Improved Growth and Nutritional Quality of Pangas Catfish, Pangasius hypophthalmus (Sauvage, 1878) by Enzyme Supplementation

Pangas catfish, Pangasius hypophthalmus is one of the most widely cultured fish species in Asia. The growth and flesh quality of fish depend largely on the quality and composition of feed. Inclusion of exogenous enzyme can improve the palatbility and digestibility of feed. However, there is a lack of research on the use of exogenous enzymes in fish diet for improved growth and nutritional quality of fish. Thus, in the current study, the effects of enzyme inclusion in fish diet were evaluated using pangas catfish as an experimental animal. The study was conducted in a laboratory condition with a flow-through system where 12 plastic tanks with 750 L water capacity were used where the tanks were grouped randomly. Each tank was stocked with 15 fingerlings of pangas catfish. Three different concentrations (3, 4 and 5% of the total feed) of Zymex, a commercially available ulti-enzyme were used for treatment groups along with a control group with no enzyme supplementation. The length-weight relationship of the experimental fish using the initial and final data was established where a significantly positive relationship was found (P<0.05). Growth performance including condition factor, specific growth rate and feed conversion ratio was significantly improved by 3% enzyme supplementation (P<0.05). Average daily gain did not vary significantly between treatments. Three percent enzyme supplementation in the diet significantly increased crude protein and lipid contents and reduced moisture content (P<0.05). Significantly higher ash content was found in fish fed both 3 and 5% enzyme contained diet (P<0.05). In case of body indices, 5% enzyme supplementation provided significantly higher viscerosomatic index (P<0.05) while 3% provided significantly higher flesh yield (P<0.05). However, hepatosomatic index did not vary significantly between treatments. From the findings it is concluded that enzyme supplementation at 3% of the diet can improve the growth performance and nutritional quality of pangas catfish.

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Effects of daidzein on growth performance, blood metabolites and meat quality of finishing Xianan beef cattle

The Journal of Agricultural Science ◽

10.1017/s0021859619000340 ◽

2019 ◽

Vol 157 (2) ◽

pp. 169-175

Author(s):

H. Liang ◽

X. H. Zhao ◽

K. Pan ◽

L. J. Xu ◽

Z. H. Yi ◽

...

Keyword(s):

Beef Cattle ◽

Growth Performance ◽

Meat Quality ◽

Average Daily Gain ◽

Control Group ◽

Feed Conversion ◽

Final Body Weight ◽

Blood Biochemical ◽

Lower Shear

AbstractAn experiment was conducted to determine the effects of supplementing different amounts of daidzein in a diet on the growth performance, blood biochemical parameters and meat quality of finishing beef cattle. Thirty finishing Xianan steers were distributed in three groups equilibrated by weight and fed three different dietary treatments (concentrate ratio = 80%): (1) control; (2) 500 mg/kg daidzein and (3) 1000 mg/kg daidzein, respectively. Steers were slaughtered after an 80-day feeding trial. Results showed that daidzein supplementation had no effect on the final body weight, average daily gain and feed conversion rate of steers. Steers fed with 1000 mg/kg daidzein had greater dry matter intake than those fed with control diets. Compared with the control group, the 1000 mg/kg daidzein group had a higher fat thickness, lower shear force and lightness. The pH, drip loss, cooking loss, redness (a*), yellowness (b*), moisture, ash, crude protein and intramuscular fat of the Longissimus dorsi muscle were unaffected by daidzein supplementation. Compared with the control group, the 1000 mg/kg daidzein group significantly increased the serum concentrations of insulin, free fatty acid and Glutamic-pyruvic transaminase. The 500 mg/kg daidzein group significantly increased the serum concentration of tetraiodothyronine compared with the control group. Supplemental daidzein did not affect the blood antioxidant ability and blood immune parameters in serum. In conclusion, daidzein supplementation above 500 mg/day modifies feed intake and metabolic and hormonal profile, with positive and negative effects on meat quality.

