scholarly journals The Effects of Fish Feed Supplemented with Azolla Meal on the Growth Performance, Digestive Enzyme Activity, and Health Condition of Genetically-Improved Farmed Tilapia (Oreochromis niloticus)

2020 ◽  
Vol 20 (3) ◽  
pp. 1029-1045 ◽  
Author(s):  
Fawzy I. Magouz ◽  
Mahmoud A.O. Dawood ◽  
Mahmoud F.I. Salem ◽  
Ayman A.I. Mohamed
Keyword(s):  
Digestive Enzyme ◽  
Goblet Cells ◽  
Health Condition ◽  
The Body ◽  
Phagocytic Index ◽  
Control Group ◽  
Fish Feed ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Genetically Improved

AbstractAzolla meal was included in fish feed at different levels (10%, 20%, and 30%) and was fed to genetically-improved farmed tilapia (GIFT) for 90 days. The obtained results demonstrated that the final body weight, weight gain, and specific growth rate decreased significantly in fish fed 30% Azolla (P<0.05), while tilapia fed 10% and 20% did not differ significantly from those of the control (P>0.05). However, the feed conversion ratio increased significantly in fish fed 30% Azolla (P<0.05), while tilapia fed 10% and 20% did not differ significantly from those of the control (P>0.05). The body proximate analysis, amylase, lipase, protease, blood phagocytic index, and phagocytic and lysozyme activity were not affected by the inclusion of Azolla in tilapia diets and remained similar to those of the control group (P>0.05). The villus length of the foregut was not significantly affected by Azolla inclusion in tilapia diets (P>0.05). In the midgut, the villus length significantly (P<0.05) increased in fish fed Azolla at 20% and 30% compared to the control, with no differences from those fed at 10% (P>0.05). The villus length significantly (P<0.05) increased in the hind gut in fish fed Azolla at 30 % compared to the control, with no differences from those fed at 10% and 20% (P>0.05). The mucosal length of the tilapia foregut significantly (P<0.05) increased in fish fed Azolla at 10% compared to the control, with no differences from those fed at 20% and 30% (P>0.05). In the foregut and hindgut, the number of goblet cells significantly increased in fish fed Azolla at 3% compared to the control, with no differences from those fed at 10% and 20% (P>0.05), while in the midgut, the number of goblet cells significantly (P<0.05) increased in fish fed Azolla at 20% and 30% compared to the control, with no differences from those fed at 10% (P>0.05). Feeding tilapia with Azolla resulted in normal hematological and biochemical functions, with insignificant differences for the measured parameters except for the red blood cell count, which significantly (P<0.05) increased in fish fed Azolla at 20% compared to the control, with no differences from those fed at 20% and 30%.

scholarly journals Citral as food additive for common snook - zootechnical parameters and digestive enzymes

2020 ◽  
Vol 50 (4) ◽  
Author(s):  
Bruna Tomazetti Michelotti ◽  
Natacha Cossettin Mori ◽  
Caio Cesar Franca Magnotti ◽  
Berta Maria Heinzmann ◽  
Ana Paula Gottlieb Almeida ◽  
...  
Keyword(s):  
Digestive Enzyme ◽  
Experimental Period ◽  
Quality Parameters ◽  
Control Group ◽  
Fish Feed ◽  
Feed Conversion ◽  
Main Compound ◽  
Beneficial Effects ◽  
Common Snook ◽  
Digestive Enzyme Activities

ABSTRACT: Essential oils of plants whose main compound is citral showed beneficial effects when added to fish feed. The objective of the present study was to evaluate the dietary effect of the addition of citral on zootechnical parameters and digestive enzyme activities of Centropomus undecimalis. Juveniles were fed for 45 days with diets containing different amounts of citral (0.0 - control, 0.5, 1.0, and 2.0 mL per kg of diet). The water quality parameters were kept stable during the experiment and no mortality was observed. At the end of the experimental period, the treatment 0.5 mL citral per kg of diet had the lowest weight gain and specific growth rate, and the highest feed conversion, while the same parameters did not differ between the other treatments. Pepsin activity was higher in the stomach of fish fed with 0.5 mL citral per kg of diet and amylase activity was higher in the intestine of fish fed with 0.5 and 2.0 mL citral per kg of diet compared to the control group. Intestinal lipase activity was higher in all groups that were fed with citral compared to the control group. Chymotrypsin and trypsin activities showed no difference between groups. Consequently, dietary addition of citral at any of the levels tested is not recommended for common snook.

