Effect of oligochitosan supplementation on growth and innate immunity of striped catfish (Pangasianodon hypophthalmus) at pond culture

Oligochitosan (COS) was prepared by gamma Co-60 irradiation of chitosan/H2O2 solutions and mixed with cornstarch to form the powder with content of 100 000 mg COS/kg. The striped catfish (P. hypophthalmus) was fed with diets containing 100 mg COS/kg feed for 9 months at pond culture. The effects of COS supplementation on growth performance, feed conversion ratio (FCR) and survival rate in striped catfish were investigated. The results indicated that the growth performance and survival rate of striped catfish fed with 100 mg COS/kg were significantly improved and the FCRdecreased. The average weight gain, survival rate and FCR of striped catfish fed with diets containing COS were 971 ± 85 gram, 83.19 ± 0.35 % and 1.477 ± 0.013 in comparison with 896 ± 78 gram, 78.43 ± 0.64 % and 1.578 ± 0.038 of control group, respectively. Thus, COS can be potentially utilized as immunostimulants and growth promoter for aquaculture.

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Research on the Influence of the Light and Sexing on Growth Performance and Slaughter Results at Young Quails from Mixed Baloteşti Population of Eggs-Meat

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Animal Science and Biotechnologies ◽

10.15835/buasvmcn-asb:12201 ◽

2017 ◽

Vol 74 (1) ◽

pp. 15

Author(s):

Lucian IONITA ◽

Elena POPESCU-MICLOSANU ◽

George NICA ◽

Cornel Octavian PANA

Keyword(s):

Weight Gain ◽

Growth Performance ◽

Conversion Rate ◽

Live Weight ◽

Control Group ◽

Average Weight ◽

Feed Conversion ◽

Feed Conversion Rate ◽

Average Weight Gain ◽

Experimental Group

The purposes of determining the influence of the light and sexing on growth performance and slaughter results atyoung quails from Balotesti population, was organized an experiment on 150 quails, betwen age of 28 and 70 days. The chicks were divided into two groups (control and experimental), and growth and slaughter performance were determined separately by sex. Have studied 2 lighting programs, a program of continous lighting with photoperiod duration of 16 hours (16 L + 8 N, control group) and a program with lighting with asymetric hours intervals with photoperiod duration of 16 hours (10L+2N+6L+6N, experimental group).Males and females from the experimental group were recorded average performance of growth high during the period 28 - 70 days. Live weight at age of 70 days was higher with 7.54 %, average weight gain was higher with 14.86 % and feed conversion rate was lower with 13.51 % at males from experimental group compared to males from the control group. Also, the live weight at the age of 70 days was higher with 18.09 %; average weight gain was higher with 35.12 %, while feed conversion rate was reduced with 30.08 % on females from the experimental group compared to females from the control group.The results of the slaughter at 70 days were superior in the caseof females from the both groups versus males. The average weight of the carcase was higher with 17.53 % in case of the females than that of males from the experimental group, and the carcase yield was 65.37 % at the females and 65.56 %Â for males. Also, the average weight of the carcase was higher with 5.08 % in case of females compared to that males from the control group, and the carcase yield was 64.20Â % to females 66.70 % on males.Superior results recorded in the case of females and males from the experimental group recommended the program of lighting with asymmetric hours intervals in the growth of youth quail. Also, the higher slaughter results recorded in the case of females of the two groups recommended them in the meat production through a broiler of quail that combine advantages in the production of both males and females.Â

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Growth performance and blood profiles of striped catfish (Pangasianodon hypophthalmus) fed leaves extract of Myrmecodia tuberosa

Nusantara Bioscience ◽

10.13057/nusbiosci/n110115 ◽

2019 ◽

Vol 11 (1) ◽

pp. 89-96

Author(s):

RUDY AGUNG NUGROHO ◽

ESTI HANDAYANI HARDI ◽

YANTI PUSPITA SARI ◽

RETNO ARYANI ◽

RUDIANTO RUDIANTO

Keyword(s):

