scholarly journals Growth performance and metabolic response of Nile tilapia fed rations supplemented with autolized yeast and zinc

2010 ◽  
Vol 39 (12) ◽  
pp. 2560-2568 ◽  
Author(s):  
Altevir Signor ◽  
Luiz Edivaldo Pezzato ◽  
Pedro de Magalhães Padilha ◽  
Carlos Roberto Padovani ◽  
Margarida Maria Barros
Keyword(s):  
Alkaline Phosphatase ◽  
Growth Performance ◽  
Nile Tilapia ◽  
Metabolic Response ◽  
Mineral Metabolism ◽  
Dry Weight ◽  
Ammonia Concentration ◽  
Metabolic Responses ◽  
Feed Conversion ◽  
Kinetic Activity

This research evaluated the influence of yeast and zinc on growth performance and metabolic responses of Nile tilapia. Diets were formulated to contain 32.0% digestible protein and 3,240 kcal DE/kg diet and the following autolized yeast (%):zinc (mg/kg)relationships: 0.0:0.0; 0.0:79.5; 2.0:0.0; 0.795:79.5; 2.0:200; 4.0:400; 6.0:600; 12.0:1,200 and 14.0:1,400. It was used 135 fingerlings (7.27 ± 0.19 g), distributed in a complete random design in 27 50-L aquaria and they were fed ad libitum four times a day for 128 days. It was evaluated growth performance and metabolic responses, weight gain, apparent feed conversion; protein efficiency and survival rate; percentage of protein, ether extract, dry weight and ashes in the muscle and in the bones; ammonia concentration and kinetic activity of alkaline phosphatase in the liver; ammonia, kinetic activity of alkaline phosphatase, urea and lipids in the plasma and; minerals in plasma, in the liver and in the bones of the fish. High levels of yeast and zinc in the diet impaired growth performance and metabolic responses of the fish. Autolized yeast at the level of 2.0% determines the best growth performance. Levels higher than 6.0% of autolized yeast and 600 mg zinc in the diets impair growth performance and lipid metabolism in fish and levels higher than 4.0% of autolized yeast and 400 mg zinc/kg in the diet impair mineral metabolism.

scholarly journals EFFECT OF REPLACING MUSTARD OILCAKE BY LINSEED OILCAKE ON GROWTH PERFORMANCE OF NILE TILAPIA (Oreochromis niloticus, Linnaeus, 1758)

2017 ◽  
Vol 22 (1) ◽  
pp. 10-16
Author(s):  
Suraj Babu Ghimire ◽  
Rahul Ranjan
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Linseed Oil ◽  
Daily Weight Gain ◽  
Average Weight ◽  
Feed Conversion ◽  
Fish Yield ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Significant Difference

 This study was done to explore the effect of replacing mustard oilcake by linseed oilcake in feed on the growth performance of Nile Tilapia (Oreochromis niloticus). Mustard oilcake (MOC) was replaced by linseed oil cake (LOC) at three different level 0%, 50% and 100% to prepare three different types of diets. Diets were prepared with about 18% analyzed crude protein content. Fingerlings were kept in three happa with three replications for each diet in completely randomized design (CRD). Fish of average weight 5.31 g were stocked in happa having size 1.5m×1.5m×1.2m. The experimental fish were fed 3% of their body weight per day, once in the morning for five months continuously. No significant difference (p>0.05) in final mean weight, final total weight, average daily weight gain (DWG), survival rate, extrapolated gross fish yield (GFY), extrapolated net fish yield (NFY) and apparent feed conversion ratio (AFCR) among different treatments were observed. Hence, linseed oilcake can be used as the substitute in the feed of tilapia, if it is locally available.  Journal of Institute of Science and Technology, 2017, 22 (1): 10-16 

Growth performance and metabolic responses of Nile tilapia fed diets with different protein to energy ratios

