scholarly journals Effect of egg size on hatching quality and post-hatch performance of indigenous chickens

2021 ◽  
Vol 41 (1) ◽  
pp. 77-83
Author(s):  
A. W. Lamidi ◽  
S. S. Abiola ◽  
M. A. Ozoje ◽  
O. A. Adeyemi ◽  
A. Y. P. Ojelade
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Good Predictor ◽  
Egg Size ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Treatment Groups ◽  
Indigenous Chickens

The experiment was designed to evaluate the effect of egg size on hatching quality and post-hatch growth performance of normal feathered indigenous chickens. Hatchable eggs, grouped into three sizes: medium/control, small and large, were incubated to obtain day-old chicks. One hundred and eighty (180) day-old chicks were allotted to three treatment groups according to the egg sizes from which they were hatched. Egg size significantly (p<0.05) influenced chick hatching weight. Chicks hatched from large eggs were the heaviest (36.89g) while those obtained from small ones were the smallest (31.02g). Daily growth rate (DGR) was progressive and uniform in both cockerels and pullets in the first 8 weeks of life across the treatment groups. It was concluded that egg size, though could determine chick hatching weight, but not a good predictor of post-hatch growth performance in normal feathered indigenous chickens

scholarly journals Effect of Different Inorganic Substrates on Growth Performance of African Catfish (Clarias gariepinus, Burchell 1822) and Lettuce (Lactuca sativa L.)

2021 ◽  
Vol 9 (4) ◽  
pp. 714-722
Author(s):  
Murat Yeşiltaş ◽  
Mehmet Ali Turan Koçer ◽  
Hüseyin Sevgili ◽  
Edis Koru
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Lactuca Sativa ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Lactuca Sativa L ◽  
Inorganic Substrates ◽  
Rock Wool

Lettuce (Lactuca sativa L.) and African catfish (Clarias gariepinus) were preferred to grow in aquaponics due to their high and fast productivity growth. However, limited research was conducted on the impact on different inorganic substrates’ growth performance in aquaponics. In this study, lettuce’s growth performance was determined in four different kinds of inorganic substrates in Nutrient Film Technique (NFT) aquaponics by measuring final weight, daily growth rate, stem diameter, plant and root lengths, leaf number per plant and shoot/root ratio. Polyester fiber, rock wool, zeolite, and gravel were used as inorganic substrate materials. A constant flow rate of 0.3 L/min was maintained using with a submersible pump motor. At the end of the study, the African catfish’s feed conversion ratio was estimated to be 0.66, while the specific growth rate (SGR) was 2.3%. Total lettuce yields for polyester fiber, rock wool, zeolite and gravel were obtained as 5.072,22 kg/m2, 4.934,03 kg/m2, 6.067 kg/m2, and 5.382,64 kg/m2 respectively. There were statistically significant differences for daily growth rate between the inorganic substrates that the significantly highest values were recorded in the zeolite. The results revealed that initial plant length and shoot/root ratio were the significant factors on the growth performance for lettuce in aquaponic system tested. The best lettuce yield performance was observed in zeolite substrate but, economically available option was found as gravel for hydroponic troughs.

scholarly journals Growth performance of African catfish Clarias gariepinus cultured in biofloc system at high stocking density

2017 ◽  
Vol 16 (2) ◽  
pp. 255
Author(s):  
Petrus Hary Tjahja Soedibya ◽  
Taufik Budhi Pramono ◽  
Emyliana Listiowati
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
African Catfish ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Absolute Growth Rate ◽  
Energy Retention ◽  
Absolute Growth