scholarly journals Impact of Yeast Fermented Poultry by-Product Meal on Growth, Digestive Enzyme Activities, Intestinal Morphometry and Immune Response Traits of Common Carp (Cyprinus carpio)

2020 ◽  
Vol 20 (3) ◽  
pp. 939-959 ◽  
Author(s):  
Mahmoud A.O. Dawood ◽  
Fawzy I. Magouz ◽  
Mohamed Essa ◽  
Mohamed Mansour
Keyword(s):  
Common Carp ◽  
Enzyme Activities ◽  
Digestive Enzyme ◽  
Goblet Cells ◽  
The Other ◽  
Whole Body ◽  
Phagocytic Index ◽  
Dependent Manner ◽  
Final Body Weight ◽  
Digestive Enzyme Activities

AbstractThe current study was carried out to investigate the effects of Saccharomyces cerevisiae-fermented poultry by product meal (PBM) on growth performance, micromorphological, and immunological changes in common carp. Five experimental diets were prepared to include fermented PBM at 0, 5, 10, 15, and 20 % level in the diet of common carp (4.91±0.01 g). The fish were reared for 90 days on these diets. The obtained results revealed that yeast fermented PBM significantly changed the final body weight (FBW), weight gain (WG), specific growth rate (SGR), feed intake (FI), and feed conversion ratio (FCR) of the fish in a dose dependent manner (P<0.05). Fish fed 20 % fermented PBM showed the highest FBW, WG, SGR, FI, and lowest FCR. However, whole body composition did not vary significantly among fish fed different diets (P>0.05). Dietary yeast fermented PBM at 10 and 20 % level significantly increased the lipase, amylase, and protease activities than the other groups (P<0.05). The anterior, middle, and posterior intestinal villus length was significantly increased in fish fed fermented PBM at 15 and 20 % level when compared to the other groups (P<0.05). The number of goblet cells was significantly increased in the middle section of intestine in fish fed yeast fermented PBM at 20 % level, while in the posterior region of intestine the number of goblet cells was significantly increased in fish fed yeast fermented PBM at 15 and 20 % level (P<0.05). The histomorphology of intestine showed an increased length, branching and density of intestinal villi in fish fed yeast fermented PBM diets. Most of the measured blood parameters showed insignificant (P>0.05) differences except for Hb, RBCs, WBCs, total blood protein, and globulin which were significantly affected by the inclusion of yeast fermented PBM (P<0.05). Lysozyme activity was significantly increased in fish fed yeast fermented PBM at 5, 10, and 15 % level, while the phagocytic activity and phagocytic index were significantly increased at 20 % level when compared to the control groups (P<0.05). It is concluded from this study that inclusion of yeast fermented PBM in the diet of common carp at 15-20% level increased digestive enzyme activities, immune function and growth of the fish.

The use of acidifying agents Aquasafe and Veleguard when rearing of broiler chickens

2020 ◽  
pp. 16-27
Author(s):  
L. Gamko ◽  
T. Tarinskaya
Keyword(s):  
Drinking Water ◽  
Organic Acids ◽  
Broiler Chickens ◽  
Positive Impact ◽  
The Body ◽  
Metabolic Energy ◽  
Control Group ◽  
Meat Production ◽  
Feed Conversion ◽  
Broiler Meat