Survival Rate ◽

Blood Cell ◽

Growth Performance ◽

Feed Efficiency ◽

Feed Utilization ◽

Feed Conversion ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish ◽

Feed Conversion Rate ◽

Blood Profiles

Abstract. Nugroho RA, Hardi EH, Sari YP, Aryani R, Rudianto. 2019. Growth performance and blood profiles of striped catfish (Pangasianodon hypophthalmus) fed leaves extract of Myrmecodia tuberosa. Nusantara Bioscience 11: 89-96. The application of plant extract in the aquaculture field is gaining momentum. This study aimed to determine the effects of M. tuberosa Jack leaves extract on the growth performance and blood profiles of striped catfish (Pangasianodon hypophthalmus). 400 fish with an initial average weight of 1.54 ± 0.02g were randomly divided into five groups and fed with different concentration of M. tuberosa Jack leaves extract (0.25, 0.5, 1, 2%) and control diet for 80 days. Growth performance, feed conversion rate, feed efficiency, survival rate, morphometric, and hematological profile of the fish were evaluated at the end of the trial. The results found that fish fed 0.5-1% concentration had significantly higher (P<0.05) growth, feed conversion rate, feed efficiency, morphometric value, survival, white blood cell, hemoglobin, neutrophil, lymphocyte, and monocyte than control. Meanwhile, supplementation of 2% MTE in the diet of fish reduced growth, feed utilization, viscerosomatic index, and morphometric values but increased red blood cell. All the supplemented diets decreased platelet of fish. The findings indicated that supplementation 0.5-1% of MTE is beneficial to the growth and blood profile of fish through the increment of growth indices, feed utilization, white blood cell, hemoglobin, neutrophil, lymphocyte, and survival rate of fish.

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PERFORMA PERTUMBUHAN, KOEFISIEN VARIASI, DAN HETEROSIS HASIL PERSILANGAN IKAN PATIN (Pangasius sp.) PADA TAHAP PENDEDERAN II

Jurnal Riset Akuakultur ◽

10.15578/jra.12.1.2017.21-28 ◽

2017 ◽

Vol 12 (1) ◽

pp. 21

Author(s):

Jadmiko Darmawan ◽

Evi Tahapari

Keyword(s):