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">This study was aimed to analyze the growth performance of African catfish <em>Clarias gariepinus</em> cultured in the biofloc system at high stocking density. African catfish with an average weight of 1.85±0.09 g were cultured in four units of tarpaulin tank at a diameter of 1.72 m and a height of 1.05 m with a volume of ±2,000 L at the different density of 1,000 fish/m<sup>3</sup>; 1,500 fish/m<sup>3</sup>; 2,000 fish/m<sup>3</sup>; 2,500 fish/m<sup>3</sup>. During rearing period, fish were given the artificial feed with protein contents of 28.75% with the frequency of twice a day, as much as 3% of the body weight. The results showed that different treatment of high stocking density in the biofloc system had a significant effect on the absolute growth rate, lipid retention and energy retention (P&lt;0.05) but not significant effect on daily growth rate. The results showed that the highest lipid retention and energy retention were found in the group of fish treated at a stocking density of 2,500 fish/m<sup>3</sup> but declining protein retention and growth in fish occurred. The highest absolute growth rate and daily growth rate were shown by treatment with a stocking density of 1,500 fish/m<sup>3</sup>.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: growth, stocking density, biofloc <em></em></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Penelitian ini bertujuan untuk menganalisis performa pertumbuhan ikan lele dumbo Clarias gariepinus yang dipelihara pada sistem bioflok dengan padat penebaran tinggi.  Ikan uji memiliki berat rata-rata 1,85±0,09 g yang dipelihara pada kolam terpolin berdiameter 1,72 m dan tinggi 1,05 m dengan volume air ±2.000 L sebanyak empat unit dengan kepadatan yang berbeda yaitu 1.000 ekor/m<sup>3</sup>, 1.500 ekor/m<sup>3</sup>, 2.000 ekor/m<sup>3</sup>, 2.500 ekor/m<sup>3</sup>. Selama 40 hari masa pemeliharaan, ikan diberi pakan buatan berkadar protein 28,75% dengan frekwensi dua kali sehari, sebanyak 3% dari berat tubuh. Hasil penelitian menunjukkan bahwa perlakuan perbedaan padat penebaran tinggi pada sistem bioflok memberikan pengaruh yang nyata terhadap pertumbuhan mutlak, retensi lemak dan retensi energi (P&lt;0,05) namun tidak memberikan pengaruh nyata terhadap laju pertmbuhan harian. Hasil penelitian menunjukkan bahwa semakin tinggi padat penebaran terjadinya peningkatan retensi lemak dan retensi energi yaitu pada perlakuan padat penebaran 2.500 ekor/m<sup>3</sup> tetapi terjadi penurunan nilai retensi protein dan pertumbuhan pada ikan. Nilai pertumbuhan mutlak tertinggi ditunjukkan oleh perlakuan dengan padat penebaran 1.500 ekor/m<sup>3</sup>.  </p><p class="NoParagraphStyle">  </p><p>Kata kunci: pertumbuhan, padat tebar, bioflok</p>

scholarly journals Growth Performance of Catfish (Clarias gariepenus) Cultured of High Density with Biofloc System

2018 ◽  
Vol 47 ◽  
pp. 02002
Author(s):  
Petrus Hary Tjahja Soedibya ◽  
Emyliana Listiowati ◽  
Taufik Budhi Pramono ◽  
Norman Arie Prayogo ◽  
R. Taufan Harisam
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Inorganic Nitrogen ◽  
Water Volume ◽  
Hepatosomatic Index ◽  
Average Weight ◽  
African Catfish ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Absolute Growth

Catfish is a species of freshwater fish that contains a source of protein and it has economic value and has become one of the famous commodities in Indonesia. Biofloc can be one alternative waste fixers intensive cultivation for reduce the waste of inorganic nitrogen and also provide additional protein for increase growth and feed efficiency. This study was to determine the effect of high stocking densities on the growth performance of african catfish in biofloc system. This study used completely randomized design (CRD) with different stocking densities in the system biofloc T1.(1000/m3), T2.(1500/m3), T3.(2000/m3), and T4.(2500/m3). Animal trials were using jouvenile african catfish with an average weight of 1.06±0.3g, which maintained in a pool tarpoulin cage with water volume ±2000L for 50 days with feeding ratio 3% of the weight biomass. The results showed a significantly different effect (P<0.05) against the value of hepatosomatic index, absolute growth and daily growth rate, but the result not significant at spesific growth rate. The second treatment (T2) showed the best results than others in the growth rate and daily growth rate with a value of 6.45±3.1g for absolute growth and 0.13±0.06g for daily growth rate. The four treatment showed the best results than others in the hepatosomatic index with value 4.7 ± 1.8%. These findings demonstrate a role of biofloc technology in catfish aquaculture.

scholarly journals Growth performance of African catfish Clarias gariepinus cultured in biofloc system at high stocking density

2017 ◽  
Vol 16 (2) ◽  
pp. 244
Author(s):  
Petrus Hary Tjahja Soedibya ◽  
Taufik Budhi Pramono ◽  
Emyliana Listiowati
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
African Catfish ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Absolute Growth Rate ◽  
Energy Retention ◽  
Absolute Growth

