scholarly journals Growth Responses of Hybrid Catfish (Clarias gariepinus ♀ X Heterobranchus bidosarlis ♂) Fingerlings Fed Diets Lablab Bean Meal (Lablab purpureus)

Author(s):  
B. S. Aliu ◽  
S. Osayamen ◽  
A. C. Esume

This study examined the replacement of soyabean meal (SBM) with Lablab bean meal (LBM) in the practical diets of Clariid catfish (Heteroclarias). Five Iso-nitrogenous diets of 40%CP containing varying levels of LBM were incorporated as a non-conventional feedstuff at D1(10% LBM); D2(20%LBM); D3(30%LBM); D4(40%LBM) and D5(50% LBM) as a replacement for soyabean meal. Seventy-five Heteroclarias fingerlings with an initial mean weight of 1.46±0.01 g were stocked randomly to five treatments in triplicate groups and were fed to satiation twice daily for a period of 70 days. At the end of the 70days experimental period, all growth parameters decreased across all diets from D1 to D5. D1(10% LBM) had the best growth rate as it recorded the highest value in terms  of weight gain (1.25); feed intake (2.34); feed conversion ratio (1.86); relative weight gain (4.86) and specific Growth rate of (1.33) while D5 recorded the least values across all parameters. D1 was not significantly different (P>0.05) from D­2 in all growth parameters listed above but D1 and D2 were significantly different (P<0.05) from D3, D4 and D5. Therefore, Lablab bean meal can replace soyabean meal totally but will be best at 10% replacement in diets for Hetero clarias without compromising the growth and carcass composition. Further research should be carried out to test lablab meal on pure Heterobranchus bidorsalis fingerlings.

Author(s):  
BS Aliu ◽  
◽  
SO Omenogor ◽  

The growth response and feed utilization of Clarias gariepinus fed with diet containing different level of dietary synthetic methionine was investigated to determine the effect of diet on their growth rate and its utilization by fish. (108) fingerlings of Calrias gariepinus (2.1+0.5g) obtained from a private fish farm in Benin City were stocked in eighteen (18) 25L plastic tank. 6 diet (40%) crude protein consisting of a control (0% methionine supplementation) and five DIT other diet (3.2%, 4.23%, 7.30%, 8.70% and 9.79% synthetic methionine supplementation) were compounded and fed to the fish till satiation. Each diet was fed to the fish twice daily (9.00hrs and 17.00hrs). Data on the weight gain and feed consumed were taken on weekly basis. There was no significant difference in term of relative weight gain (RWG), specific growth rate (SGR), total weight gain (TWG) and weekly weight gain (WWG). The control with (0% methionine) showed a higher weight gain with diet 5 (8.76% methionine) having a lower weight gain. However, the feed intake (FI) was significantly different (P<0.005) with the control midway the highest feed intake but diet 2 (4.25%) with a step downward showed lowest feed intake. The protein efficiency ratio (per) value were significantly different with diet 1 having the highest value which was different from all other which with diet 4 having a lowest per. In terms of survival there was significant difference (P<0.05) with diet 3(0% methionine). Supplementation has the highest and a reduced survival at diet 2 synthetic methionine. In this study synthetic methionine had not been sufficiently utilized by Clarias gariepinus fingerling since the control did perform better than those supplemented with various level of methionine.


2012 ◽  
Vol 11 (91) ◽  
pp. 15802-15810 ◽  
Author(s):  
Evelyn Ezenwaji Ngozi ◽  
Iluno Ada ◽  
Atama Chinedu ◽  
Onyekachi Nwaigwe Chukwuemeka ◽  
Uchenna Nwaigwe Chioma

