Genetic, Environmental, and Interaction Effects on Growth and Stress Response of Chinook Salmon (Oncorhynchus tshawytscha) Fry

1993 ◽  
Vol 50 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Daniel D. Heath ◽  
Nicholas J. Bernier ◽  
John W. Heath ◽  
George K. Iwama
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Plasma Glucose ◽  
Chinook Salmon ◽  
Plasma Cortisol ◽  
Oncorhynchus Tshawytscha ◽  
Genotype By Environment Interactions ◽  
Relative Growth ◽  
Genotype By Environment ◽  
Wet Weight

Eight full- and half-sib families of chinook salmon (Oncorhynchus tshawytscha) were held during egg development at two temperatures (8.0 and 10.2 °C). As fry, these families were measured for relative growth rate, initial and final wet weight, hematocrit values before and 2 h after a 30-s handling stress, and plasma cortisol and glucose concentrations before and after stress. Significant sire effects were found for all measured traits, and significant dam effects were found for all traits except for the poststress increases in cortisol concentrations. There were significant genotype-by-environment interactions for all traits except unstressed (control) plasma glucose concentrations. Incubation temperature had a significant effect on relative growth rate and final wet weight only. We found a significant correlation between poststress plasma glucose concentration and relative growth rate for all fish, independent of family, while resting plasma cortisol concentration and poststress hematocrit correlated with wet weight only when analyzed within the eight individual families. Genetic contributions to stress-related parameters and genotype-by-environment interactions should be considered as a factor in stress-related research with fish.

scholarly journals PENGARUH PUPUK KASCING DAN NPK MUTIARA 16:16:16 TERHADAP PERTUMBUHAN SERTA HASIL TANAMAN SELEDRI (Apium graviolens L.)

2020 ◽  
Vol 34 (3) ◽  
pp. 275-286
Author(s):  
Yurnie Sari Alphiani ◽  
Zulkifli ◽  
Sulhaswardi
Keyword(s):  
Growth Rate ◽  
Plant Height ◽  
Relative Growth Rate ◽  
Growth And Yield ◽  
Observation Data ◽  
Root Volume ◽  
Volume Number ◽  
Relative Growth ◽  
Affected Plant ◽  
Wet Weight

ABSTRACT The purpose of this study is to determine the effect of interaction and the main influence of vermicompost and NPK Pearl 16:16:16 on the growth and yield of celery plants. This research was carried out for four months, from August to November 2018. This research used a factorial completely randomized design (RAL) consisting of two factors, where the first factor was vermicompost fertilizer (K) consisting of 4 levels, namely 0, 60, 80, 100 g / polybag and the second factor is NPK Pearl 16:16:16 (N) fertilizer consisting of 4 levels, 0, 0.8, 1.6, 2.4 g/polybag. The observation parameters in this study were plant height (cm), relative growth rate (g), root volume (cm3), number of tillers, number of midribs, wet weight of crop (g), and age of harvest (days). The last observation data were statistically analyzed and continued with a BNJ follow-up test at the 5% level. The results showed that the interaction between vermicompost and NPK Pearl 16:16:16 fertilizer significantly affected plant height from week two to week seven, the relative growth rate in the first week, root volume, number of tillers, number of fronds and wet weight per plant. The best treatment is K3N3 (K3 vermicompost fertilizer = 100 g /polybag and NPK Pearl 16:16:16 N3 = 2,4 g/polybag), but it has no significant effect on the age of harvest and the main effect of vermicompost and NPK Pearl 16:16: 16 significantly affected plant height, relative growth rate, root volume, number of tillers, number of midribs and wet weight of the crop, with the best treatment being K3 (vermicompost fertilizer 100 g/polybag) and N3 (NPK Pearl 16:16:16 2,4 g/polybag). Keywords: Celery, Vermicompost, NPK pearl 16:16:16

scholarly journals The effect of liquid organic plant supplements on aquaponic culture of red cabbage (Brassica oleraceae L. var. Capitata f. rubra DC.) and tilapia (Oreochromis niloticus L.)

