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Ali Reza Noroozi Sharaf,Yousef Hamidoghli,Hedayat Zakizadeh 한국원예학회 2011 Horticulture, Environment, and Biotechnology Vol.52 No.3
Primula heterochroma is a scarce and endemic plant to the north of Iran. The aim of the present study is to establish an efficient and reproducible protocol for in vitro propagation from shoot tips. Native seeds were exposed to different treatments. Germination results showed that the scarification of seeds had significant effects on the germination delay and germination percentage compared to plant growth regulator treatments. Afterwards, the seedling-derived shoot tips were cultured on several Murashige and Skoog basal medium, containing various concentrations of 6-benzylaminopurine (BA) or thidiazuron (TDZ) in combination with various concentrations of 1-naphthaleneacetic acid (NAA). The result showed that the highest shoot regeneration, and the number and length of leaves were noticeably affected by media enriched with 1 mg・L^(-l) BA + 0.4 mg・L^(-l) NAA and 0.2 mg・L^(-l) TDZ + 0.4 mg・L^(-1) NAA. Root parameters significantly affected by media enriched with 1 mg・L^(-1) BA + 0.8 mg・L^(-1) NAA and 0.4 mg・L^(-1) TDZ + 0.8 mg・L^(-1) NAA. Plantlets were hardened-off and transferred to soil for further growth.
배진호,ALI HAMIDOGHLI,Marouane Sad Djaballah,Salha Maamri,Ayoub Hamdi,Ismail Souffi,Nathaniel Wesley Farris,배승철 한국수산과학회 2020 Fisheries and Aquatic Sciences Vol.23 No.1
Background: As the cost of fishmeal continues to rise, there will be a need to optimize the diet by minimizing dietary fishmeal inclusion in aquafeed. In this study, a 7-week experiment was conducted to evaluate soybean meal, fermented soybean meal (soytide), and sesame meal as fishmeal replacers in whiteleg shrimp, Litopenaeus vannamei. Methods: A 30%-based fishmeal diet was considered as control (CON), six other diets were prepared by replacing 20% or 40% of fishmeal with soybean meal (SB20 and SB40), fermented soybean meal (ST20 and ST40), or sesame meal (SM20 and SM40) from the CON diet. Twenty shrimp with average initial weight of 0.65 ± 0.05 g (mean ± SD) were randomly distributed into 21 tanks (45 L) and fed four times a day. Water temperature was controlled at 28 ± 1 °C and aeration was provided by air stones. Results: Weight gain, specific growth rate, feed efficiency, and protein efficiency ratio of shrimp fed CON showed no significant differences compared to shrimp fed all the other diets. However, growth performance of shrimp fed ST20 diet was significantly higher than those of shrimp fed the SM20 and SM40 diets (P < 0.05). Superoxide dismutase activity (SOD) of shrimp fed CON, ST20, and ST40 diets was significantly higher than those of shrimp fed the SB40 and SM40 diets. But there were no significant differences among shrimp fed CON, SB20, ST20, ST40, and SM20 diets. Also, lysozyme activity of shrimp fed ST20 diet was significantly higher than those of shrimp fed the SB40 and SM40 diets. Although, lysozyme activity of shrimp fed the CON diet was not significantly different compared to shrimp fed all the other experimental diets. Conclusions: Therefore, SB, ST, and SM could replace 40% of fishmeal based on growth performance and lysozyme. According to the SOD activity, SB and SM could replace 20% of fishmeal and ST could replace 40% of fishmeal in juvenile whiteleg shrimp Litopenaeus vannamei.
Wonsuk Choi,ALI HAMIDOGHLI,배진호,Seonghun Won,최윤희,김강웅,이봉주,허상우,한현섭,배승철 한국수산과학회 2020 Fisheries and Aquatic Sciences Vol.23 No.3
Background: High demand and low supply of fishmeal due to overexploitation of fisheries resources have resulted in a dramatic increase in the price of this ingredient. Olive flounder (Paralichthys olivaceus) commercial feed contains approximately 60% fishmeal and limited success has been achieved in identifying sustainable alternative protein sources for this species. Methods: An on-farm feeding trial was conducted to compare a basal diet containing 65% as the control (CONT) with two experimental diets replacing 10% of fishmeal by animal protein (AP10) or 20% of fishmeal by animal and plant protein (APP20). Sub-adult olive flounder averaging 327 ± 9.3 g (mean±SD) were fed one of the three diets in triplicate groups for 16 weeks. Results: Weight gain, specific growth rate, feed efficiency, protein efficiency ratio, and survival were not significantly different among fish fed all the experimental diets (P > 0.05). Also, non-specific immune responses (superoxide dismutase and lysozyme activity), serum biochemical parameters, and intestinal villi length were not significantly different among fish fed all the experimental diets (P > 0.05). Conclusions: Therefore, based on growth performance, non-specific immune responses, serum biochemical parameters, and intestinal histology, dietary animal and plant protein mixtures could replace up to 20% of fishmeal in the diet of sub-adult olive flounder.
Choi, Wonsuk,Hamidoghli, Ali,Bae, Jinho,Won, Seonghun,Choi, Youn Hee,Kim, Kang-Woong,Lee, Bong-Joo,Hur, Sang-Woo,Han, Hyonsob,Bai, Sungchul C. The Korean Society of Fisheries and Aquatic Scienc 2020 Fisheries and Aquatic Sciences Vol.23 No.8
Background: High demand and low supply of fishmeal due to overexploitation of fisheries resources have resulted in a dramatic increase in the price of this ingredient. Olive flounder (Paralichthys olivaceus) commercial feed contains approximately 60% fishmeal and limited success has been achieved in identifying sustainable alternative protein sources for this species. Methods: An on-farm feeding trial was conducted to compare a basal diet containing 65% as the control (CONT) with two experimental diets replacing 10% of fishmeal by animal protein (AP<sub>10</sub>) or 20% of fishmeal by animal and plant protein (APP<sub>20</sub>). Sub-adult olive flounder averaging 327 ± 9.3 g (mean±SD) were fed one of the three diets in triplicate groups for 16 weeks. Results: Weight gain, specific growth rate, feed efficiency, protein efficiency ratio, and survival were not significantly different among fish fed all the experimental diets (P > 0.05). Also, non-specific immune responses (superoxide dismutase and lysozyme activity), serum biochemical parameters, and intestinal villi length were not significantly different among fish fed all the experimental diets (P > 0.05). Conclusions: Therefore, based on growth performance, non-specific immune responses, serum biochemical parameters, and intestinal histology, dietary animal and plant protein mixtures could replace up to 20% of fishmeal in the diet of sub-adult olive flounder.