2013 ◽  
Vol 42 (1) ◽  
pp. 76-80
Author(s):  
CO Olaniyi ◽  
GO Babasanmi

The use of Silkworm (Anaphe infracta) pupae as a protein source was investigated for its ability to replace fishmeal in the diet of Clarias gariepinus, African cat fish. Five dried diets formulated at 40% crude protein were fed to fingerlings of an average initial weight of 14.33g at 0 (control diet), 25, 50, 75 and 100% inclusion levels of silk worm meal. The experiment was conducted for 84 days were measured. Mean weight gain (MWG), specific growth rate (SGR), feed conversion ratio (FCR). The five inclusion levels of silk worm pupae supported the growth of Clarias gariepinus fingerlings, the growth and feed utilization were favoured by high inclusion level of silk worm meal. Significant differences (p<0.05) were observed among the treatments, although there were no significant differences (p>0.05) in the growth parameters between 50% and 75% inclusion levels. The 100% silk worm pupae meal inclusion gave the best final mean weight gain of 10.29g specific growth rate of 0.93%, feed conversion ratio of 2.18 and protein efficiency ratio (PER) of 0.012. The carcass protein and lipid contents increased compared to the levels of both at the beginning of the experiment. Even though, there were no significant differences (p>0.05) among proximate composition of the fish groups fed 25, 50 and 75%. The results showed that diet consists of 100% silk worm meal could be used as a complete replacement for fish meal in the diet formulation for Clarias gariepinus fingerlings. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15787 Bang. J. Anim. Sci. 2013. 42 (1): 76-80


1970 ◽  
Vol 12 (1) ◽  
pp. 63-70 ◽  
Author(s):  
H. Swan ◽  
G. E. Lamming

SUMMARY1. Three groups, each of eight steers, were fed on pelleted diets containing 30, 50 or 70% ground barley straw, maize and soya bean meal. On an air-dry basis the diets contained 12% crude protein.2. Daily live-weight gain was 1·29, 1·19 and 1·02 kg/day for the 30, 50 and 70% straw diets respectively, and was negatively related to the percentage of crude fibre in the dry matter (r = −0·61, P < 0·05).3. The apparent digestibility of dry matter, determined in sheep at the maintenance level of feeding was negatively related to percentage crude fibre in the dry matter (r = −0·91, P < 0·001).4. All animals were killed at approximately the same live weight, which was reached on average in 140,153 and 163 days by the 30, 50 and 70% groups, respectively.5. The differences in mean carcass weight between treatments were significant (P < 0·05). Killing-out percentage was significantly reduced (P < 0·05) as the proportion of ground barley straw in the diet was increased from 30 to 70%.6. The proportion of straw in the diet had no direct effect on the composition of carcass gain.7. The results are discussed in relation to the intake of digestible energy.


Author(s):  
L. U. Onyia ◽  
I. J. Ochokwu ◽  
I. J. Bargudu

Monoculture is the rearing of single species of fish in a pond while polyculture is the farming of two or more species in the same physical space. This study aims to compare the growth parameters of Clarias gariepinus fingerlings in monoculture and polyculture, using concrete and earthen ponds in a randomized complete block design. The polyculture, comprised of Clarias gariepinus and Oreochromis niloticus. 480 fingerlings were used; the stocking density was 40fish in a 3x2x1.5m depth with initial weight (4.84±0.11547) for C. gariepinus in monoculture and 40 each in polyculture with an initial pooled weight of O. niloticus (50g) replicated thrice, it was fed for eight weeks with commercial feed (40% crude protein). Weekly, random sampling was done to measure the growth and adjust the feeding rate. The results revealed that polyculture has the best mean final weight (160.07±0.18559g) and weight gain of 155.29, while the highest total length (45.666±3.179) was recorded in monoculture for Clarias gariepinus reared in an earthen pond. The polyculture had the highest specific growth rate (2.46), Relative growth rate (246.49), and condition factor (0.184). There was a significant difference (P<0.05) in monoculture of both concrete and earthen ponds.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Hamed H.E. Saleh