It is known that necessary to replace the components of organic acids, which are part of acidifiers when drinking water to poultry in order to prevent the adaptation of microbes in the gastrointestinal tract. In the poultry industry organic acids are widely used, which are used as acidifiers to preserve the properties of water consumed. The purpose of this work was to evaluate the efficiency of broiler meat production when using acidifying agents of drinking water Aquasafe and Veleguard. The experimental part of the work has been performed in JSC “Kurinoe Tsarstvo-Bryansk” broiler area “Roshcha” in the Pochepsky district. The object of research was the livestock of broiler chickens cross Cobb 500 at floor housing. The effect of water acidifiers on meat productivity has been studied. Groups of chickens have been formed on the principle of pairs-analogues. Broiler chickens of experimental groups have been separated from the main livestock by a grid in the corner of the room for 100 heads in each group. It has been found by a result of research to be optimal dose usage of acidifying agents water Aquasafe and Veleguard to drink to broiler chickens. The positive effect of these acidifiers on the digestion of crude protein, crude fat, crude fiber, contributing to the effective use of nitrogen, which led to an increase in the intensity of growth, young animals’ livability and improved feed conversion. Slaughter yield in the control group was 55,1 %, and in the experimental group 57,2 and 58,4 %, which was by 2,1 and 3,3 % higher with the same level of metabolic energy and nutrients. In chickens that consumed acidifi ers more intensively used nutrients feed for deposition in the body of the components of the carcass, which affected the production. A positive impact of acidifying agents Aquasafe and Veleguard on meat quality in broiler chickens has been found.

scholarly journals Exploring the Multimodal Role of Yucca schidigera Extract in Protection against Chronic Ammonia Exposure Targeting: Growth, Metabolic, Stress and Inflammatory Responses in Nile Tilapia (Oreochromis niloticus L.)

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2072
Author(s):  
Zizy I. Elbialy ◽  
Abdallah S. Salah ◽  
Ahmed Elsheshtawy ◽  
Merna Rizk ◽  
Muyassar H. Abualreesh ◽  
...  
Keyword(s):  
Nile Tilapia ◽  
Inflammatory Responses ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Metabolic Stress ◽  
Fish Growth ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Yucca Schidigera

Ammonia is a critical hazardous nitrogen metabolic product in aquaculture. Despite trials for its control, ammonia intoxication remains one of the most critical issues to overcome. In this study, we explored the modulatory effect and potential mechanism by which Yucca schidigera extract (YSE) can ameliorate ammonia intoxication-induced adverse effects on tilapia health and metabolism. A total number of 120 Nile tilapia were evenly assigned into four groups with three replicates each. The first group served as normal control group; the second group was exposed to ammonia alone from the beginning of the experiment and for four weeks. The third group was supplied with YSE in water at a dose of 8 mg/L and exposed to ammonia. The fourth group was supplied with YSE only in water at a dose of 8 mg/L. YSE supplementation succeeded in improving water quality by reducing pH and ammonia levels. Moreover, YSE supplementation markedly alleviated chronic ammonia-induced adverse impacts on fish growth by increasing the final body weight (FBW), specific growth rate (SGR), feed intake and protein efficiency ratio (PER) while reducing the feed conversion ratio (FCR) via improvements in food intake, elevation of hepatic insulin-like growth factor (ILGF-1) and suppression of myostatin (MSTN) expression levels with the restoration of lipid reserves and the activation of lipogenic potential in adipose tissue as demonstrated by changes in the circulating metabolite levels. In addition, the levels of hepato-renal injury biomarkers were restored, hepatic lipid peroxidation was inhibited and the levels of hepatic antioxidant biomarkers were enhanced. Therefore, the current study suggests that YSE supplementation exerted an ameliorative role against chronic ammonia-induced oxidative stress and toxic effects due to its free radical-scavenging potential, potent antioxidant activities and anti-inflammatory effects.

scholarly journals Effect of methionine supplementation on the growth performance of rabbit

2013 ◽  
Vol 42 (1) ◽  
pp. 40-43 ◽  
Author(s):  
S Yesmin ◽  
ME Uddin ◽  
R Chacrabati ◽  
M Al-Mamun
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Basal Diet ◽  
Nutrient Digestibility ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Methionine Supplementation ◽  
Four Levels

