scholarly journals Optimal rearing medium for the population growth of the predatory mite, Amblyseius swirskii (Athias-Henriot) (Acari: Phytoseiidae)

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Phyu Phyu San ◽  
Midori Tuda ◽  
Kengo Nakahira ◽  
Masami Takagi
Keyword(s):  
Population Growth ◽  
Predatory Mite ◽  
Baker’S Yeast ◽  
Main Body ◽  
Baker's Yeast ◽  
Amblyseius Swirskii ◽  
Brown Sugar ◽  
Control Programs ◽  
Relative Moisture ◽  
Dried Fruit

Abstract Background The successful rearing of predators or parasitoids is one of the most important elements in biological control programs. The dried fruit mite, Carpoglyphus lactis (L.), can be used as an alternative prey for the phytoseiid predatory mite, Amblyseius swirs0kii (Athias-Henriot). Main body This study aimed to evaluate the suitability of 3 different diets for C. lactis when rearing A. swirskii: brown sugar, baker’s yeast, and the mixture of brown sugar and baker’s yeast along with 3 initial predator:prey ratios (1:7, 1:12, and 1:20). After 30 days, both the baker’s yeast and the mixture of brown sugar + baker’s yeast diets resulted in the highest predator densities (40.5 times increase at an initial predator:prey ratio of 1:20, with the baker’s yeast diet), whereas the mixture diet produced the highest density of prey. The brown sugar resulted in the lowest number of predator and prey mites. This may be due to lower feeding and predation rates of the prey and the predator mites on the brown sugar medium since its relative moisture content and adhesiveness inhibits mite movement. The final predator:prey ratio was also highest on the baker’s yeast diet. Conclusions This study demonstrated that the population growth of A. swirskii was the highest when C. lactis was reared on baker’s yeast.

scholarly journals Effect of Combination Yeast Bread and Chlorella sp. to Population Growth and Protein Content of Brachionus plicatilis

2020 ◽  
Vol 8 (1) ◽  
pp. 26
Author(s):  
Ike Yunita Indra Swari ◽  
Boedi Setya Rahardja ◽  
Prayogo Prayogo
Keyword(s):  
Population Growth ◽  
Protein Content ◽  
Brachionus Plicatilis ◽  
Skeletonema Costatum ◽  
Baker’S Yeast ◽  
Quality Data ◽  
Baker's Yeast ◽  
Water Quality Data ◽  
Chlorella Sp ◽  
Randomized Design

One of larvae feed can be used is Brachionus plicatilis but necessary an enrichment for review adding nutritional values of the Brachionus plicatilis. Some phytoplankton frequently used type food by Brachionus plicatilis between lay Tetraselmis sp., Skeletonema costatum, Chlorella sp., Dunaliella salina and Spirulina sp. (Isnansetyo And Kurniastuty, 1995). In this time, many parlors seed microalgae replace with yeast bread, beside that yeast bread serves as a probiotic too (Winasuria, 1993). This study aims to determine the effect feeding review form a combination of yeast bread and Chlorella sp. against population growth and protein content of Brachionus plicatilis. The research method used is an experimental method with completely randomized design as design of Experiments. The treatment used is a combination of yeast and Chlorella sp. with different period, that was treatment A (Chlorella sp. 100%), treatment B (Chlorella sp. 25% and 75% baker's yeast), treatment C (Chlorella sp. 50% and 50 % of baker's yeast), treatment D (Chlorella sp. 75% and 25% baker's yeast), each treatment was repeated 5 times. The main parameter observed is population growth, growth rate and protein content. The supporting parameters observed parameter is water quality. Data analysis using variant analysis (ANOVA) and to review the best treatment, Duncan's Multiple Range Test performed. Results Provision combination of baker's yeast and Chlorella sp. with term certain showed significant differences (p<0,05) against population growth Brachionus plicatilis. The highest population growth are in treatment D  and the lowest are in treatment B. For a review feeding of Brachionus plicatilis preferably using Chlorella sp. with 1,125x106 density cells / ml and 0,0005 grams of baker's yeast.

scholarly journals PENGARUH PEMBERIAN RAGI ROTI DENGAN DOSIS YANG BERBEDA TERHADAP PERTUMBUHAN POPULASI Brachionus plicatilis

2018 ◽  
Vol 15 (2) ◽  
Author(s):  
Iksan, Muhammad Junaidi Dan Alis Mukhlis
Keyword(s):  
Population Density ◽  
Population Growth ◽  
Brachionus Plicatilis ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Yeast Population ◽  
Randomized Design ◽  
Key Word ◽  
Completely Randomized Design ◽  
The Difference