Aquaculture ◽  
2022 ◽  
Vol 547 ◽  
pp. 737493
Author(s):  
H. Peres ◽  
J.M.A. Freitas ◽  
P.L.P. Carvalho ◽  
W.M. Furuya ◽  
M.M.P. Satori ◽  
...  
Keyword(s):  
Growth Performance ◽  
Nile Tilapia ◽  
Metabolic Responses ◽  
Energy Ratios

Effect of different dietary levels of low-glucosinolate rapeseed (canola) meal and non-starch polysaccharide-degrading enzymes on growth performance and gut physiology of growing turkeys

2013 ◽  
Vol 93 (3) ◽  
pp. 353-362 ◽  
Author(s):  
Zenon Zduńczyk ◽  
Jan Jankowski ◽  
Jerzy Juśkiewicz ◽  
Dariusz Mikulski ◽  
Bogdan A. Slominski
Keyword(s):  
Growth Performance ◽  
Rapeseed Meal ◽  
Ammonia Concentration ◽  
Control Treatment ◽  
Canola Meal ◽  
Feed Conversion ◽  
Degrading Enzymes ◽  
Intestinal Contents ◽  
Small Intestinal ◽  
Gut Physiology

Zduńczyk, Z., Jankowski, J., Juśkiewicz, J., Mikulski, D. and Slominski, B. A. 2013. Effect of different dietary levels of low-glucosinolate rapeseed (canola) meal and non-starch polysaccharide-degrading enzymes on growth performance and gut physiology of growing turkeys. Can. J. Anim. Sci. 93: 353–362. One-day-old male turkey poults were randomly assigned to eight dietary treatments and were fed diets containing 0, 60, 120, or 180 g kg−1of low-glucosinolate rapeseed meal (RSM) from 1 to 56 d of age without or with a commercial non-starch polysaccharide-degrading enzyme product containing pectinase, cellulase, xylanase, glucanase, mannanase and galactanase activities. There were no significant differences (P>0.05) in body weight and feed conversion ratio between the Control soybean meal-based diet and the diets containing RSM. Overall, the inclusion of up to 180 g kg−1of RSM did not affect the growth performance of turkeys. When compared with the Control treatment, the diet with the lowest RSM content increased the pH of the small intestinal contents and the amounts of cecal digesta. The moderate level of RSM also increased the pH of the small intestinal contents although no increase in the cecal digesta contents was noted. In comparison with other treatments, the highest RSM content increased the content of the small intestinal digesta considerably and decreased the pH of the small intestinal contents to that of the Control treatment. All three dietary levels of RSM significantly reduced the activity of bacterial β-glucuronidase in the ceca. Enzyme supplementation tended to reduce ileal viscosity (P=0.079), decreased ammonia concentration, increased the glycolytic activities of the intestinal microflora enzymes α-glucosidase, α-galactosidase, and β-galactosidase, decreased the activity of β-glucuronidase and increased the growth rate of turkeys.

scholarly journals Effects of feeding zooplankton, Moina macrocopa (Straus, 1820) on the growth of Nile tilapia Oreochromis niloticus L.

2017 ◽  
Vol 52 (2) ◽  
pp. 81-88
Author(s):  
MR Islam ◽  
MR Hassan ◽  
M Begum ◽  
NJ Punom ◽  
MK Begum ◽  
...  
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Growth Parameters ◽  
Average Daily Gain ◽  
Control Treatment ◽  
Feed Conversion ◽  
Moina Macrocopa ◽  
Individual Fish ◽  
Commercial Feed