Survival Rate ◽

Growth Performance ◽

Coefficient Of Variation ◽

Fish Farming ◽

Feed Conversion ◽

Farmed Fish ◽

Pangasianodon Hypophthalmus ◽

Total Length ◽

Final Weight ◽

Striped Catfish

Hibridisasi merupakan salah satu teknik pemuliaan ikan dalam rangka mendapatkan varietas unggul sehingga mampu meningkatkan nilai produksi suatu komoditas ikan yang dibudidayakan. Tujuan penelitian ini adalah untuk mengevaluasi performa pertumbuhan, koefisien variasi, dan nilai heterosis dari hasil persilangan tiga spesies ikan patin sebagai tetua, yaitu patin siam (Pangasianodon hypophthalmus), patin jambal (Pangasius djambal), dan patin nasutus (Pangasius nasutus) pada tahap pendederan II. Induk ikan patin siam dan patin jambal yang digunakan merupakan ikan yang sudah dirilis sebagai ikan budidaya, sedangkan induk ikan patin nasutus berasal dari perairan umum dan sedang dalam proses domestikasi sebagai ikan budidaya. Persilangan yang dibuat adalah: A) f patin jambal >< m patin jambal (JJ); B) f patin siam >< m patin jambal (SJ); C) f patin siam >< m patin siam (SS); D) f patin siam >< m patin nasutus (SN); dan E) f patin nasutus >< m patin nasutus (NN). Penelitian dilakukan secara indoor hatchery selama 30 hari pemeliharaan. Nilai heterosis dihitung berdasarkan laju pertumbuhan spesifik (LPS) bobot, LPS panjang total, dan sintasan. Hasil penelitian menunjukkan bahwa performa pertumbuhan, sintasan, dan konversi pakan ikan hasil persilangan tidak berbeda nyata (P>0,05). Ikan patin SN memiliki performa yang lebih baik dari tetuanya dengan nilai heterosis bobot akhir, LPS bobot, panjang total, LPS panjang total, dan sintasan berturut-turut sebesar 110,87%; 19,78%; 36,14%, 36,09%; dan 15,04%; serta nilai koefisien variasi berkisar antara 0,00-11,08. Bobot akhir, panjang total dan sintasan ikan patin SJ juga lebih baik dari tetuanya dengan nilai heterosis berturut-turut sebesar 46,00%; 11,27%; dan 2,27%; namun untuk heterosis LPS bobot dan LPS panjang total bernilai negatif (-6,65% dan -1,01%), serta nilai koefisien variasi berkisar antara 0,00-12,75. Berdasarkan hasil penelitian tersebut menunjukkan bahwa ikan patin hibrida SN berpotensi sebagai ikan budidaya dalam rangka peningkatan produksi ikan patin daging putih selain dari ikan patin hibrida SJ (pasupati) yang telah dirilis ke masyarakat.Hybridization is a fish breeding technique in order to obtain high yielding varieties as to increase the production value of a farmed fish. The purpose of this study was to evaluate the growth performance, the coefficient of variation and heterosis value of the result of crossing three species of catfish as a parent, which was striped catfish (Pangasianodon hypophthalmus), jambal catfish (Pangasius djambal) and nasutus catfish (Pangasius nasutus). Crosses made were A) f jambal catfish >< m jambal catfish (JJ); B) f striped catfish >< m jambal catfish (SJ); C) f striped catfish >< m striped catfish (SS); D) f striped catfish >< m nasutus catfish (SN); and E) f nasutus catfish >< m nasutus catfish (NN). The study was performed at the indoor hatchery for 30 days. Heterosis values were calculated based on the specific growth rate (SGR) final weight, SGR total length, and survival rate. The results showed that growth performance, survival rate, and feed conversion were not significantly different (P>0.05). Catfish SN has a better performance than the parent with the value of heterosis at final weight, SGR weight, total length, SGR total length, and survival rate of 110.87%, 19.78%, 36.14%, 36.09%, and 15.04%, respectively. The coefficient of variation ranged from 0.00 to 11.08. Final weight, total length, and survival of catfish SJ were also better than the parent with the heterosis value of 46.00%, 11.27%, and 2.27% respectively, but for heterosis SGR of the weight and the total length were negative (-6.65% and -1.01%) and the coefficient of variation ranged from 0.00 to 12.75. These results indicated that the hybrid catfish SN has a great potential as fish farming in the hope of increasing the production of white meat catfish hybrid apart from SJ (Pasupati) that have been released to the public.

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Triploid striped catfish Pangasianodon hypophthalmus: growth performance and gonadal development

Jurnal Akuakultur Indonesia ◽

10.19027/jai.16.1.76-82 ◽

2017 ◽

Vol 16 (1) ◽

pp. 76 ◽

Cited By ~ 1

Author(s):

Yusran Ibrahim ◽

Dinar Tri Soelistyowati ◽

Odang Carman

Keyword(s):