 No or little information on the use fresh (wet) housefly maggots (Musca domestica) in African catfish (Clarias gariepinus) fry feeding. Therefore, this study was conducted to investigate the effect of feeding on fresh (wet) housefly maggots with or without artificial diet on water quality, growth performance, survival percentage and feed utilization of African catfish fry under laboratory conditions. Housefly maggots produced from a mixture of poultry droppings and foods wastes, it was used to replace artificial feed at 0, 50 and 100% levels. Catfish were fed artificial diet alone (Feed 1), fresh (wet) housefly maggots alone (Feed 2), and 50% fresh housefly maggots with 50% artificial diet (Feed 3) were prepared and tested on triplicate groups of African catfish fry (initial weight of 0.25±0.02 g) for 60 days. Results showed that final weight (g/fish) was significantly highest (P£0.05) in fish fed feed 3 (6.03±0.08), followed by fish fed feed 2 (4.62±0.27), followed by fish fed feed 1 (3.15±0.68). Specific growth rate (%/day) was also significantly highest in fish fed feed 3 (5.31±0.10), followed by fish fed feed 2 (4.86±0.03), followed by fish fed feed 1 (4.18±0.24). The same trend was observed with total weight gain, percentage weight gain, daily growth rate and relative growth rate. Feed intake and protein intake were significantly highest (P£0.05) in fish fed feed 3 and fish fed feed 2, followed by fish fed feed 1. While, feed conversion ratio (FCR) and protein efficiency ratio were not significantly (P>0.05), but the improvement in FCR recorded in catfish fry fed feed 3 and feed 2 under the experimental conditions. Survival percentage was within the range 55–75%, with insignificant differences (P>0.05) among treatments. The water quality parameters such as temperature, pH, dissolved oxygen, total ammonia, nitrite and nitrate were not significantly (P>0.05) among the treatments and were tolerable for fish culture. Accordingly, use of the 50% fresh (wet) housefly maggots with 50% artificial diet in African catfish fry feeding had positive effect on growth performance and reduce of the feed cost.


2019 ◽  
Vol 1 ◽  
pp. 113-117 ◽  
Author(s):  
O A Aghoghovwia ◽  
S T Obah ◽  
E I Ohimain

Duckweed (Lemna gibba), a nuisance aquatic macrophyte, was studied as a substitute for the partially replacement ofsoya bean meal in the diet of Clarias gariepinus fingerlings. Four dry diets formulated at 4% crude protein were fed to fingerlings at 0% (control) 10%, 20% and 30% inclusion levels of duckweed meal named as Diet A, B, C and D respectively. The fish were feed at 5% body weight and was assessed for feed conversion ratio (FCR), protein efficiency ratio (PER), survival rate among others. The highest growth performance and nutrient utilization was recorded at diet D i.e. 30% inclusion rate of duckweed with a mean weight gain of 5.45 + 0.309g, and food conversion ratioof 3.32 + 0.43 which was significantly different (P < 0.05) to the values obtained for other diets. The lowest weight gain was recorded in diet A i.e. the control diet, with a value of 3.06 + 0.03g. The result of this study showed that as the inclusion rate of duckweed is increased, there was a corresponding increase in the growth rate of the fish. The study demonstrated that duckweed can be used for the replacement of soya beans in the diet of catfish fingerlings, thus converting a nuisance weed into useful feed component for the reduction of feeding cost.


Author(s):  
Aliu BS ◽  
◽  
Obuseli OI ◽  

An experiment was designed and carried out to assess the growth performance and feed utilization (weight gain, feed conversion ratio, protein efficiency ratio, specific growth rate, feed intake and survival) of Clarias gariepinus fingerlings fed graded levels of toasted Leucaena leucocephala seed meal based diets with the aim of establishing the best inclusion level of Leucaena seed meal. One hundred and eight (108) fingerlings with an initial mean weight of 2.10g were allotted at random to six treatments in triplicate groups with each treatment tank having six fingerlings and were fed with isocaloric and isonitrogenous diets containing 40% crude protein (CP). The toasted seed meal was used to replace soybean meal in the diets in the following proportions: diets I (0%), diets II (10%), diets III (20%), diets IV (30%), diets V (40%) and diets VI (50%). At the end of the feeding trials that lasted for 6 weeks, the mean weight gains of fish, relative weight gain, specific growth rate, feed intake, feed conversion ratio and protein efficiency was highest in treatment I while mean weight gain of fish, relative weight gain, specific growth rate and feed conversion ratio was lowest in treatment V. Feed intake was lowest in treatment VI and protein efficiency was lowest in treatment II. Survival among treatments slightly varied significantly but was not as a result of the feed consumed. At the end of the experiment, the recommended inclusion level of Leucaena seed meal was 20%.