Studies were carried out on the growth performance of Tilapia fry, Oreochromis niloticus cultured with zooplankton, Moina macrocopa in comparison to commercial feed. Three types of feed were used in three treatments where treatment-1 was fed with handmade feed (control), treatment-2 with commercial feed and treatment-3 with live zooplankton M. macrocopa. Thirty fry were stocked in each 60 L aquarium for a rearing period of 56 days. The fishes were fed twice a day at 90-400 Moina/individual fish for first 20 days, then 500-850 Moina/individual fish for 15 days and 900-1250 Moina/individual fish for remaining days. Sampling was done at 14 days interval. The growth performance of M. macrocopa was higher in the treatment fed with Spirulina which was 6350 individuals/ L of water and in the treatment fed with yeast it was 5100 individuals/L of water at 12th days. The study showed that condition factor of tilapia fry found in treatment-3 fed with M. macrocopa was comparatively higher (2.18±0.09) than that of treatment-2 fed with commercial feed (1.86±0.13) at a 56-day culture period. Average daily gain was significantly higher in the treatment-3 fed with M. macrocopa (0.13±0.01) than those of treatment-1 (0.06±0.01) and treatment-2 (0.08±0.01). The best value of feed conversion ratio and specific growth rate was found in treatment-3 fed with M. macrocopa than commercial feed and handmade feed. Protein content was significantly higher (15.91%) in treatment-3 than those of treatment-1 (10.96%) and treatment-2 (11.88%). The findings of this study suggest that growth parameters and body composition of Nile Tilapia was better in treatment-3 fed with M. macrocopa.Bangladesh J. Sci. Ind. Res. 52(2), 81-88, 2017

Effect of Levels of Yucca Schidigera Extract on Ruminal Fermentation Parameters, Digestibility of Nutrients and Growth Performance in Sheep

2011 ◽  
Vol 343-344 ◽  
pp. 655-660
Author(s):  
Chun Long Liu ◽  
Zhong Qiu Li
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Ammonia Concentration ◽  
Dependent Manner ◽  
Ruminal Fermentation ◽  
Feed Conversion ◽  
Yucca Schidigera ◽  
Fermentation Parameters ◽  
Growth Trial

An in vivo fermentation experiment (Expt.1) and a digestibility and growth trial(Expt.2) were conducted to determine the effect of levels of Yucca Schidigera Extract (YSE) on ruminal fermentation parameters ,digestibility of nutrients and growth performance in Sheep. Three same levels of YSE supplementation were studied in both experiments. In the Expt.1,four rumen fistulated male sheep with initial body weight of 33±1.8 ㎏were randomly assigned according to a 4×4 Latin square design. The dietary treatments were YSE based offering at 0,100, 200 and 300 mg/kg diet. It was found that ruminal pH was not significantly different among treatments. Relative to control, ruminal propionate concentration was increased by YSE addition in a dose-dependent manner by up to 29.79%（P<0.05）,the acetic concentration was decreased by up to2 1.23%（P<0.05）.Ruminal ammonia concentration was larger (P<0.05) in sheep receiving no YSE (increased by 18.86 mg/dl) than in those receiving 200mg/kg (2.85 mg/dl increase in NH3) or 300mg/kg (2.72 mg/dl increase). Protozoa populations in the rumen were lower (P<0.05) with YSE of 200-300 mg/kg than without. In the digestibility and growth trial(Expt.2),increasing levels of YSE resulted in liner increase in daily body weight gain rate (P<0.05) and feed conversion efficiency(P<0.05). Additionally ,apparent digestibilities(%) of DM,OM,CP,and NDF were significantly different in all treatment .In conclusion, the 200 and 300 mg/kg YSE groups have a particular suppressing effect on ruminal ammonia concentration, ammonia N concentrations and protozoa populations were decreased, The effects on ruminal propionate and acetic concentration were probably a result of a selective inhibitory effect of YSE on rumen microbial species. The effect of YSE on ruminal ammonia concentration likely resulted from a decreased population of protozoa, presumably, from ammonia binding by YSE. YSE can significantly improved the apparent digestibility of nutrient and sheep growth performance.

scholarly journals Use of tuna industry waste in diets for Nile tilapia, Oreochromis niloticus, fingerlings: effect on digestibility and growth performance