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Effect of BioPlus YC Probiotic Supplementation on Gut Microbiota, Production Performance, Carcass and Meat Quality of Pigs

Animals ◽

10.3390/ani11061581 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1581

Author(s):

Artur Rybarczyk ◽

Elżbieta Bogusławska-Wąs ◽

Alicja Dłubała

Keyword(s):

Bacillus Subtilis ◽

Meat Quality ◽

Bacillus Licheniformis ◽

Average Daily Gain ◽

Production Performance ◽

Probiotic Bacteria ◽

Control Group ◽

Production Traits ◽

Feed Conversion

The objective of the study was to determine the effects of probiotic bacteria Bacillus licheniformis and Bacillus subtilis on microbiological properties of feed mixtures and on the digestive tract content as applicable to production traits and carcass characteristics of fatteners. The experiment was performed on 83,838 fatteners from four successive (insertions) productions in two groups. From the seventy eighth day of age till marketing to the slaughter plant, the pigs were supplied with BioPlus YC probiotic (Chr. Hansen) in the amount of 400 g/t. The preparation contained a complex of probiotic bacteria Bacillus licheniformis DSM 5749, and Bacillus subtilis DSM 5750 spores in a 1:1 ratio. From the fourth insertion, after reaching a body weight of approximately 112 kg, 60 fatteners were selected from each group to measure carcass quality and half of them for meat quality evaluation. Moreover, microbiological analyses in feed and colon were performed. The study showed that BioPlus YC probiotics supplementation resulted in a significantly higher count of B. subtilis and B. licheniformis in the feed, a higher count of B. subtilis, B. licheniformis and LAB, as well as a lower count of Enterobacteriaceae, Enterococcus, Clostridium and Bacillus sp. in the mucosa and in the colorectal content of the test pigs. Our work has shown that supplementation with the BioPlus YC probiotic had a positive effect on the production traits of pigs mainly by reducing mortality (2.83%, p = 0.010), lowering feed conversion ratio—FCR (2.59 kg/kg, p = 0.013), better average daily gain—ADG (0.95 kg/day, p = 0.002) and shorter fattening period (77.25 days, p = 0.019) when compared to the control group (4.19%; 2.79 kg/kg; 0.89 kg/day; 92.8 days, respectively). The addition of the specific Bacillus bacteria did not influence carcass and meat characteristics of the test fatteners.

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Combined administration of bacteriocin- -producing, probiotic strain Enterococcus faecium CCM7420 with Eleutherococcus senticosus and their effect in rabbits

Polish Journal of Veterinary Sciences ◽

10.2478/pjvs-2013-0089 ◽

2013 ◽

Vol 16 (4) ◽

pp. 619-627 ◽

Cited By ~ 9

Author(s):

M. Pogány Simonová ◽

A. Lauková ◽

L. Chrastinová ◽

I. Plachá ◽

V. Strompfová ◽

...

Keyword(s):