The present study was conducted to evaluate the effect of different levels of methionine supplementation on feed intake, nutrient digestibility and growth performance of growing rabbit. Sixteen weaned crossbred New Zealand White (NZW) growing rabbits (30-35 d) were distributed into four treatment groups having four replications in each group using a Completely Randomized Design (CRD). Basal diet composed of green grass (dhal grass) and concentrate mixture which was offered ad libitum basis for 56 days period. Four levels of methionine such as 0.0% (control), 0.15%, 0.25%, and 0.35% were supplemented randomly to rabbits. Results showed that supplementation of methionine did not affect green grass intake. Cumulative as well as daily concentrate and DM intake were significantly (p<0.05) higher for all methionine groups than control group. Final body weight gain as well as daily, weekly and cumulative body weight gains were improved significantly with increasing level of methionine. It was found that methionine had significant (p<0.01) effect on digestibility of DM, CP, NFE and EE but CF digestibility did not differ significantly. Digestibility was improved with increasing the level of methionine. Feed conversion ratio also decreased significantly with methionine supplementation, and 0.25% methionine group showed the best performance among the four treatments. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15777 Bang. J. Anim. Sci. 2013. 42 (1): 40 43

scholarly journals Effect of Green Algae Chaetomorpha antennina Extract on Growth, Modulate Immunity, and Defenses against Edwardsiella tarda Infection in Labeo rohita

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2033
Author(s):  
Govindharajan Sattanathan ◽  
Vairakannu Tamizhazhagan ◽  
Swaminathan Padmapriya ◽  
Wen-Chao Liu ◽  
Balamuralikrishnan Balasubramanian
Keyword(s):  
Body Weight ◽  
Immune Modulation ◽  
Labeo Rohita ◽  
Neutrophil Function ◽  
The Body ◽  
Edwardsiella Tarda ◽  
Control Group ◽  
Average Weight ◽  
Feed Conversion ◽  
Serum Lysozyme

The current study focused on assessing the outcome of methanol extract of Chaetomorpha antennina (MECA) on the growth performance and immune modulation in both specific and non-specific immune responses through the assessment of neutrophil, serum lysozyme, serum myeloperoxidase, antiprotease, ceruloplasmin, reactive oxygen species (ROS), and reactive nitrogen species (RNS) activity in Labeo rohita (rohu) at 28 days post treatment along with assessment of the disease resistance capacity against Edwardsiella tarda at 30days post immunization. Fishes (n = 144; average weight 50.0 ± 0.23 g) were evenly divided into four treatments, with 12 fishes per tank in triplicates. The MECA was injected intraperitoneally in the fishes at different doses as 0, 25, 75, and 150 mg/kg of the body weight. The results demonstrated that fish treated with MECA have an increased body weight, specific growth rate, and feed conversion ratio (p < 0.05) with respect to the control group. Results suggested that the MECA inclusion can significantly enhance (p < 0.05) the levels of serum lysozyme, neutrophil function, serum antiprotease activity, cellular RNS, and ROS production. Exposure to MECA of 75 mg/kg showed a significantly higher survival percentage against E. tarda disease infection. These results indicate MECA as a stimulant of immunity in L. rohita against E. tarda. The results suggested that MECA is a potent immunostimulant in finfish aquaculture and can offer higher economic welfare.

scholarly journals Effect of using Spirulina platensis in place of vitamin mineral premix in feed on the performance of broiler

2021 ◽  
Vol 50 (1) ◽  
pp. 64-72
Author(s):  
KMS Islam ◽  
MR Debi ◽  
R Haque ◽  
SN Moury
Keyword(s):  
Control Diet ◽  
Negative Control ◽  
Poultry Feed ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Complete Replacement ◽  
Blue Green Algae ◽  
Group 5 ◽  
Group 1