2017 ◽  
Vol 41 (3) ◽  
pp. 468-478
Author(s):  
Crisantema Hernández ◽  
Miguel A. Olvera-Novoa ◽  
Domenico Voltolina ◽  
Ronald W. Hardy ◽  
Blanca González-Rodriguez ◽  
...  
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Basal Diet ◽  
Protein Source ◽  
Feed Conversion ◽  
Industry Waste ◽  
Commercial Feed ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Main Protein

During the tuna canning process, about 52~54% of the total weight of the fish is discarded as waste, which can be processed in order to obtain tuna byproducts meal (TBM), or stabilized as tuna silage hydrolysates (TSH). Both products were tested as replacements of soybean meal (SBM), in diets for fingerling male Nile tilapia Oreochromis niloticus. Seven test diets were isonitrogenous (35% CP) and isoenergetic (19 kJ g-1): a basal diet contained SBM as main protein source (TSH0); four experimental diets had increasing inclusion levels of TSH replacing 25, 50, 75 and 100% of the SBM protein. The sixth diet contained TBM as sole protein source, and a commercial feed for tilapia was used as reference diet (RD). The diets were fed for eight weeks to triplicate tanks, each with 15 fry tilapia (initial weight of 0.89 ± 0.29 g). Tilapia fed the TBM diet had greater weight gain and feed intake, and lower feed conversion ratios than those fed diets containing with TSH. The RD, TSH25 and TSH50 diets gave the similar growth response. Fish fed diets TSH0, TSH75% and TSH100% showed reduced growth performance.

scholarly journals 172 Calorimetric Evaluation of Apple Seed Dormancy

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 420A-420
Author(s):  
E. Carvajel-Millan ◽  
A.A. Gardea ◽  
V. Guerrero-P ◽  
F. Goycoolea ◽  
C. Rivera
Keyword(s):  
Seed Dormancy ◽  
Metabolic Response ◽  
Isothermal Calorimetry ◽  
Dry Weight ◽  
Metabolic Responses ◽  
Apple Seed ◽  
Golden Delicious ◽  
Precise Tool ◽  
Definite Pattern ◽  
Response To Temperature

Apple embryos from moist seeds kept at 4 °C were used for a calorimetric characterization of Red and Golden Delicious apple seed dormancy. Seeds were sampled at 100-h intervals during 1200 h. The metabolic response of such samples was compared to that from chilled Golden Delicious seeds (>1200 h) stored under controlled atmosphere (CA). Isothermal calorimetry at 25 °C, evaluated metabolic activity (q), respiration rate (RCO2), metabolic 65 °C estimated activation energy (Ea) in a 10 to 20 °C range, and respiration coefficients (Q10) from 10 to 50 °C at 10 °C intervals. Data showed a direct relationship between chilling exposure and embryo metabolic responses from both cultivars. Once chilling requirement was satisfied, Red and Golden Delicious seeds presented a significant increase (P ≤ 0.05) in q, 0.94 and 0.98 μW/mg dry weight (dw); RCO2, 9.9 and 7.6 mmol CO2/mg dw; and RSG·ΔHB, 3.6 and 2.5 μW/mg dw, respectively. On the other hand, q/RCO2 did not follow a definite pattern, neither in Red nor Golden Delicious cultivars. Ea decreased 19.2 and 23.4 J/mol per °K per mg dw in Red and Golden Delicious, respectively, as a function of seed chilling. Q10 showed a significant response to temperature, but not to chilling exposure. Golden Delcious seeds from CA showed a significant reduction on q, RCO2, and RSG·ΔHB of 0.28 μW/mg dw, 2.47 mmol CO2/mg dw, and 14 μW/mg dw, respectively. Results show that calorimetry is a sufficiently sensitive, fast, and precise tool to quantify metabolic responses during seed chilling, as evolving energy.