Growth Performance ◽

Enterococcus Faecium ◽

Average Daily Gain ◽

Probiotic Strain ◽

Cholesterol Concentration ◽

Control Group ◽

Feed Conversion ◽

Eleutherococcus Senticosus ◽

Commercial Diet ◽

And Control

Abstract The effect of Enterococcus faecium CCM7420 (EF) - enterocin-producing and probiotic strain of rabbit origin, Eleutherococcus senticosus extract (ES) and their combination (ES+EF) was determined on selected bacteria in faeces and caecum content, leukocytes phagocytosis, blood biochemistry and growth performance. Ninety-six weaned rabbits were divided into 3 experimental (ES, EF, ES+EF) and control group (CG). The rabbits in the groups ES and EF+ES were fed commercial diet enriched with E. senticosus extract (30 g/100 kg feed), rabbits in groups EF and CG were fed untreated diet. The rabbits in the EF and ES+EF groups were administered with an overnight culture of E. faecium CCM7420 strain (500 μl/animal/day into water, 109 CFU/ml). The treatment period lasted 21 days. The microbiological examinations in faecal samples confirmed the presence of E. faecium CCM7420 strain. In groups EF and ES+EF, the reduction of faecal coliforms, Pseudomonas-like sp., Clostridium-like sp. and S. aureus was recorded. Leucocyte phagocytosis significantly increased in all experimental groups (P<0.0001) compared to CG. The lowest GPx values were measured in the ES+EF group. Higher total protein, triglycerides and calcium concentrations were detected in experimental groups compared to CG. The cholesterol concentration decreased in the ES group. The highest average daily gain was recorded in EF group; in ES+EF the better feed conversion ratio and no mortality was recorded. These results indicated that the dietary supplementation with the E. faecium CCM7420 and E. senticosus extract stimulate the leukocytes phagocytosis and reduces the potential pathogens in rabbits digestive tract without oxidative stress and improve the growth performance.

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Effects of Long-Term Gentle Handling on Behavioral Responses, Production Performance, and Meat Quality of Pigs

Animals ◽

10.3390/ani10020330 ◽

2020 ◽

Vol 10 (2) ◽

pp. 330 ◽

Cited By ~ 2

Author(s):

Chao Wang ◽

Yongjie Chen ◽

Yanju Bi ◽

Peng Zhao ◽

Hanqing Sun ◽

...

Keyword(s):

Heart Rate ◽

Meat Quality ◽

Average Daily Gain ◽

Production Performance ◽

Control Group ◽

Carcass Quality ◽

Feed Conversion ◽

Significant Difference

In order to investigate the effect of gentle handling on the behavior, performance, and meat quality of pigs from weaning to slaughter, 144 6-week-old weaned hybrid Min piglets (a native breed) were selected and divided into a handling group (HG: 9 pens × 8 pigs) and a control group (CG: 9 pens × 8 pigs). After 6 weeks of handling, we observed and then evaluated the pigs’ responses to a handler with behavioral scores. Moreover, we measured heart rate and production performance. Three pigs were randomly selected from each of the 18 pens and divided into a handling group (HG: n = 27) and a control group (CG: n = 27), and the HG pigs were given gentle handling until slaughter. Subsequently, we evaluated meat quality and the production performance of six pigs from each group. The results show that AA test (approaching–avoidance test) scores in HG pigs, the number of contacts with the handler and absence of contact with the handler, were significantly higher than in the CG pigs (p < 0.01). The occurrences of avoidance and looking at the handler were lower in the HG than in the CG group (p < 0.01); however, heart rate was not found to be significantly different between the two groups (p = 0.63). No significant difference was found in the average daily gain, average daily feed intake, and feed conversion ratio between the two groups during the two periods (p > 0.05). The b* value was determined 45 min after slaughter, and it was significantly lower in the HG than that in the CG group (p = 0.002). Furthermore, 2 h after slaughter, the L value of the HG group was significantly higher than that of the CG group (p = 0.047), but no difference was observed in carcass quality or other meat quality indicators between the two groups (p > 0.05). The results indicate that gentle handling could reduce pigs’ anxiety and increase their willingness to approach the handler, increasing the intimacy of the pigs and handlers. However, long-term gentle handling had little effect on pig performance, carcass quality, and meat quality.

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By-products of apricot processing in quail feed: Effects on growth performance, carcass characteristics, and meat physicochemical quality

Veterinary World ◽

10.14202/vetworld.2021.878-883 ◽

2021 ◽

Vol 14 (4) ◽

pp. 878-883

Author(s):

Fatma Boubekeur ◽

Rafik Arbouche ◽

Yasmine Arbouche ◽

Fodil Arbouche

Keyword(s):