Survival Rate ◽

Growth Performance ◽

Gonadal Development ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

T Test ◽

Abnormal Development ◽

Feed Conversion ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish

ABSTRACT This study was aimed to evaluate the growth performance and gonadal development of diploid and triploid striped catfish Pangasianodon hypophthalmus. Triploids were produced through a heat shock method at 42 °C for two minutes, at two minutes after fertilization. Before treatment performed, group of triploid and diploid were separated through nucleolus counting confirmed cromoseme counting. Five individual of each group at the age of nine months were tagged and reared for two months. Parameter of growth performance, feed conversion ratio, and survival rate were analysed using independent-samples t-test at confidence interval 95%, while gonadosomatic index (GSI) and gonad histology were analysed descriptively. No significant differences were observed between diploid and triploid fish in terms of growth performance, feed conversion ratio, and survival rate (P>0.05) during the two months rearing period, while GSI was higher in diploid (P<0.05) compared to triploid females. Histological observations of triploid female gonads showed early development stage, indicating sterility through symptoms such as oocytes degradation and abnormal development. Meanwhile, male gonad developed faster compared to female as spermatids were found in several lobules. As conclusion, diploid and triploid striped catfish P. hypophthalmus growth performance did not differ up to the age of 11 months, although some sterility symptoms were observed in both male and female. Keywords: diploid, triploid, growth, gonad, Pangasianodon hypophthalmus ABSTRAK Penelitian ini bertujuan untuk mengevaluasi performa pertumbuhan dan perkembangan gonad ikan patin siam Pangasianodon hypophthalmus diploid dan triploid. Triploid diproduksi dengan kejut suhu panas pada suhu 42 °C selama dua menit, pada dua menit setelah fertilisasi. Sebelum pengujian, kelompok diploid dan triploid dipisahkan dengan menganalisis jumlah nukleolus yang dikonfirmasi dengan penghitungan jumlah kromosom. Masing-masing lima ekor ikan diploid dan triploid pada umur sembilan bulan ditandai dan dipelihara selama dua bulan. Parameter pertumbuhan, rasio konversi pakan, dan kelangsungan hidup dianalisis menggunakan independent-samples t-test pada selang kepercayaan 95% sedangkan gonadosomatik indeks (GSI) dan histologi gonad dianalisis secara deskriptif. Pertumbuhan, rasio konversi pakan, dan kelangsungan hidup antara diploid dan triploid selama dua bulan pemeliharaan tidak menunjukkan perbedaan yang nyata (P>0,05). Nilai GSI diploid lebih tinggi (P<0,05) dibandingkan triploid, baik pada jantan maupun betina. Hasil histologi menunjukkan bahwa gonad ikan patin betina masih pada tahap perkembangan awal. Namun, indikasi steril terlihat dengan adanya degradasi oosit dan perkembangannya yang terganggu. Gonad jantan berkembang lebih cepat dibandingkan betina, dengan ditemukannya spermatid pada beberapa lobule. Gonad jantan triploid menunjukkan adanya gejala sterilitas tetapi tidak permanen, sebagian masih mampu berkembang hingga fase spermatid, namun jumlahnya lebih sedikit dibandingkan diploid. Berdasarkan penelitian, disimpulkan bahwa pertumbuhan antara ikan patin siam diploid dan triploid hingga umur 11 bulan tidak menunjukkan perbedaan, akan tetapi gejala sterilitas ditemukan baik pada jantan maupun betina triploid. Kata kunci: diploid, triploid, pertumbuhan, gonad, Pangasianodon hypophthalmus

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Substitution of Fish Meal with Chicken Feather Silage Meal on Feed Can Improve Growth Performance of Striped Catfish (Pangasius hypopthalmus)

Omni-Akuatika ◽

10.20884/1.oa.2018.14.3.455 ◽

2018 ◽

Vol 14 (3) ◽

Author(s):

Diana Rachmawati ◽

Istiyanto Samidjan ◽

Dicky Harwanto ◽

Hadi Pranggono

Keyword(s):

Survival Rate ◽

Fish Meal ◽

Protein Digestibility ◽

Average Weight ◽

Chicken Feather ◽

Feed Conversion ◽

Feather Meal ◽

Chicken Feathers ◽

Striped Catfish ◽

Chicken Feather Meal

The purpose of this research is to study the effect of substitution of fish meal with silage meal of chicken feathers on feed to protein digestibility, growth and survival rate of striped catfish (Pangasius hypopthalmus). The test fish used is catfish with an average weight of 2.31 ± 0.04 grams /fish. This research used experimental method with Completely Randomized Design, 5 treatments in triplicate. The treatments in this study were substitution of fish meal meal with different dose of chicken feather meal, namely A, B, C, D and E (0%; 25%; 50%; 75% and 100% silage meal of chicken feathers, respectively). Parameters observed included relative growth rate (RGR), feed conversion ratio (FCR), protein efficiency ratio (PER), Apparent Digestibility Coefficient of Protein (ADCP), and survival rate (SR) of catfish. The results showed that the substitution of fish meal with chicken feather silage meal was very significant (P <0.01) to RGR, FCR, PER, and ADCP, but no significant effect (P> 0.05) on SR of catfish. Dose 25% silage chicken feather meal in the feed is the best dose to improve the RGR and ADCP of catfish. Water quality during the study is still within a reasonable range for catfish culture.

