight gains (g) ranging from 1.93 to 3.55 were obtained corresponding to 20% and 40% crude protein respectively. The growth performance and feeding efficiencies were significantly improved (P < 0.05) by increasing dietary protein levels. However, no significant difference (P > 0.05) was observed in the specific growth rate of fish that were fed 20% and 30% dietary protein levels. The value of the condition factor was significantly high in fish fed at 40% dietary protein. It can be concluded that a 40% dietary protein level is recommended for guppy fish.

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