ABSTRAKThis study aims to determine the best dose of bakers yeast in culture Brachionus plicatilis. The research was conducted in July-September 2015 in the Mandiri Laboratory of BTN Puri Meninting West Lombok District. This experiment  uses a completely randomized design ( CRD ), which consists of 6 treatments and repeated 3 times , in order to obtain 18 units of trial that treatment A : without feed , treatment B : feed Nannochloropsis spp., treatment C : 7.5 mg/L, treatment D : 15.0 mg/L , treatment E : 22.5 mg/L , and treatment F : 30.0 mg/L. The results showed that the difference in the level of baker's yeast significantly affect the population growth of Brachionus plicatilis, which obtained the highest population density in the yeast dose of 30.0 mg/L of 90 individuals/mL Key word : bakers yeast, population growth, Brachionus plicatilisABSTRACT Penelitian ini bertujuan untuk mengetahui dosis ragi roti yang terbaik  dalam kultur Brachionus plicatilis. Penelitian dilaksanakan pada bulan Juli - September 2015  di Laboratorium Mandiri BTN Puri Meninting Kabupaten Lombok Barat. Penelitian ini menggunakan  Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan diulang sebanyak 3 kali, sehingga diperoleh 18 unit percobaan yaitu  perlakuan  A : tanpa pakan, perlakuan  B : pakan Nannochloropsis spp.,  perlakuan C : 7,5 mg/L, perlakuan D : 15,0 mg/L, perlakuan  E :  22,5 mg/L,  dan perlakuan  F : 30,0 mg/L. Hasil penelitian menunjukan bahwa perbedaan dosis ragi roti berpengaruh nyata terhadap pertumbuhan populasi Brachionus plicatilis, dimana kepadatan populasi tertinggi diperoleh pada dosis ragi 30,0 mg/L yaitu 90 individu/mL Kata kunci : ragi roti, pertumbuhan populasi,  Brachionus plicatilis,

scholarly journals Pengaruh Pemberian Ragi Roti dengan Dosis yang Berbeda Terhadap Pertumbuhan Populasi Brachionus Plicatilis

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Iksan, Muhammad Junaidi Dan Alis Mukhlis
Keyword(s):  
Population Density ◽  
Population Growth ◽  
Brachionus Plicatilis ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Yeast Population ◽  
Randomized Design ◽  
Key Word ◽  
Completely Randomized Design ◽  
The Difference

ABSTRAKPenelitian ini bertujuan untuk mengetahui dosis ragi roti yang terbaik  dalam kultur Brachionus plicatilis. Penelitian dilaksanakan pada bulan Juli - September 2015  di Laboratorium Mandiri BTN Puri Meninting Kabupaten Lombok Barat. Penelitian ini menggunakan  Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan diulang sebanyak 3 kali, sehingga diperoleh 18 unit percobaan yaitu  perlakuan  A : tanpa pakan, perlakuan  B : pakan Nannochloropsis spp.,  perlakuan C : 7,5 mg/L, perlakuan D : 15,0 mg/L, perlakuan  E :  22,5 mg/L,  dan perlakuan  F : 30,0 mg/L. Hasil penelitian menunjukan bahwa perbedaan dosis ragi roti berpengaruh nyata terhadap pertumbuhan populasi Brachionus plicatilis, dimana kepadatan populasi tertinggi diperoleh pada dosis ragi 30,0 mg/L yaitu 90 individu/mL Kata kunci : ragi roti, pertumbuhan populasi,  Brachionus plicatilis, ABSTRACT This study aims to determine the best dose of bakers yeast in culture Brachionus plicatilis. The research was conducted in July-September 2015 in the Mandiri Laboratory of BTN Puri Meninting West Lombok District. This experiment  uses a completely randomized design ( CRD ), which consists of 6 treatments and repeated 3 times , in order to obtain 18 units of trial that treatment A : without feed , treatment B : feed Nannochloropsis spp., treatment C : 7.5 mg/L, treatment D : 15.0 mg/L , treatment E : 22.5 mg/L , and treatment F : 30.0 mg/L. The results showed that the difference in the level of baker's yeast significantly affect the population growth of Brachionus plicatilis, which obtained the highest population density in the yeast dose of 30.0 mg/L of 90 individuals/mL Key word : bakers yeast, population growth, Brachionus plicatilis

scholarly journals PENGARUH PEMBERIAN RAGI ROTI DENGAN DOSIS YANG BERBEDA TERHADAP PERTUMBUHAN POPULASI Brachionus plicatilis