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Effect of Inclusion of Degraded and Non-Degraded Date Pits in Broilers’ Diet on their Intestinal Microbiota and Growth Performance

Animals ◽

10.3390/ani10112041 ◽

2020 ◽

Vol 10 (11) ◽

pp. 2041

Author(s):

Salem R. Alyileili ◽

Ibrahim E. H. Belal ◽

Ahmed S. Hussein ◽

Khaled A. El-Tarabily

Keyword(s):

Growth Performance ◽

Group Treatment ◽

Production Efficiency ◽

Efficiency Index ◽

Control Group ◽

Growth Promoter ◽

Gut Health ◽

Feed Conversion ◽

Diet Treatment ◽

Date Pits

The current study aims to assess the effect of non-degraded date pits (NDDP) and degraded date pits (DDP) in broilers’ diets on gut microbiota and growth performance. The degradation of date pits (DP) occurred via the cellulolytic fungus Trichoderma reesei by a solid-state degradation procedure. One-day-old Brazilian broilers were allocated into six dietary groups: (1) maize–soy diet, (2) maize–soy diet with oxytetracycline (20%, 50 g 100 kg−1), (3) maize–soy diet with 5% NDDP, (4) maize–soy diet with 10% NDDP, (5) maize–soy diet with 5% DDP, and (6) maize–soy diet with 10% DDP. At the end of the trial, the total count of bacteria was significantly (p < 0.05) less in broilers fed 10% DDP diet (treatment 6) compared with the control group (treatment 1). In addition, DDP and oxytetracycline control diets have a similar diminishing effect on total bacterial counts and the populations of Salmonella, Campylobacter, Shigella spp., and Escherichia coli. Over 35 days of trial, weight gains were similar among the six dietary groups. Our results showed that DDP and control diets have a similar effect on growth performance. The feed conversion ratio (FCR) was poorer in broilers fed NDDP diets than other treatments. The European Production Efficiency Index (EPEI) was greater with 5% and 10% DDP than those fed NDDP at the same levels, with no significant variance from the control and antibiotic-supplemented diet (treatment 2). Overall, it can be suggested that maintaining 10% of DDP can partly replace dietary maize while also serves as a gut health enhancer and thus a growth promoter in the diet for broilers.

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Effects of salinity on growth performance, survival rate, digestive enzyme activities and physiological parameters of striped catfish (Pangasianodon hypophthalmus) at larval stage

Can Tho University Journal of Science ◽

10.22144/ctu.jen.2021.011 ◽

2021 ◽

Vol 13 (Aquaculture) ◽

pp. 1-9

Author(s):

Thi Kim Ha Nguyen ◽

Tinh Em Nguyen ◽

Minh Ngoc Nguyen ◽

Takagi Yasuaki ◽

Thanh Phuong Nguyen ◽

...

Keyword(s):

Survival Rate ◽

Growth Performance ◽

Digestive Enzyme ◽

Hematological Parameters ◽

Salinity Range ◽

Stress Indicators ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish ◽

Digestive Enzyme Activities ◽

Composite Tank

The present study was to investigate the effects of different salinities (0 (control), 3, 6, 9, 12, 15‰) in striped catfish (Pangasianodon hypophthalmus) at larvae stage. Four-hundred individuals were randomly distributed to each 500-L composite tank (containing 250-L water) in triplicates. After 60 days, fish was sampled to determine survival rate, growth performance, hematological parameters, stress response indicators, and enzymatic activities. The results showed that the survival rate was highest in 6‰ (60.9%) and lowest in 15‰ (1.25%) (p<0.05). Fish exposed to salinities from 0 to 9‰ showed an increasing trend in growth. The osmolality of fish reared in 9 and 12‰ was significantly higher than that in the lower salinities (p<0.05). Similarly, concentrations of Na+, K+, and Cl- increased remarkably at high salinities. Chymotrypsin and trypsin activities were reduced by increased salinities (p<0.05), which were lowest at 15‰ (69.2±2.46 U/min/mg protein and 1.46±0.01 mU/min/mg protein, respectively). Stress indicators such as glucose and cortisol concentrations were not significantly depended on the salinity in the range of 0 to 12‰. Striped catfish larvae showed an adaptable response to high salinity and the appropriate salinity range for larvae rearing was below 6‰.