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">This study was aimed to analyze the growth performance of African catfish <em>Clarias gariepinus</em> cultured in the biofloc system at high stocking density. African catfish with an average weight of 1.85±0.09 g were cultured in four units of tarpaulin tank at a diameter of 1.72 m and a height of 1.05 m with a volume of ±2,000 L at the different density of 1,000 fish/m<sup>3</sup>; 1,500 fish/m<sup>3</sup>; 2,000 fish/m<sup>3</sup>; 2,500 fish/m<sup>3</sup>. During rearing period, fish were given the artificial feed with protein contents of 28.75% with the frequency of twice a day, as much as 3% of the body weight. The results showed that different treatment of high stocking density in the biofloc system had a significant effect on the absolute growth rate, lipid retention and energy retention (P&lt;0.05) but not significant effect on daily growth rate. The results showed that the highest lipid retention and energy retention were found in the group of fish treated at a stocking density of 2,500 fish/m<sup>3</sup> but declining protein retention and growth in fish occurred. The highest absolute growth rate and daily growth rate were shown by treatment with a stocking density of 1,500 fish/m<sup>3</sup>.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: growth, stocking density, biofloc <em></em></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Penelitian ini bertujuan untuk menganalisis performa pertumbuhan ikan lele dumbo Clarias gariepinus yang dipelihara pada sistem bioflok dengan padat penebaran tinggi.  Ikan uji memiliki berat rata-rata 1,85±0,09 g yang dipelihara pada kolam terpolin berdiameter 1,72 m dan tinggi 1,05 m dengan volume air ±2.000 L sebanyak empat unit dengan kepadatan yang berbeda yaitu 1.000 ekor/m<sup>3</sup>, 1.500 ekor/m<sup>3</sup>, 2.000 ekor/m<sup>3</sup>, 2.500 ekor/m<sup>3</sup>. Selama 40 hari masa pemeliharaan, ikan diberi pakan buatan berkadar protein 28,75% dengan frekwensi dua kali sehari, sebanyak 3% dari berat tubuh. Hasil penelitian menunjukkan bahwa perlakuan perbedaan padat penebaran tinggi pada sistem bioflok memberikan pengaruh yang nyata terhadap pertumbuhan mutlak, retensi lemak dan retensi energi (P&lt;0,05) namun tidak memberikan pengaruh nyata terhadap laju pertmbuhan harian. Hasil penelitian menunjukkan bahwa semakin tinggi padat penebaran terjadinya peningkatan retensi lemak dan retensi energi yaitu pada perlakuan padat penebaran 2.500 ekor/m<sup>3</sup> tetapi terjadi penurunan nilai retensi protein dan pertumbuhan pada ikan. Nilai pertumbuhan mutlak tertinggi ditunjukkan oleh perlakuan dengan padat penebaran 1.500 ekor/m<sup>3</sup>.  </p><p class="NoParagraphStyle">  </p><p>Kata kunci: pertumbuhan, padat tebar, bioflok</p>

SUBSTITUSI FERMENTASI BUNGKIL KELAPA SAWIT DALAM PAKAN BUATAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN GURAMI (OSPHRONEMUS GOURAMY)

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Farida . ◽  
Eka Indah Raharjo ◽  
Arnis Maylinda Sari
Keyword(s):  
Growth Rate ◽  
Palm Oil ◽  
Palm Kernel ◽  
Specific Weight ◽  
Feed Conversion ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Average Growth ◽  
Fermentation Residue ◽  
Average Average