Feed of commercial broiler fortified by the external sources of vitamin and minerals which is expensive and increase the cost of feed. Blue green algae (Spirulinaplatensis) would be an alternative to those synthetic micronutrients after production in laboratory scale was studied in broiler.Spirulinaplatensiswas cultured in inorganic media contained macronutrients NaHCO3, K2HPO4, NaNO3, K2SO4, NaCl, MgSO4.7H2O, CaCl2, and FeSO4.2H2O and micronutrient solution containing H3BO4, MnCl2.4H2O, ZnSO4.7H2O, CuSO4.5H2O, MoO3, CoCl2.6H2O. Media was autoclaved and Spirulinawas cultured for 12 hours lighting with continuous aeration for 15 days to use in poultry feed. Day old broiler chick (180) was reared offering starter mash diet for 7 days. Birds were divided into 6 groups having 30 birds in each (10 per cage). Birds were offered 1. Control diet, 2. 75% premix+25% Spirulina, 3. 50% premix+50% Spirulina, 4. 25% premix+75% Spirulina, 5. 0% premix+100% Spirulina and 6. 0% premix+0% Spirulina (negative control). Spirulinawas calculated on DM basis added minerals in the media. After 21 days (28 day old) final body weight was 1039, 1070, 1044, 1065, 1117 and 893 g/bird in group 1, 2, 3, 4, 5 and 6 where higher (P<0.5) weight observed in Spirulinagroup (5). Feed intake was observed more or less similar in all groups (1483±24g). Feed conversion ratio was 1.72, 1.65, 1.69, 1.62, 1.61 and 1.99 in group 1, 2, 3, 4, 5 and 6 respectively (P<0.5) where higher in negative control group (6) and control group (1), but was lowest in 75% Spirulinagroup (4) and highest (100%) Spirulina group (5). Ash% is also highest in 100% Spirulina group 5 (55.07) than any other group. Considering growth performance of broiler, complete replacement of vitamin-mineral premix could be possible by cultured Spirulinaalong with media in broiler diet. Bang. J. Anim. Sci. 2021. 50 (1):64-72

scholarly journals A mixture of β-glucan and mannanoligosaccharide ameliorated the growth rate, digestive enzyme activity, intestinal morphometry, and immunity of common carp (Cyprinus carpio)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fawzy I. Magouz ◽  
Mahmoud F.I. Salem ◽  
Aliaa E.I. Emara ◽  
Mohamed M. Hassan ◽  
Mahmoud A.O. Dawood
Keyword(s):  
Growth Rate ◽  
Common Carp ◽  
Digestive Enzyme ◽  
White Blood Cells ◽  
Aquatic Organisms ◽  
Basal Diet ◽  
Control Group ◽  
Feed Conversion ◽  
Final Weight ◽  
Intestinal Morphometry

Abstract The feasible strategies to keep up the growth and wellbeing of aquatic organisms by using beneficial dietary additives is highly recommended. Among these additives, β-glucan (BG) and mannanoligosaccharide (MOS) were examined on common carp performances in the current experiment. For 80 days, carps fed four diets with 0%, 1%, 2%, and 3% BG/MOS (1:1) and distributed in four groups (triplicates). Higher final weight and weight gain (P < 0.05) were detected in carps fed 1%, 2%, and 3% of BG/MOS than the control group. The feed conversion ratio showed lower values (P < 0.05) in carps-fed BG/MOS mixture at 2%, and 3% than 0% and 1% levels. The activities of amylase, lipase, and protease were higher in fish fed BG/MOS mixture than the control group. Interestingly, fish fed BG/MOS mixture had markedly increased villi length and width with branched villi integrity. Further, the count of goblet cells was increased (P < 0.05) in groups fed BG/MOS mixture than carps fed the basal diet. The hemoglobin and hematocrit levels and the counts of red and white blood cells were higher in carps fed BG/MOS mixture than the control with the highest counts in 3% level. Additionally, the blood total protein, globulin, and phagocytic activity were higher (P < 0.05) in groups received BG/MOS mixture at 3% than the control. The lysozyme had a higher value in 1% group than the control (P < 0.05). Therefore, using the mixture of BG/MOS at 2-3% is suggested for improving the growth rate, intestinal health, blood health, and immunity of common carp.

scholarly journals Growth performance, haematological and biochemical indices of grazed Red Sokoto bucks supplemented with dried ripe plantain peels.