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Growth performance and haematological characteristics of pullet chickens fed different feed forms supplemented with or without Oyster mushroom (Pleurotus ostreatus)

Nigerian Journal of Animal Production ◽

10.51791/njap.v48i5.3202 ◽

2021 ◽

Vol 48 (5) ◽

pp. 203-212

Author(s):

C. Akomah ◽

O. M. Sogunle ◽

O. A. Adeyemi ◽

A. M. Bamgbose

Keyword(s):

Weight Gain ◽

Growth Performance ◽

Conversion Ratio ◽

Oyster Mushroom ◽

Average Weight ◽

Feed Conversion ◽

Randomized Design ◽

Final Weight ◽

Completely Randomized Design ◽

Average Weight Gain

In a bid to decrease cost of production and increase performance in poultry, the study aimed at determining the growth performance and haematological characteristics of pullet chicken fed different feed forms supplemented with or without oyster mushroom (OM), three hundred and twenty (320) day old Harco Black pullet chicks were brooded for five weeks before they were allocated based on weight equalization on the basis of feed forms (mash and pellet) and OM supplementation (without and with 1g of OM per kg of feed) into four (4) treatments for an experiment which lasted for eleven weeks. Each treatment consisting of 80 birds was replicated eight (8) times with ten (10) birds per replicate. Data collected were arranged in a 2 × 2 factorial layout and subjected to Analysis of Variance in a Completely Randomized Design. Final weight, average weight gain and average feed intake in the grower phase were significantly (p<0.05) higher (1244.69g, 11.13g and 106.11 g) in birds given pelletized feed and lower (1146.25g, 9.27g and 105.08 g) in birds fed mash. Also, PCV, WBC, and Hb obtained in the starter phase were significantly (p<0.05) higher (30. 00%, 2.70 x 10 /l and 10.10 g/dl, respectively) in pullet chicken fed diet supplemented with oyster mushroom than those (26.75%, 2.12 x 10 /l and 8.85 g/dl, respectively) recorded by birds fed diets without oyster mushroom. Therefore, improved weight gain, feed conversion ratio, and immunity can be achieved by feeding pullet chickens with pelletized feed supplemented with oyster mushroom. Dans le but de diminuer les coûts de production et d'augmenter les performances des volailles, l'étude visait à déterminer les performances de croissance et les caractéristiques hématologiques de poulettes nourries de différentes formes d'aliments supplémentées avec ou sans pleurotes (MO), trois cent vingt (320) jours de vieux poussins de poulettes Harco Black ont été couvés pendant cinq semaines avant d'être répartis sur la base d'une égalisation de poids sur la base des formes d'aliments (purée et granule) et d'une supplémentation en MO (sans et avec 1 g de MO par kg d'aliment) en quatre (4) traitements pour une expérience qui a duré onze semaines. Chaque traitement composé de 80 oiseaux a été répliqué huit (8) fois avec dix (10) oiseaux par répliquant. Les données recueillies ont été organisées selon une disposition factorielle 2 × 2 et soumises à une analyse de la variance dans un plan complètement randomisé. Le poids final, le gain de poids moyen et la prisealimentaire moyenne pendant la phase de croissance étaient significativement (p<0,05) plus élevés (1244,69 g, 11,13 g et 106,11 g) chez les oiseaux ayant reçu des aliments granulés et inférieurs (1146,25 g, 9,27 g et 105,08 g) chez les oiseaux. oiseaux nourris de purée. De plus, les PCV, GB et Hb obtenus lors de la phase de démarrage étaient significativement (p<0,05) plus élevés (30,00 %, 2,70 x 109/l et 10,10 g/dl, respectivement) dans le régime alimentaire des poulettes supplémentées en pleurotes que ceux (26,75 %, 2,12 x 109/l et 8,85 g/dl, respectivement) enregistrés par des oiseaux nourris avec des régimes sans pleurotes. Par conséquent, une amélioration du gain de poids, du taux de conversion alimentaire et de l'immunité peut être obtenue en nourrissant des poulettes avec des aliments granulés complétés aux pleurotes.