ABSTRAKPenelitian bertujuan untuk mengetahui penggunaan fermentasi bungkil kelapa sawit dalam pakan buatan.Penelitian menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan 3 ulangan.Susunan perlakuan adalah Perlakuan A : bungkil kelapa sawit 12%, Perlakuan B : fermentasi bungkil kelapa sawit 15%, Perlakuan C : fermentasi bungkil kelapa sawit 18%, Perlakuan D : fermentasi bungkil kelapa sawit 21%. Penelitian ini dilakukan selama 60 hari untuk mengetahui laju pertumbuhan spesifikberat, laju pertumbuhan harianpanjang, konversi pakan, kelangsungan hidup dan kualitas air sebagai penunjang.Hasil penelitian menunjukkan pemberian pakan buatan dengan fermentasi bungkil kelapa sawit menghasilkan respon yang baik terhadap pertumbuhan ikan gurami. Pemberian pakan buatan dengan fermentasi bungkil kelapa sawit 18% (perlakuan C), memberikan hasil terbaik dengan laju pertumbuhan dengan rata – rata laju pertumbuhan spesifik berat 1.502%, laju pertumbuhan harian panjang 4.06%, nilai konversi pakan rata – rata 3.48 dan kelangsungan hidup rata – rata 90%.Kata Kunci : Fermentasi Bungkil Kelapa Sawit, Ikan Gurami, Laju PertumbuhanThe study aims to determine the use of fermentation residue oil palm in artificial feed .Research using a completely randomized design ( CRD ), which consists of 4 treatment three replications.The composition of the treatment is the treatment  A : 12 % of palm oil cake , Treatment B : fermented palm oil cake 15 % , Treatment C : fermented palm oil cake 18 % , Treatment D : fermentation residue palm oil 21 %.This research was conducted for 60 days to determine the specific growth rate of heavy , long daily growth rate , feed conversion , survival and quality of water as a supporter.The results showed the artificial feeding with fermented palm cake to produce a good response to the growth of carp.Feeding artificially by fermentation cake palm oil 18 % ( treatment C ) , gives the best results with a growth rate with the average - average growth rate of the specific weight of 1.502 % daily growth rate long- 4:06 % , the value of feed conversion average - average 3:48 and median survival - average of 90 % .Keywords : Fermentation Palm Kernel Oil, Fish carp, Growth Rate

scholarly journals Public Compliance With Social Distancing Measures and SARS-CoV-2 Spread

2021 ◽  
pp. 003335492110112
Author(s):  
Hongjie Liu ◽  
Chang Chen ◽  
Raul Cruz-Cano ◽  
Jennifer L. Guida ◽  
Minha Lee
Keyword(s):  
Growth Rate ◽  
Reproduction Number ◽  
Early Stage ◽  
Human Mobility ◽  
The United States ◽  
Density Change ◽  
Regression Coefficients ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Social Distancing

Objective We quantified the association between public compliance with social distancing measures and the spread of SARS-CoV-2 during the first wave of the epidemic (March–May 2020) in 5 states that accounted for half of the total number of COVID-19 cases in the United States. Methods We used data on mobility and number of COVID-19 cases to longitudinally estimate associations between public compliance, as measured by human mobility, and the daily reproduction number and daily growth rate during the first wave of the COVID-19 epidemic in California, Illinois, Massachusetts, New Jersey, and New York. Results The 5 states mandated social distancing directives during March 19-24, 2020, and public compliance with mandates started to decrease in mid-April 2020. As of May 31, 2020, the daily reproduction number decreased from 2.41-5.21 to 0.72-1.19, and the daily growth rate decreased from 0.22-0.77 to –0.04 to 0.05 in the 5 states. The level of public compliance, as measured by the social distancing index (SDI) and daily encounter-density change, was high at the early stage of implementation but decreased in the 5 states. The SDI was negatively associated with the daily reproduction number (regression coefficients range, –0.04 to –0.01) and the daily growth rate (from –0.009 to –0.01). The daily encounter-density change was positively associated with the daily reproduction number (regression coefficients range, 0.24 to 1.02) and the daily growth rate (from 0.05 to 0.26). Conclusions Social distancing is an effective strategy to reduce the incidence of COVID-19 and illustrates the role of public compliance with social distancing measures to achieve public health benefits.

scholarly journals Pengaruh Nitrat (NO3) Terhadap Pertumbuhan Alami Eceng Gondok (Eichornia crassipes Solms.) Berdasarkan Biomassa Basah Di Danau Batur, Kintamani, Bali

2017 ◽  
Vol 3 (2) ◽  
pp. 215
Author(s):  
Lisa Rosalia Prayuda ◽  
I Wayan Arthana ◽  
Ayu Putu Wiweka Krisna Dewi
Keyword(s):  
Growth Rate ◽  
Water Hyacinth ◽  
High Fertility ◽  
Natural Growth ◽  
Initial Weight ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Natural Lakes ◽  
High Fertility Rate ◽  
Eichornia Crassipes