Author(s):  
E. C. Nwanevu ◽  
G. M. Sokari ◽  
G. N. Isitor ◽  
E. E. Orlu ◽  
S. G. Ogolo ◽  
...  

Aim: Evaluation of the effectiveness of formulated Watermelon (Citrullus lanatus) and Moringa oleifera booster on the growth performance of Heterobranchus bidorsalis. Study Design: Data were subjected to statistical analysis using Duncan Multiple Range Statistics and interpretation was done using SPSS Version 22. Place and Duration of Study: The experiment was conducted in the laboratory at the Department of Applied and Environmental Biology, Rivers State University, Nigeria for a period of 12 weeks (3 months), between November, 2016 – March, 2017. Methodology: Total of 240 Heterobranchus bidorsalis fingerlings with an initial mean weight (1.61±0.23 g) and length (5.13±0.26 cm) were acclimated for one week. After acclimation, the fishes were fed twice daily (9am and 6pm) with 10% of their body weight after coating 2 ml/1 kg of the commercial feed with their individual growth booster syrup and allowed to air-dry for about 20 minutes. Heterobranchus bidorsalis fingerlings were scooped for the measurements exercise at one week interval after which they were returned to their various tanks. Results: The result of this study recorded the experimental diets with optimum growth and survivability. From the result, it was deduced that, Commercial feed coated with watermelon syrup booster recorded the best performance in the growth variables of mean weight (26.36 ±3.19 g), mean length (13.61±1.35 cm), mean weight gain (24.64±3.00 g), mean length gain (8.38±1.35 cm), relative weight gain (25.36±3.19) while Commercial feed coated with commercial syrup booster (CbCf) recorded the best performance in growth variables of Daily Growth Rate (15.15±0.55) and Specific Growth Rate (2.69±0.03%) against Moring growth booster and commercial feed (control). However, there was less mortality as the fishes in different treatment tanks survived above 90%. Conclusion: It could be summarized that Commercial feed coated with watermelon syrup booster (WbCf) had the best growth performance against the control groups although their values were not significantly impacted (p>0.05) when compared with other experimental diets.


2010 ◽  
Vol 27 (Special Issue 2) ◽  
pp. 28-35 ◽  
Author(s):  
A. Medveďová ◽  
Ľ. Valík ◽  
A. Studeničová

The growth responses of Staphylococcus aureus 2064 as affected by water activity and incubation temperature were studied in two different laboratory media. Growth parameters at temperatures from 7 to 51&deg;C and a<sub>w</sub> in the range from 1.0 to 0.86 were fitted using Ratkowsky models. The effect of temperature within its whole range on the specific growth rate was modelled by the extended model under the following equation: &radic;&micro; = 0.0456 (T &ndash; T<sub>min</sub>) [1 &ndash; e<sup>0.447(T &ndash; T<sub>max</sub>)</sup>]. The water activity values of tested media were adjusted by sodium chloride in the range from a<sub>w</sub> = 1.0 to 0.86 and experiments were conducted at 15 and 18&deg;C. The growth responses of S. aureus on water activity at 15&deg;C and 18&deg;C in PCA broth and BHI broth was described by simplified Ratkowsky model in the form: &radic;&micro; = b &times; a<sub>w</sub>. Validation of the found relationships confirmed sound fitting of the data and thus the referred results of the isolate originated from ewes&rsquo; cheese can be used in the growth prediction of S. aureus, reliably.


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