Growth Performance ◽

Soybean Meal ◽

Average Daily Gain ◽

Carcass Characteristics ◽

Live Weight ◽

Partial Substitution ◽

Control Group ◽

Feed Conversion ◽

Carcass Yield ◽

By Products

Background and Aim: The rearing of quails can have a stronger attraction for the breeders if we lower the cost prices by introducing by-products in their feed formulas. The aim of this study was to evaluate the effects of the partial substitution of soybean meal by apricot kernel cake (AKC) in the diet of quails, applied either sequentially or during all phases of rearing, on their growth performances, carcass characteristics, and meat physicochemical composition. Materials and Methods: A total of 600 one-day-old quails (Coturnix coturnix japonica), with equal sex ratio and weighing on average 7±0.2 g, were randomly distributed in one control group and three experimental groups, the latter being designed according to the rate of application of AKC in either sequential or non-sequential mode in different rearing phases. Each group was divided into five replicates of 30 quails, randomly distributed according to either substitution rate of soybean meal by the AKC (0%, 10%, 20%, or 30%) or farming phase. Results: The average daily gain from the 1st to 45th days (average daily gain1–45d) was found to be the highest (4.24 g/d/subject, p=0.021) for the 30% AKC-supplemented feed lot in either starter or finish incorporation (DFTAA), having an optimum final live weight of 193.4 g (p=0.028), a lowest feed conversion ratio of 3.08 (p=0.001), and a daily feed intake of 860 g (p=0.01). Carcass yield was recorded the highest (74.4%, p=0.02) with an optimum meat protein level (30.6%, p=0.024) and the lowest fat content (2.26%, p=0.001) for the same group as well. Conclusion: The partial substitution of soybean meal by AKC in the quails' fattening feeding, during the finishing phase and for all rearing phases, led to a better growth performance, a better carcass yield, and an improved chemical composition of meat.

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Impact of Fermented Liquid Potato Hash Diets on Growth Performance of Grower Pigs

Journal of Agricultural Science ◽

10.5539/jas.v10n6p1 ◽

2018 ◽

Vol 10 (6) ◽

pp. 1

Author(s):

Sylvester Thomas ◽

Arnold Tapera Kanengoni ◽

Michael Chimonyo

Keyword(s):

Growth Performance ◽

Average Daily Gain ◽

Growing Pigs ◽

Feed Conversion ◽

Exogenous Enzyme ◽

Randomized Design ◽

Inclusion Rate ◽

Feed Source ◽

Dietary Treatments ◽

Daily Gain

The study aimed to evaluate growth performance of grower pigs fed fermented liquid potato hash with or without exogenous enzyme. Diets containing either 200 (LFLPH) g/kg potato hash (enzyme treated or not); 400 (HFLPH) g/kg potato hash (enzyme treated or not) or no fermented potato hash (control) were formulated to provide 14 MJ/kg digestible energy (DE), 180 g/kg crude protein (CP) and 11.6 g/kg lysine. Dietary treatments were control (no FLPH), enzyme treated LFPHE and HFLPHE, and untreated LFLPH and HFLPH. The exogenous enzyme was added in treated diets to provide minimum of 560-840 TXU/TDU xylanase per kg feed, at an inclusion rate of 100 g/tonne. Diets were mixed with water at 1:2 ration and fermented for 8 hours at 25 °C room temperature before being fed to pigs. Back-slopping fermentation approach was followed to prepare diets. Twelve pigs (25±2.3 kg) per diet that were individually housed were fed ad-lib for eight weeks. Pigs were allocated to diets in complete randomized design. Average daily gain (ADG), average daily feed intake (ADFI) and feed conversion ratio (FCR) were measured. The enzyme treated FLPH diets had higher (P < 0.05) CP, lower (P > 0.05) NDF and ADF concentrations compared to untreated FLPH diets. The LFPHE diet had higher (P < 0.001) final weight, ADG and lower (P < 0.001) ADFI and FCR compared to LFPH, HLFPH and HLFPHE. It was concluded that LFPHE diet may be an alternative feed source for growing pigs as indicated by higher gain and lower intake compared to LFLPH, HFLPH and HFLPHE.

