High growth performance in the early ontogeny of an amphidromous fish, Ayu Plecoglossus altivelis altivelis , promoted survival during a disastrous river spate

2021 ◽  
Author(s):  
Iki Murase ◽  
Kei’ichiro Iguchi
Keyword(s):  
Growth Performance ◽  
High Growth ◽  
Early Ontogeny ◽  
Plecoglossus Altivelis

DETERMINATION OF THE EFFICIENCY AND EFFICACY OF BIO-CHEMICAL FERTILIZER ON THE SOIL, YIELD AND GROWTH PERFORMANCE OF BLACK PEPPER (Piper nigrum L.)

2015 ◽  
Vol 4 (3) ◽  
pp. 460-468
Author(s):  
Yap Chin Ann
Keyword(s):  
Growth Performance ◽  
Nutrient Management ◽  
High Growth ◽  
Black Pepper ◽  
Chemical Fertilizer ◽  
Piper Nigrum ◽  
High Fertility ◽  
Fertility Level ◽  
Area Index ◽  
K 12

The last nutrient management review of black pepper was done in 1968. There is, therefore, a need to develop new technology to improve pepper production and transfer that technology to production site. This experiment was carried out to study the effect of newly developed biochemical fertilizer on some physiological characteristics, yield and soil fertility of pepper. The treatment consisted of T1 (BS): chemical fertilizer (N:12%, P:12%, K:17%); T2 (BK1): biochemical fertilizer F1 N:15%, P:5%, K:14) and T3 (BK2): biochemical fertilizer F2 (N:13%, P:4%, K:12). The biochemical fertilizer F1 out-yielded chemical and biochemical fertilizer F2 by 75.38% and 16.45% respectively with the higher yield being associated with various phonotypical alterations, which are reported here. Significant measureable changes were observed in physiological processes and plant characteristics, such as large leaf area index, more chlorophyll content and high photosynthesis rate coupled with lower transpiration rate in biochemical fertilizer F1(BK1) treatment compared with other treatment. The high fertility level in biochemical fertilizer F1 and biochemical fertilizer F2 (BK2) reflected the important of organic material in improving soil quality. In conclusion, the achieve high growth performance and yield in pepper, chemical fertilizer alone is insufficient whilst combination of organic and inorganic fertilizer with balance nutrient content gave a significant increase in yield and growth of pepper. 

scholarly journals The comparatives of growth and carcass performance of the Thai native chicken between economic selection (Chee KKU12) and natural selection (Chee N)

2020 ◽  
Vol 19 (2) ◽  
pp. 247-257
Author(s):  
Doungnapa Promket ◽  
◽  
Khanitta Ruangwittayanusorn ◽  
Keyword(s):  
Natural Selection ◽  
Growth Performance ◽  
Genetic Selection ◽  
High Growth ◽  
Carcass Composition ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Economic Traits ◽  
Native Chicken ◽  
Carcass Performance

Chee is 1 of 4 important native chicken breed in Thailand. Genetic selection can be used to improve growth and carcass performance. The objective of this study was to compare growth and carcass performance of native chickens (Chee) with a population selected for economic traits (Chee KKU12) and natural selection (Chee N). Two hundred Chee KKU12 and Chee N chickens were divided into 5 replicates, 20 chickens per replication. Record growth and carcass quality for data analysis. The results showed that at 12 weeks of age, Chee KKU12 chickens (1,279.484 g) had a higher body weight than did Chee N chickens (1,180.212 g). The averages daily weight gain at 4-6, 6-8, and 0-12 weeks of age of Chee KKU12 chicken (17.861,19.230, and 14.843 grams) was higher than Chee N chickens (16.284, 17.497, and 13.668 g) (P<0.05). The carcass quality with mixed gender showed that Chee KKU12 chickens had higher breast (20.859%) and abdominal fat (0.659%) than Chee N chicken (19.585% and 0.217%, respectively) (P<0.05), but Chee KKU12 chicken thigh (17.007%) was significantly lower than Chee N chickens (18.627%). Regression analysis revealed that the selection of Chee KKU12 chickens for gain in weight will result in better carcass composition including wing (0.074 g), breast (0.089 g), and drumstick (0.134 g), while Chee N chicken had better thigh (0.189 g) when selected for high growth performance (P<0.05). It was concluded that chicken population selected for economic traits has a better growth performance in open housing conditions than naturally selected chickens.

Analysis of the impacts of entrepreneurship training on growth performance of firms

2018 ◽  
Vol 10 (3) ◽  
pp. 524-542 ◽  
Author(s):  
Uchenna Efobi ◽  
Emmanuel Orkoh
Keyword(s):  
Growth Performance ◽  
Design Methodology ◽  
High Growth ◽  
Entrepreneurship Training ◽  
Content Type ◽  
The World Bank ◽  
Matching Technique ◽  
Quasi Experimental ◽  
The Difference ◽  
National Business

Purpose Using quasi-experimental designs, the purpose of this paper is to study the effects of training entrepreneurs and such entrepreneurs going ahead to retrain its workers on the business high-growth performance. Design/methodology/approach This paper used a unique evaluation data from the National Business Plan Competition in Nigeria, organized by the Nigerian government in collaboration with the World Bank. The data was analyzed using the Propensity Score Matching technique and complemented with the Difference-in-Difference estimates. Findings The authors find from the estimation of this paper that those entrepreneurs who received standard evaluation training and goes ahead to retrain its workers experienced an expansion in the number of employees by two persons, an increase in innovation index by about 3 units. An increase in revenue is also observed, but this increase was not significant at the 1, 5 or 10 per cent levels. Originality/value This paper presents an interesting view point on how training within an entrepreneurial venture should be viewed as a ‘two sided coin’. This is such that training the entrepreneur is one side of the story, and the entrepreneur retraining its workers is another important side of the story.