2021 ◽  
Vol 912 (1) ◽  
pp. 012102
Author(s):  
Elimasni ◽  
N Nasution
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Noticeable Effect ◽  
Relative Growth ◽  
Red Cabbage ◽  
Randomized Design ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Food Needs ◽  
Fish Survival

Abstract Abstrak. Aquaponic cultivation is an innovation in the fulfillment of fish and vegetable food needs. The types of fish and vegetables that have not been widely cultivated in aquaponics are tilapia and red cabbage. The aims of this experiment is to provides information on the best concentration of plant liquid organic suplements for the maintenance of red cabbage and tilapia in this aquaponic system. These are commodity have a variety of advantages and high production so it is necessary to conduct an aquaponic assessment of tilapia and red cabbage using liquid organic supplements of plants. This research was conducted gradually, namely the preparation of red cabbage seeds and fish seeds, fermentation of water, acclimatition of fish and research treatment. The research design uses a completely randomized design with four treatments and five replays. The treatment used by giving of liquid organic supplement concentrations merk SOC plants that differ in the integrated aquaponic tarpaulin pond system is treatment1 (0 ml/l), treatment2 (2.5 ml/l), treatment3 (5 ml/l) and treatment4 (7.5 ml/l) with each pond as much as 25 fish/pond. Aquaponic watering technique using DFT (Deep Flow Technique). Variables of red cabbage include the morphometry of the red cabbage plant (height of the plant, number of leaves, and wet weight). Tilapia variables include relative growth rate and fish survival rate. The results showed that the treatment of the concentration of liquid organic supplements of plants had a noticeable effect on the height of the plant, the number of leaves and the wet weight. Data of tilapia research with aquaponic system using tepal ponds include the relative growth rate of tilapia ranging from 2.84 - 3.90%/day and tilapia survival ranges from 88-92%.

scholarly journals PENGARUH EKSTRAKSI BIJI DAN KOMBINASI MEDIA TANAM TERHADAP PENYEMAIAN LABAN (Vitex pinnata L. Kuntze)

2019 ◽  
Vol 12 (1) ◽  
pp. 89-95
Author(s):  
Hartina Hartina ◽  
Ratna Kusuma ◽  
Dwi Susanto
Keyword(s):  
Growth Rate ◽  
Plant Height ◽  
Relative Growth Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Leaf Number ◽  
Relative Growth ◽  
Seed Growth ◽  
Seed Extraction ◽  
Wet Weight

AbstrakPenyemaian laban dengan menggunakan metode ekstraksi biji belum banyak dilakukan dan perlu penambahan bahan pembenah tanah untuk meningkatkan pertumbuhan semai. Penelitian ini bertujuan untuk mengetahui pengaruh ekstraksi biji dan kombinasi media tanam terhadap penyemaian laban (Vitex pinnata L. Kuntze). Penelitian ini menggunakan rancangan acak lengkap dengan 2 faktor perlakuan yaitu ekstraksi biji (A0= ekstraksi basah dan A1= ekstraksi kering) dan kombinasi media tanam (M0= Tanah, M1= tanah + pasir, M2= tanah + kompos, M3= tanah + cocopeat), masing-masing diulang sebanyak 3 kali. Data yang diperoleh dianalisis dengan menggunakan uji varian (ANOVA) dengan taraf kepercayaan 95%, uji lanjut menggunakan uji Duncan pada taraf kepercayaan 95%. Hasil penelitian menunjukkan pada perlakuan ekstraksi biji kering dapat meningkatkan rata-rata persentase berkecambah sebesar 65,83% dan kecepatan tumbuh biji sebesar 3,25%, namun belum dapat meningkatkan pertambahan tinggi tanaman, jumlah daun, berat basah akhir, berat kering akhir dan laju pertumbuhan relatif. Kombinasi jenis media tanam tanah + kompos dapat meningkatkan persentase berkecambah sebesar 73,33% dan kecepatan tumbuh benih sebesar 3,40%. Penelitian ini sangat penting dalam penyiapan bibit siap tanam dalam budi daya V. pinnata.Abstract Seedling using seed extraction method has not been explored much and it needs to add soil enhancers to increase seedling growth. This research aims to determine the effect of seed extraction and combinations of planting media to seeding Laban (Vitex pinnata L. Kuntze). This research used a complete randomized design with two treatment factors namely seed extraction (A0= wet extraction, A1= dry extraction) and combinations of plant medium (M0= soil, M1= soil + sand, M2= soil + compost, M3= soil + cocopeat) were repeated three times each. The data were analyzed by using variance test (ANOVA) at 95% level of confidence and continued using Duncan test at 95% level of confidence. The result showed that the dry seed extract treatment increased the average of germination percentage by 65.83% and seed growth rate about 3.295% but could not increase plant height, leaf number, final wet weight, final dry weight dan relative growth rate. The combination of planting media  + compost increased the germination percentage by 73.33% and the seed growth about 3.40%, but not yet able to increase plant height, leaf number, final wet weight, final dry weight and relative growth rate of laban plant. This research is very important in preparing ready-to-plant seedlings in V. pinnata cultivation.

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