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Effects of lipopolysaccharide on the growth performance, nitrogenmetabolism and immunity in preruminant calves

Indian Journal of Animal Research ◽

10.18805/ijar.v0iof.6831 ◽

2016 ◽

Author(s):

N. Zhan ◽

H. Li ◽

C. Jiang ◽

Y. Tu ◽

D. Diao

Keyword(s):

Growth Performance ◽

Average Daily Gain ◽

Nitrogen Retention ◽

Utilization Efficiency ◽

Control Group ◽

Urinary Concentration ◽

Feed Conversion ◽

Sterile Saline ◽

E Coli ◽

Lps Challenge

To investigate the effect of lipopolysaccharides (LPS) on the growth performance, nitrogen metabolism and immunity in preruminant calves, forty Chinese Holstein male calves were randomly divided into two groups and injected intraperitoneally with 2.5 mg/kg BW of sterile saline or E. coli LPS (Escherichia coli O55:b55) on day 24, 26, and 28. The LPS challenge decreased average daily gain and feed conversion efficiency compared with control group (p less than0.05). The urinary concentration of nitrogen (pless than0.05) increased, whereas the nitrogen retention decreased (pless than0.05) after LPS-challenge. Injection of LPS increased body temperature, serum concentration of IL-1, TNF-a, IL-2 and IgG of calves. In conclusion, LPS-challenge activated immune responses, decreased utilization efficiency of nitrogen, and negatively impacted growth performance of preruminant calves.

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Nutritional effects pre-weaning on growth performance, carcass traits and meat quality of pigs

Animal Production Science ◽

10.1071/an18368 ◽

2020 ◽

Vol 60 (7) ◽

pp. 978

Author(s):

Hong Chen ◽

Yan Liu ◽

Hui Li ◽

Zhengfeng Fang ◽

Yan Lin ◽

...

Keyword(s):

Serum Concentration ◽

Growth Performance ◽

Meat Quality ◽

Average Daily Gain ◽

Carcass Traits ◽

Suckling Period ◽

Feed Conversion ◽

Cross Sectional ◽

Nutritional Restriction

The objective of the present study was to investigate the effect of nutritional restriction during the suckling period on growth performance, carcass traits and meat quality of fattening pigs. A one-way experimental design was used. In total, 24 male pigs of normal birthweight (1.54 ± 0.05 kg) were randomly allocated at 7 days of age to three groups: control, fed ad libitum; 30% nutritional restriction (Re30%); and 60% nutritional restriction (Re60%). The Re30% and Re60% groups showed decreased average daily gain, average daily feed intake and feed conversion ratio from Day 7 to Day 28. After Day 28, differences in these parameters were observed only in the Re60% group relative to the control. With regard to hormone levels, the Re60% group showed decreased serum concentration of insulin-like growth factor-1 at Day 28 and increased serum concentration of growth hormone at Day 147. Furthermore, the Re60% group had decreased carcass weight, ham weight and dressing percentage, and increased carcass lean percentage relative to the control, as well as lower cross-sectional area and myofibre diameter of muscle. The Re60% group had lower levels of myosin heavy chain (MyHC) IIx and MyHC IIb mRNA and a higher percentage of MyHC I and MyHC IIa mRNA in longissimus dorsi muscle than the Re30% group. In conclusion, nutritional restriction during the suckling period decreased weaning weight, with post-weaning growth performance, carcass traits and myofibre type affected in the Re60% group rather than Re30% group.

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The growth and meat quality of Siamese catfish fed different level of protein

Jurnal Akuakultur Indonesia ◽

10.19027/jai.14.104-111 ◽

2015 ◽

Vol 14 (2) ◽

pp. 104

Author(s):