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The effect of neem (Azadirachta indica) leaf meal on the growth performance and carcass characteristics of broiler chickens

Nigerian Journal of Animal Production ◽

10.51791/njap.v42i2.2660 ◽

2015 ◽

Vol 42 (2) ◽

pp. 141-150

Author(s):

A. A. Ayoola ◽

L. T. Egbeyale ◽

D. A. Ekunseitan ◽

A. V. Adegoke ◽

O. P. Adeyeri

Keyword(s):

Weight Gain ◽

Growth Performance ◽

Azadirachta Indica ◽

Broiler Chickens ◽

Growth Parameters ◽

Carcass Traits ◽

Control Group ◽

Average Weight ◽

Leaf Meal ◽

Average Weight Gain

A feeding trial was conducted for 56days to investigate the effect of neem (Azadirachta indica) leaf meal on the growth performance and carcass traits of broiler chickens. The neem leaf meal was used in replacing parts of wheat offal in the diets of 192 day-old broiler chickens fed ad libitum at 0.1, 0.2 and 0.3% levels of inclusion. The experimental birds were randomly distributed into four treatments. Each treatment was sub-divided into three replicates of sixteen (16) birds. Medications were administered only to the birds in treatment 1(control group) while vaccination was administered across the treatment during the course of the experiment. Growth parameters were taken on weekly basis and data obtained were subjected to one way analysis of variance (ANOVA) in a completely randomized design. There was a significant (P<0.05) effect of varying dietary inclusion of NLM only on average weight gain among the birds at the starter phase. Groups fed 0.3% NLM recorded the highest average weight gain (430.63g) as against 421.00, 392.57 and 394.97g recorded for the control, 0.1% and 0.2% NLM groups, respectively. Neem leaf meal had nosignificant (P<0.05) effect on broiler performance at the finisher phase across the treatment groups. Mortality was not affected (P>0.05) at any of the growth phases. Carcass traits; cut-parts (except neck) and organs showed no influence (P>0.05) of NLM inclusion. It can then be recommended that the neem leaf meal inclusion up to 0.3% in the diets of the broiler chickens can be used as growth promoters during the chick phase of growth.

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INFLUENCE OF PHYTASE ENZYME ON GROWTH PERFORMANCE AND SURVIVAL RATE CHALLENGED WITH SAPROLEGNIA SPP. IN COMMON CARP

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v51i5.1156 ◽

2020 ◽

Vol 51 (5) ◽

pp. 1458-1465

Author(s):

Fadhal & Mustafa

Keyword(s):

Survival Rate ◽

Growth Performance ◽

Common Carp ◽

Challenge Test ◽

Basal Diet ◽

Experimental Period ◽

Feed Additive ◽

Control Group ◽

Feed Conversion ◽

Daily Growth

This study was aimed to investigate the effect of phytase as a feed additive on growth performance and survival rate against Saprolegnia spp.in common carp, Cyprinus carpio L. A total of 120 C. Carpio (initial mass 20.05-20.35g) were randomly stocked into six treatments in duplicate (10 fish/tank) as follows: T1, T2, and T3 were fed the basal diet supplemented with phytase at 1000, 2000, and 4000 IU/Kg diet respectively, while T4 were fed on basal diet plus β-glugan at a concentration of 8.5 g/kg as well as the control group was fed basal diet without any addition of phytase. Results showed after 60 days of feeding period, that the addition of phytase enzyme was significantly (p<0.05) affected on daily growth (DG), specific growth rate (SGR) and feed conversion ratio (FCR) in T3 and T2 followed by T4 and T1 compared to control group. At the end of the experimental period (60 days) fish were challenged with Saprolegnia spp. After 15 days of challenge test, the best survival rate was recorded in T3 (100%) followed by T2 (80%) then T1 (70%) respectively. All treatment groups were better than the positive control group which recorded 40 %. Based on these results, this study approved the potency of the phytase enzyme on growth performance and survival rate against the Saprolegniasis in common carp.

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