scholarly journals Effect of Dietary Administration of Mineral Mixture Containing Amino Acid Tryptophan and Vitamins for Growth Performance and immunity of Catla catla (Hamilton, 1822)

2019 ◽  
Author(s):  
Anita Bhatnagar ◽  
Sonal Saluja
Keyword(s):  
Amino Acid ◽  
Growth Performance ◽  
Ammonia Excretion ◽  
High Growth ◽  
Catla Catla ◽  
Fish Diet ◽  
Feeding Trial ◽  
Mineral Mixture ◽  
Total Ammonia ◽  
Amino Acid Tryptophan

The commenced investigation was conducted to assess the implication of tryptophan in diets of Catla catla. The fingerlings were fed with two different diets C1 and C2; in diet C1, mineral mixture (A) without L-tryptophan and in diet C2 mineral mixture (B) containing L-tryptophan, in addition to vitamins was used. After 90 days of the feeding trial, high growth performance, nutrition retention, and better immunity were observed in fingerlings fed on diet B signifying that tryptophan influences the growth performance and immune response. Excretion of metabolites (total ammonia excretion and orthophosphate production) was significantly low in the holding water when C. catla fingerlings fed on diet C2. Better growth performance and better water quality in treatment C2 may be attributed to the presence of essential vitamins and amino acid tryptophan. Hence, the incorporation of a mineral mixture containing L-tryptophan and vitamins in the fish diet appears to be significant for better growth, nutrition retention, digestibility and immunity.

Effects of low fishmeal diets on the growth performance and physiological condition of ayu Plecoglossus altivelis

2016 ◽  
Vol 82 (5) ◽  
pp. 819-826
Author(s):  
Takeshi Yamamoto ◽  
Nobuhiro Suzuki ◽  
Hirofumi Furuita ◽  
Shunji Amano ◽  
Hiromi Oku ◽  
...  
Keyword(s):  
Growth Performance ◽  
Physiological Condition ◽  
Plecoglossus Altivelis

EFFECT OF PHOTOPERIOD ON GROWTH PERFORMANCE, FEED UTILIZATION AND CARCASS COMPOSITION IN CHANNA PUNCTATUS

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
SUMAN KAPUR
Keyword(s):  
Growth Performance ◽  
Condition Factor ◽  
High Growth ◽  
Feed Utilization ◽  
Carcass Composition ◽  
Day Length ◽  
Gain Length ◽  
Long Photoperiod ◽  
Length Gain ◽  
Ammonical Nitrogen

To study the effect of photoperiod on growth performance in C. punctatus, the fish were exposed to three combinations of day length i.e. LD 14:10, LD 12:12 and LD 9:15 at 25°C. Variables tested were weight gain, length gain, condition factor, FCR, body composition, VSI and HSI. Fish exposed to long photoperiod showed high growth performance followed by equal and short photoperiod. Significantly low concentration of ammonical nitrogen and orthophosphate in holding water were observed in fish exposed to LD 14:10 as compared to LD 12:12 and LD 9:15. VSI values were significantly high (P0.05) in group of fish exposed to LD 14:10, followed by LD 12:12 and LD 9:15. On the other hand, HSI was significantly decreased in fish exposed to LD 9:15, while HSI values under LD 14:10 and LD 12:12 were equal.

scholarly journals High-Growth firms in Peru

2018 ◽  
Vol 37 (75) ◽  
pp. 671-696 ◽  
Author(s):  
Alex Coad ◽  
Gregory Scott
Keyword(s):  
Panel Data ◽  
Growth Performance ◽  
Growth Rates ◽  
High Growth ◽  
Time Span ◽  
Research Note ◽  
Exploratory Research ◽  
Strong Growth ◽  
Growth Firms ◽  
Heavy Tailed

This exploratory research note investigates the frequency and activity of HighGrowth Firms (HGFs) in Peru using panel data on Peru's largest firms for the years 2001-2016. Firms in our dataset enjoyed strong growth in revenues during the period. Compared to other countries, HGFs are relatively common in Peru although the share they represent of all firms in the database decreased over the time span of our analysis. We confirm several previous findings, such as the heavy-tailed growth rates distribution, and the superior growth performance of small and young firms.

Isolation of purple non-sulfur bacteria from the digestive tract of ayu (Plecoglossus altivelis)

2022 ◽  
Author(s):  
Aoi Koga ◽  
Takumi Yamasaki ◽  
Shuhei Hayashi ◽  
Shinjiro Yamamoto ◽  
Hitoshi Miyasaka
Keyword(s):  
Phylogenetic Tree ◽  
Growth Performance ◽  
Digestive Tract ◽  
Intestinal Tract ◽  
Soil Samples ◽  
Plecoglossus Altivelis ◽  
Sulfur Bacteria ◽  
Nacl Concentration ◽  
Kuma River ◽  
Suitable Environment

Abstract Purple non-sulfur bacteria (PNSB) reportedly have probiotic effects in fish, but whether they are indigenous in the digestive tract of fish is a question that requires answering. We attempted to isolate PNSB from the digestive tract of ayu (Plecoglossus altivelis) from the Kuma River (Kumamoto, Japan), and successfully isolated 12 PNSB strains. All the isolated PNSB belonged to the genus Rhodopseudomonas. Five Rhodopseudomonas strains were also isolated from the soil samples collected along the Kuma River. The phylogenetic tree based on the partial sequence of pufLM gene indicated that the PNSB from ayu and soil were similar. The effects of NaCl concentration in growth medium on growth were also compared between the PNSB from ayu and soil. The PNSB from ayu showed a better growth performance at a higher NaCl concentration, suggesting that the intestinal tract of ayu, a euryhaline fish, might provide suitable environment for halophilic microorganisms.

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