Novieanto Purnomo ◽

Nur Bambang Priyo Utomo ◽

Zafril Imran Azwar

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Hepatosomatic Index ◽

Liver Protein ◽

Feed Conversion ◽

Commercial Diet ◽

Pangasianodon Hypophthalmus ◽

Protein Levels ◽

Protein Diets

ABSTRACT This study was to evaluate growth performance and meat quality of Siamese catfish Pangasianodon hypophthalmus fed on commercial diets with different protein levels. Fish with average initial body weight of 33,61 g were reared in hapa (2×2×1 m3) at density of 30 ind/hapa. Fish were hand-fed with experimental diet to satiety twice daily for 60 days. Experimental design was set in completely randomized design. Each treatment was done in triplicates. Experimental diets were a commercial diet to contain four differennt levels of protein; i.e. diet A (18%), diet B (23%), diet C (28%), and diet D (32%). Specific growth rate (SGR), feed conversion ratio (FCR), protein (RP) and lipid (RL) retention, hepatosomatic index (HSI), lipid and glycogen content of liver, protein and lipid content of meat, edible portion, and fillet textural were calculated. The results of the experiment showed that the highest weight gain and SGR, lowest FCR and meat protein were obtained in the group of fish fed 23%–32% protein diets. In conclusion, 23% protein diets gave the best growth performance and meat quality of Siamese catfish. Keywords : growth performance, meat quality, commercial diet, Pangasianodon hypophthalmus ABSTRAK Penelitian ini bertujuan untuk mengevaluasi kinerja pertumbuhan dan kualitas daging ikan patin siam Pangasianodon hypophthalmus yang diberi pakan komersial dengan kandungan protein berbeda. Ikan patin yang digunakan dengan bobot awal 33,61 g ditebar sebanyak 30 ekor/hapa ukuran 2×1×1 m3 dan ikan diberi pakan percobaan dua kali sehari secara at satiation selama 60 hari. Penelitian ini didesain dalam rancangan acak lengkap dengan empat perlakuan dan tiga ulangan. Pakan yang digunakan adalah pakan komersial dengan empat kandungan protein yang berbeda: pakan A (18%), pakan B (23%), pakan C (28%), dan pakan D (32%). Parameter uji pada penelitian ini adalah laju pertumbuhan spesifik (SGR), rasio konversi pakan (FCR), retensi protein (RP), retensi lemak (RL), indeks hepatosomatik (HSI), lemak dan glikogen hati, protein dan lemak daging, serta tekstur daging. Hasil penelitian menunjukan bahwa penambahan bobot tubuh, SGR tertinggi, FCR terendah, dan protein daging diperoleh pada perlakuan protein pakan 23%–32%. Hasil penelitian ini menunjukkan bahwa perlakuan protein pakan 23% memberikan kinerja pertumbuhan dan kualitas daging ikan terbaik. Kata kunci: kinerja pertumbuhan, kualitas daging, pakan komersial, Pangasianodon hypophthalmus

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The growth performance and immunity of broiler chickens affected by dietary chitosan oligosaccharides

10.21203/rs.3.rs-17914/v1 ◽

2020 ◽

Author(s):

Hang Zhao ◽

Saikun Pan

Keyword(s):

Growth Performance ◽

Broiler Chickens ◽

Average Daily Gain ◽

Control Group ◽

High Dose ◽

Feed Conversion ◽

Chitosan Oligosaccharides ◽

Feeding Trials ◽

Factor Α ◽

Necrosis Factor

Abstract Background: The present study aimed to explore the effects of dietary chitosan oligosaccharides (COs) on the growth performance and immunity of broiler chickens.Methods: Four test diets were supplemented with different doses of COs (0, 50, 100 and 150 mg/kg) and formulated. Triplicate groups of broiler chickens were fed with one of the diets ad libitum for 6 weeks. Results: After the end of the feeding trials, oral CO administration improved average daily gain; the activities of digestive amylase, lipase and protease; the activities of serum superoxide dismutase and glutathione peroxidase; serum tumor necrosis factor-α, interleukin (IL)-1, IL-2, IgG, IgM and IgA levels; and reduced feed conversion ratio and malondialdehyde level compared with those of the control group. However, a high dose of CO (150 g/kg) did not further increase its efficiency compared with the moderate dose of CO (100 g/kg). Conclusions: Oral CO administration improved the growth performance and immunity of juvenile broiler chickens and could be used as a feed supplement.

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