scholarly journals THE STUDY OF RICE EEL FARMING (MONOPTERUS ALBUS) IN THE RECIRCULATION SYSTEM

2019 ◽  
Vol 1 (27) ◽  
pp. 86-94
Author(s):  
Son Phuoc Lai

The study of rice eel farming (Monopterus albus Zuiew, 1793) in the recirculation system is to find out a suitable model for rice eel growth and contribute to responding to climate change. The average length and weight  of the rice eels were 22.28 ± 0.21 cm/inds and 14.65 ± 0.48 g/inds, respectively. The experiment was conducted with two treatments: the control treatment and the recirculation treatment; each of them was repeated 3 times in 180 days. Rice eel was fed with 80% fresh trash fish and 20% pelleted pellets with 30% protein. The results showed that the environmental factors such as temperature, pH, N-NH3-, N-NO2- and alkalinity were in suitable range for rice eel growth during the experiment. The survival rate was not different between the two treatments. Weight growth rate in the recirculation system (97.70 ± 9.04 g/inds) was higher than the control (80.67 ± 0.16 g/inds) (p<0,05). Feed conversion ratio (FCR) in two treatments was not different with 2.49 ± 0.05% and 2.41 ± 0.22%. The amount of water was added in recirculation system (3.12 m3/tank) during 180 days only 1/10 compared with thecontrol (32.8 m3/tank). These results showed that the recirculation system was perfectly suited for the growth and development of rice eel.

Author(s):  
Rafi Satriawan ◽  
. Iskandar ◽  
B. S. Ibnu Bangkit ◽  
Walim Lili

This research aims to determine the application of different water currents in a round container that can provide the most optimal effect on the growth rate of giant gourami (Osphronemus goramy) fingerlings. The method used in this research was an experimental method using a completely randomized design (CRD), which consists of three treatments and four replicates The treatment was the use of aeration stone in a round container A (control), B (water current 0.1 m s-1 in a round container) and C (water current 0.1 m s-1 combined with a venturi in a round container). The fish size used in this research was 2-3 cm obtained from Gourami and Nilem Breeding Centre, Singaparna, West Java Province. Fish were kept in water gallons with a volume of 19 L. Each gallon contained 30 fish. The feeding rate was 5% from biomass. The feed was given three times daily. Every ten days the weight data were collected and used for adjusting the feeding rate. The water quality during the research (40 days) was observed every seven days while survival rate, absolute weight growth, daily growth rate, feed conversion ratio and feed efficiency were observed every ten days. Based on the results of the research, the best reuslt was treatment C (water current of 0.1 m s-1 combined with venturi in a round container) had the highest survival rate (SR) of 58%, absolute weight growth (3.5 g), daily growth rate (1.69%), feed conversion ratio (2.01) and feed efficiency (50%).


Author(s):  
Santika Ahmad ◽  
Ibnu Bangkit ◽  
. Iskandara ◽  
Izza Mahdiana Apriliani

This research was purposed is to find the optimum current for growth and growth of Bonylip Barb fingerlings (Osteochilus hasselti C.V). Method used in this research is compelitely Randomized Design (CRD), consists of three treatments and four replications. The treatments are : A (without current or (control), B (with 0.1 ms-1 water current) and C. (0.1 ms-1 water current cabined with venture aeration). Bonylip Barb of 4 – 6 cm size are kept as many as 15 fish / x Liters and the amount of feed given is adjusted to the feeding rate (FR) of 10 % of Bonylip Barb biomass carried out every three times a day and adjusted for growth every ten days. Water quality during maintenance (40 days) was observed once every 10  days while survival, absolute weight growth, daily growth rate, feed conversion ratio and feed efficiency were observed every ten days. After 40 days of maintenance,  the best result showed 0.1 ms-1, with 100% survival rate , 6.09 g absolute growth, 3.13% specific growth rate , 3.48% feed conversion ratio was , and  30.04%. feed efficiency.


1991 ◽  
Vol 116 (1) ◽  
pp. 119-124
Author(s):  
D. C. Patterson ◽  
D. J. Kilpatrick