2020 ◽  
Vol 47 (2) ◽  
pp. 264-270
Author(s):  
A. I. Ukanwoko ◽  
N. C. Douglas ◽  
N. C. Igwe
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Conversion Ratio ◽  
The Body ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Blood Profile ◽  
Biochemical Indices

This study was conducted to evaluate the growth performance and blood profile of grazedRed Sokoto bucks supplemented with dried ripe plantain peels. Nine bucks were used for thisexperiment. The goats were apportioned to three treatment diets and dried ripe plantainpeels incorporated at 0%, 5% and 10% inclusion levels for T , T and T respectively. The 1 2 3,bucks were taken out for grazing in the morning (9.00am – 12noon) and thereafter fed theexperimental diet. The experiment lasted for eight (8) weeks. The animals were weighed atthe beginning of the experiment and weekly afterwards. Feed intake was calculated as thedifference between feed served and refusal. Blood samples of the bucks were collected todetermine the blood profile using disposable syringes and sterile needles. Results showedthat the final body weight, body weight gain and feed conversion ratio (FCR) differedsignificantly (P<0.05). The final body weight, body weight gain and FCR were 18.02kg,2.01kg, 3.42; 20.75kg, 3.89kg, 1.26 and 21.35kg, 4.80kg, 1.10 for T , T and T respectively. 1 2 3,Platelet, Alkaline phosphatase (ALP), total protein (TP), urea and creatinine values differedsignificantly (P<0.05). The highest platelet was recorded for bucks on T (212.91x10 3/ul) 3while the lowest was for bucks on T (202.30x103/ul). ALP, TP, urea and creatinine values 1were 29.00u/l, 60.00g/l, 8.00m/mol,72.50m/mol; 30.30u/l, 52.30g/l, 10.00m/mol,141.00m/mol and 42.00u/l, 53.30g/l, 9.70m/mol, 112.30m/mol for T , T and T , respectively. 1 2 3The inclusion of supplemental dried ripe plantain peels in the diet of Red Sokoto bucksenhanced the body weight and did not have any adverse effect on their blood profile.

scholarly journals Replacement of vitamin-mineral premix by Spirulina and its effect on the performance of broiler

2018 ◽  
Vol 2 ◽  
pp. 39
Author(s):  
Shahinur Nahar Moury ◽  
Md. Touhiduzzaman Sarker ◽  
Adhita Sri Prabakusuma ◽  
Md. Imrul Hasan Russel ◽  
Md. Shahidul Islam
Keyword(s):  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Group 4 ◽  
Group 6 ◽  
Group 5 ◽  
And Control ◽  
Group 1

The main purpose of this study was to explore the effects of Spirulina (Spirulina platensis) as a feed supplement by replacing Vitamin-Mineral Premix on the performance of broiler. The study explored that final body weight was 1039, 1070, 1044, 1065, 1117 and 893 g/bird in group 1, 2, 3, 4, 5 and 6 where significantly (p<0.5) higher weight observed in Spirulina group (5) but lower in negative control group (6). Feed intake observed more or less similar in all groups (1483±24g; p>0.5). Feed conversion ratio (kg FI/kg LWG) observed significantly different like 1.72, 1.65, 1.69, 1.62, 1.61 and 1.99 in group 1, 2, 3, 4, 5 and 6 respectively (p<0.5) where higher in negative group (6) and control group (1), but is lowest and similar in 75% Spirulina group (4) and highest (100%) Spirulina group (5). %Ash of different dietary groups were 46.35, 46.54, 48.93, 49.93, 55.07 and 46.92 of group 1, 2, 3, 4, 5 and 6 respectively. The %ash of bone was gradually increased among dietary groups and the best result was obtained in 100% Spirulina group 5 (55.07). It also revealed that diets containing no vitamin-mineral premix with 100% Spirulina improve the performance of broiler. The findings suggest that poultry farmer can use spirulina as a feed item for broiler for more yield.

Sign in / Sign up

Export Citation Format

Share Document