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Iksan, Muhammad Junaidi Dan Alis Mukhlis
Keyword(s):  
Population Growth ◽  
Brachionus Plicatilis ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Yeast Population ◽  
The Difference

ABSTRAKThis study aims to determine the best dose of bakers yeast in culture Brachionusplicatilis. The research was conducted in July-September 2015 in the Mandiri Laboratory ofBTN Puri Meninting West Lombok District. This experiment uses a completely randomizeddesign ( CRD ), which consists of 6 treatments and repeated 3 times , in order to obtain 18units of trial that treatment A : without feed , treatment B : feed Nannochloropsis spp.,treatment C : 7.5 mg/L, treatment D : 15.0 mg/L , treatment E : 22.5 mg/L , and treatment F :30.0 mg/L. The results showed that the difference in the level of baker's yeast significantlyaffect the population growth of Brachionus plicatilis, which obtained the highest populationdensity in the yeast dose of 30.0 mg/L of 90 individuals/mLKey word : bakers yeast, population growth, Brachionus plicatilisABSTRACTPenelitian ini bertujuan untuk mengetahui dosis ragi roti yang terbaik dalam kulturBrachionus plicatilis. Penelitian dilaksanakan pada bulan Juli - September 2015 diLaboratorium Mandiri BTN Puri Meninting Kabupaten Lombok Barat. Penelitian inimenggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan diulangsebanyak 3 kali, sehingga diperoleh 18 unit percobaan yaitu perlakuan A : tanpa pakan,perlakuan B : pakan Nannochloropsis spp., perlakuan C : 7,5 mg/L, perlakuan D : 15,0mg/L, perlakuan E : 22,5 mg/L, dan perlakuan F : 30,0 mg/L. Hasil penelitian menunjukanbahwa perbedaan dosis ragi roti berpengaruh nyata terhadap pertumbuhan populasiBrachionus plicatilis, dimana kepadatan populasi tertinggi diperoleh pada dosis ragi 30,0mg/L yaitu 90 individu/mLKata kunci : ragi roti, pertumbuhan populasi, Brachionus plicatilis,

scholarly journals PENGARUH PEMBERIAN RAGI ROTI DENGAN DOSIS YANG BERBEDA TERHADAP PERTUMBUHAN POPULASI Brachionus plicatilis

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Iksan, Muhammad Junaidi Dan Alis Mukhlis
Keyword(s):  
Population Density ◽  
Population Growth ◽  
Brachionus Plicatilis ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Yeast Population ◽  
Randomized Design ◽  
Key Word ◽  
Completely Randomized Design ◽  
The Difference

ABSTRACT This study aims to determine the best dose of bakers yeast in culture Brachionus plicatilis. The research was conducted in July-September 2015 in the Mandiri Laboratory of BTN Puri Meninting West Lombok District. This experiment  uses a completely randomized design ( CRD ), which consists of 6 treatments and repeated 3 times , in order to obtain 18 units of trial that treatment A : without feed , treatment B : feed Nannochloropsis spp., treatment C : 7.5 mg/L, treatment D : 15.0 mg/L , treatment E : 22.5 mg/L , and treatment F : 30.0 mg/L. The results showed that the difference in the level of baker's yeast significantly affect the population growth of Brachionus plicatilis, which obtained the highest population density in the yeast dose of 30.0 mg/L of 90 individuals/mL Key word : bakers yeast, population growth, Brachionus plicatilis ABSTRAKPenelitian ini bertujuan untuk mengetahui dosis ragi roti yang terbaik  dalam kultur Brachionus plicatilis. Penelitian dilaksanakan pada bulan Juli - September 2015  di Laboratorium Mandiri BTN Puri Meninting Kabupaten Lombok Barat. Penelitian ini menggunakan  Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan diulang sebanyak 3 kali, sehingga diperoleh 18 unit percobaan yaitu  perlakuan  A : tanpa pakan, perlakuan  B : pakan Nannochloropsis spp.,  perlakuan C : 7,5 mg/L, perlakuan D : 15,0 mg/L, perlakuan  E :  22,5 mg/L,  dan perlakuan  F : 30,0 mg/L. Hasil penelitian menunjukan bahwa perbedaan dosis ragi roti berpengaruh nyata terhadap pertumbuhan populasi Brachionus plicatilis, dimana kepadatan populasi tertinggi diperoleh pada dosis ragi 30,0 mg/L yaitu 90 individu/mL Kata kunci : ragi roti, pertumbuhan populasi,  Brachionus plicatilis, 

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