SUMMARYA total of 52 individually penned pigs (mean initial and final live weights (LW) of 31·7 and 81·5 kg, respectively) was used in a randomized block experiment at the Agricultural Research Institute of Northern Ireland, Hillsborough, in 1984. The treatments were based on dietary regimes which comprised a control diet in which meal was offered at 86 g dry matter/k W0·75 per day or diets in which silage effluent was substituted for part of the allowance of meal of the control diet at 125, 175, 225 and 275 g/kg on a dry matter basis to give 0·125, 0·175, 0·225 and 0·275 effluent diets. There was also a negative control diet in which meal was offered at 850 g/kg of the rate of feeding of the control diet. Each of these dietary treatments included water available ad libitum. In a further treatment, effluent was substituted for 225 g/kg of the meal allowance of the control treatment on a dry matter basis, but additional water was not offered. The treatment based on the 0·275 effluent diet was omitted from the first four replicates.Some refusals of diet occurred at the higher rates of effluent feeding, with mean refusals of 7, 11 and 21 g/kg, respectively, for the 0·175, 0·225 and 0·275 effluent diets on a dry matter basis. Significant linear and quadratic contrasts (P <0·01) were found for daily LW gain, feed conversion ratio and total liquid intake. The quadratic response curves for daily LW gain and feed conversion ratio had relatively flat peaks, optimum values occurring at concentrations of effluent in the diet of 95 (S.E. 17) and 99 (S.E. 15) g/kg, respectively. From the response curves, performance in terms of LW gain and feed conversion ratio was equal, or superior, to that obtained with the control diet at concentrations of effluent of up to 190 (S.E. 33) and 199 (S.E. 30) g/kg, respectively, but deteriorated at higher concentrations of effluent.Additional water was consumed at all rates of inclusion of effluent. However, from the quadratic equations, the total consumption of liquid was lower with diets containing effluent at up to 161 g/kg of diet than with the control diet.


2009 ◽  
Vol 52 (2) ◽  
pp. 200-204
Author(s):  
İ. Durmuş ◽  
S. Kalebaşi

Abstract. This study was carried out to investigate the effects of fluctuate lighting on performance of laying hens. Two programs were applied with 16 hours daily lighting: step-up (normal) lighting program as the control treatment and a fluctuate lighting program of 2 W/m2 for 45 min and 6 W/m2 for 15 min. Egg weight, feed consumption, feed conversion ratio, henday egg production and hen-housed egg production of the laying hens were recorded for 46 weeks. No significant difference for hen-day and hen-housed egg production between the step up and fluctuate lighting programs (P>0.05) were found. However, fluctuate lighting program resulted in a significant increase in egg weight (P<0.05). Moreover, hens in the fluctuate lighting program consumed significantly less amount of feed and had a better feed conversion ratio than hens in the step-up lighting program (P<0.01). The results of the present study indicate that fluctuate lighting can be used for a profitable egg production.


2020 ◽  
Vol 9 (1) ◽  
pp. 30
Author(s):  
Kemala Hudita ◽  
Agustono Agustono ◽  
Widya Paramita Lokapirnasari

Mud crab is one of the fishery commodity which potential to be cultured because it has high economic value. Mud crab has nutrients content such as protein 62,72%, lipid 0,83%, ash 7,5% and water content 9,9%. Trash fish is fresh feed which commonly used as main feed for the growth of mud crab juvenile of 5,3to 13,8%, however Kuniran fish has omega-3 eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content which is necessary for optimum growth of mud crab.The study method was implemented as the experimental method use Completely Randomized Design (CRD) which consists of five treatments and four replications. The quantity of Crude Fish Oil which is added in trash fish feed on this study are: Treatment A (0%), B (2%), C (4%), D (6%) dan E (8%). The observed parameters are growth of mud crab and feed conversion ratio value. Data analysis use Variant Analysis (ANAVA) and continued with Duncan's Multiple Range Test to determine differences between treatments. The results shows that addition of Crude Fish Oil in trash feed fish for 32 days of rearing gives significantly different effect (P<0,05) toward length and width of mud crab carapace, meanwhile toward feed conversion value of mud crab doesn’t gives significantly different effect (P>0,05). High length and width  growth of carapace were obtained on D and E treatment. The water quality of mud crab during 32 days of rearing is the temperature range of 28-29°C, pH range of 7,5-9,0, salinity range of 15-21ppt, dissolve oxygen range of 4 mg/l and ammonium range of 0,09-0,27 mg/l.


2018 ◽  
Vol 1 (29) ◽  
pp. 72-81
Author(s):  
Hop Van Nguyen ◽  
Tinh Huu Nguyen ◽  
Hoa Van Tran ◽  
Kinh Van La

The objective of the study is to compare the practical results with the predicted results by Crossbreeding Effects (CBE) software on pig crossbred based on daily gain, backfat thickness and feed conversion ratio. Another purpose of this study is to predict those three traits among some expected hybridization. This research was conducted on pig farm at Binh Thang Research and Development center from 2013 to 2017. In this study, for each pair of purebred Duroc and Pietrain, Duroc and Landrace, Pietrain and Landrace, twelve hybridizations were analyzed, nine unhybridizations were predicted by CBE software. The results showed that there was no significant difference between the predicted and actual data. With some unhybridization crossbred , the predictions showed high reliability (P<0.05). Based on the predicted data of CBE software , some traits of the crossbred animals would not be improved, therefore, it was not necessary to conduct these hybridizations