Batur Lake is one of the natural lakes in the province of Bali where the activity of fishing, agriculture, tourism and housing available. This study aims to determine the effect of nitrate relation to the natural growth of the water hyacinth (Eichornia crassipes). Increased water hyacinth biomass in Songan station is the highest among the three other stations (Batur, Buahan, and Trunyan). At the end of the study (day 42 ), water hyacinth biomass of Songan station increased by 338.2 % from the initial weight, while at another station the increase weight  ranges from 75 % -158 %. The highest daily growth rate in Trunyan station 3.68% / day, and the lowest in station Buahan which only reached 0.88% / day. At the Songan station where are many floating net which contribute to increase nitrate. There is a tendency of growth of water hyacinth faster at higher nitrate conditions. Nitrate conditions ranged from 0,35 to 0,62 m /l which shows that the waters of Batur Lake classified into waters that have a high fertility rate (eutrophic).

scholarly journals UTILIZATION OF MARINE FUNGAL Nodulisporium sp. KT29 METABOLITES TO IMPROVE THE PRODUCTION PERFORMANCE OF MARINE CULTURE OF WHITE SHRIMP

2017 ◽  
Vol 8 (2) ◽  
pp. 747
Author(s):  
Fazril Saputra ◽  
Dinamella Wahjuningrum ◽  
Kustiariyah Tarman ◽  
Irzal Effendi
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Production Performance ◽  
White Shrimp ◽  
Feed Conversion ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Marine Culture

<em>This study aimed to determine the best dose of administration of marine fungal <span style="text-decoration: underline;">Nodulisporium</span> sp. KT29 metabolites to improve the production performance of marine culture of white shrimp. The experimental animals used were white shrimp <span style="text-decoration: underline;">Litopenaeus</span> <span style="text-decoration: underline;">vannamei</span> post larvae 12, which were reared in the sea using floating net cages with a stocking density of 700 post larvae/net. Experimental design used was a completely randomized design consisting of 3 treatments with 3 replications; control without the administration of <span style="text-decoration: underline;">Nodulisporium</span> sp. KT29 metabolites, dietary of feed containing <span style="text-decoration: underline;">Nodulisporium</span> sp. KT29 metabolites at doses of 20 mL/kg of feed and 40 mL/kg of feed. The results showed that survival rate, absolute length growth, weight gain, daily growth rate and feed conversion ratio in treatment groups were better than the control (P&lt;0.05). The administration of marine fungal <span style="text-decoration: underline;">Nodulisporium</span> sp. KT29 metabolites at a dose of 20 mL/kg of feed could improve the production performance of white shrimp cultivated in the sea with survival rate, daily growth rate and feed conversion ratio: 66.61±6.94%, 20.18±0.39 %/day and 3.20±0.22, respectively.</em>

scholarly journals PENGARUH SUBSTITUSI TEPUNG IKAN DENGAN TEPUNG KEPALA IKAN PATIN (Pangasius sp) TERHADAP PERTUMBUHAN IKAN LELE SANGKURIANG (Clarias sp)

2018 ◽  
Vol 6 (2) ◽  
pp. 129-140
Author(s):  
Yesica Manullang ◽  
Limin Santoso ◽  
Tarsim .
Keyword(s):  
Growth Rate ◽  
Fish Meal ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Protein Retention ◽  
Weight Growth ◽  
Randomized Design ◽  
Absolute Growth ◽  
Completely Randomized Design ◽  
Difference Test

ABSTRACTThe research was conducted at the Aquaculture Laboratory, University of Lampung in May to July,  2018. The aim of this study is to determine the effect of substitution of fish meal with catfish head flour on the growth of catfish, and head flour dosage the best for catfish growth. The study used a Completely Randomized Design with 3 treatments and 3 replications A (100% fish meal), B (70% fish meal and 30% catfish flour), and C (40% fish meal and 60% catfish flour). Parameters observed included absolute growth, daily growth rate, protein retention, feed convertion ratio (FCR), survival rate (SR), and supporting parameters that is feed cost and water quality. The data obtained were analyzed by variance and continued with smallest real difference test with a 95% confidence level. The results showed that the proportion of catfish head flour in artificial feed had an effect on absolute weight growth and daily growth rate (P, 0.001). The proportion of the use of 30% starch in the feed of catfish has a real influence on absolute growth (40.25 ± 5.67 g), and daily growth rate (0.67 ± 0.09 g/day).Keywords : Catfish, catfish head waste, substitution, feed, growth

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