scholarly journals Evaluating the addition of starry triggerfish (Abalistes stellaris) bone charcoal as a feed supplement to the growth performance and intestinal villi length of nile tilapia (Oreochromis niloticus)

DEPIK ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 194-200
Author(s):  
Azwar Thaib ◽  
Lia Handayani ◽  
Ardila Hanum ◽  
Nurhayati Nurhayati ◽  
Faisal Syahputra
Keyword(s):  
Growth Performance ◽  
Nile Tilapia ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Additive ◽  
Feed Conversion ◽  
Feed Supplement ◽  
Intestinal Villi ◽  
Randomized Design ◽  
Bone Charcoal

Nile tilapia is a freshwater fish that is widely cultivated in Indonesia. During its development, tilapia aquaculture has constraints such as low growth rates. Therefore, it is necessary to add a feed additive to the feed in the form of charcoal. Charcoal is an adsorbent that has high absorption so that the addition of charcoal in the feed can increase the absorption of nutrients of tilapia. A 45-days trial was conducted to determine the percentage of addition of triggerfish bone charcoal (Abalistes stellaris) as a feed supplement that affect the growth performance and intestines of tilapia. The research design was a non-factorial Completely Randomized Design (CRD) with 4 treatments and 2 replications as treatments including: treatment A (control), B (addition of 1%charcoal), C (addition of 2% charcoal) and D (addition of 3% charcoal). A total of 240 tilapia fingerlings (5-7 cm) were used and placed in 8 aquariums then filled with 72 liters of water. Providing adlibitum (unlimited) feed with a frequency of 2 times a day. The ANOVA test showed that the addition of triggerfish bone charcoal (A. stellaris) in the feed was not significantly different (P 0.05) in weight growth, absolute length and daily length growth but it was significantly different (P 0.05) in feed conversion ratio and the efficiency of feed utilization. Based on result, it was concluded that the addition of 3% charcoal was the best treatment which gave the lengthiest of villi which was increasing the length of the intestinal villi to 71.11 µm from the initial length of 162.22 µm. easel at 233.33 μm, showed the highest feed conversion ratio value and feed efficiency (1.12 %, 89.6%).Keywords:CharcoalFish boneIntestinal histologyStarry triggerfish

scholarly journals Improvement of Growth and Viability of Oreochromis niloticus in a Biofloc System Using Chlorella vulgaris

2021 ◽  
Vol 21 (10) ◽  
pp. 491-500
Author(s):  
S. Flefil Nasser ◽  
Ahmed M. Aboseif ◽  
Abd-Ellatif M. Hussian
Keyword(s):  
Growth Performance ◽  
Chlorella Vulgaris ◽  
Nile Tilapia ◽  
Muscle Protein ◽  
Conversion Ratio ◽  
Food Additive ◽  
Feed Conversion ◽  
Protein Ratio ◽  
Phytoplankton Structure ◽  
Total Phytoplankton

This study aimed to enhance Nile Tilapia growth using Chlorella vulgaris as a food additive in the biofloc system. Different concentrations of C. vulgaris were tested in four different treatments compared to control. The growth rate of Nile tilapia was parallel with C. vulgaris addition to the treatments. The best productive value (growth performance) for Nile Tilapia was recorded in T1 that was distinctly superior to the other treatments. The use of C. vulgaris in the biofloc system decreased feed conversion ratio (FCR) values; whereas the most significant value was observed at T1. Phytoplankton structure in Nile Tilapia gut was predominated with C. vulgaris representing 67.7% of the total phytoplankton crop. Statistical analysis also approved that the most important factor affecting Nile Tilapia growth was C. vulgaris addition, and some other chemical variables that affect phytoplankton’s growth such as PO4. In addition, muscle protein ratio of Nile Tilapia increased with increasing C. vulgaris concentrations. Our data concluded that increasing C. vulgaris concentration improved the growth performance of Nile Tilapia under the biofloc condition.

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