2018 ◽  
Vol 21 (3) ◽  
pp. 96
Author(s):  
Partama I. B. G. ◽  
T. G. Belawa Yadnya ◽  
A. A. A. S. Trisnadewi ◽  
A. A. P. P. Wibawa ◽  
I. M. Mudita

Penelitian bertujuan untuk mengetahui pengaruh pemanfaatan sekam padi difermentasi larutan EffectiveMicroorganism-4 (EM-4) dalam ransum disuplementasi daun sirih (Piper betle L.) terhadap performans dan karkasitik bali betina, umur 22 minggu. Penelitian menggunakan rancangan acak lengkap dengan lima perlakuan yaituransum tanpa sekam padi (A), ransum mengandung 12,50% sekam padi (B), ransum mengandung 12,50 % sekampadi difermentasi EM-4 (C), ransum mengandung 12,50% sekam padi dan daun sirih (D), serta ransum 12,50%sekam padi difermentasi EM-4 dan daun sirih (E). Setiap perlakuan terdiri atas empat ulangan dan setiap ulanganberisi lima ekor ituik bali betina, Variabel yang diamati konsumsi ransum, konsumsi antioksidan ransum, bobotbadan akhir, pertambahan bobot badan, feed conversion ratio dan karkas meliputi bobot potong, bobot karkas danpersentase karkas. Hasil penelitian menunjukkan bahwa pemberian 12,50 % sekam padi difermentasi EM-4 sertadisuplementasi daun sirih tidak berpengaruh terhadap konsumsi ransum(P>0,05), namun dapat menghasilkanbobot badan akhir, pertambahan bobot badan lebih tinggi (P<0,05), serta FCR yang lebih rendah (P<0,05) sertabobot karkas dan persentase karkas yang lebih baik daripada perlakuan yang lainnya. Dapat disimpulkan bahwapemberian sekam padi yang difermentasi EM-4 serta disuplementasi daun sirih dapat memperbaiki performansdan karkas yang lebih baik daripada perlakuan yang lainnya.


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1705
Author(s):  
Shih-Chieh Liao ◽  
Pei-Xuan Lu ◽  
Shih-Yi Shen ◽  
Chih-Chang Hsiao ◽  
Ching-Yi Lien ◽  
...  

Footpad dermatitis (FPD) is a major foot disease in modern poultry production, and it affects both poultry health and animal welfare. It refers to inflammation and necrotizing lesions on the plantar surface of the footpads and toes. We investigated the effects of providing a swimming pool and different floor types on growth performance and FPD score in indoor-reared White Roman geese. Forty-eight male and 48 female White Roman geese were randomly allocated to pens with or without a swimming pool and with either mud or perforated plastic floor and reared from 15 to 84 days of age. Growth performance measurements included feed intake (FI), weight gain (WG), and feed conversion ratio (FCR). FI, WG, and FCR were significantly decreased at various growth periods in geese provided with a pool. Lower WG and bodyweight for the perforated plastic floor group were found at 15–28 and 28 days of age, respectively. The geese reared on the perforated plastic floors without a pool had higher FPD scores at 70 and 84 days of age than those with other rearing conditions. A higher incidence of FPD score 1 was observed in geese raised without a pool. In conclusion, providing a pool can improve footpad health in indoor-reared White Roman geese but may not benefit growth performance.


Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 643
Author(s):  
Franciele C. N. Giacobbo ◽  
Cinthia Eyng ◽  
Ricardo V. Nunes ◽  
Cleison de Souza ◽  
Levy V. Teixeira ◽  
...  

We evaluated the influence of enzymatic supplementation on the growth performance and cecal microbiota of broilers. A total of 2160 1-day-old male chicks were used in a 3 × 2 × 2 factorial arrangement (three corn hybrids, two drying temperatures −80 and 110 °C, with or without the inclusion of an enzymatic blend (amylase, xylanase, and protease) (20 birds/pen, n = 9). For all performance and digestibility parameters, we observed, in general, isolated effects of the corn hybrids and drying temperature. Birds that received the enzymatic blend in the diet showed better weight gain from 1 to 21 days (d) and better digestibility coefficients of nutrients at 42 d. Birds fed diets with corn dried at 80 °C showed a better feed conversion ratio from 1 to 42 d. At 21 d of age, enzymatic supplementation had positive effects on jejunum morphology. Enzyme supplementation increased the abundance of the phylum Tenericutes, class Bacilli and Mollicutes, reduced Clostridia, and increased the abundances of the families Lactobacillaceae, Anaeroplasmataceae, and O_RF39;F. In conclusion, the addition of amylase, xylanase, and protease led to a better nutrient digestibility, performance, and intestinal morphology. In addition, enzyme supplementation changed the diversity, composition, and predicted function of the cecal microbiota at d 21.


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