scholarly journals EFFECTS OF IN OVO SYNBIOTIC INJECTION ON GROWTH PERFORMANCE, INTESTINAL BACTERIAL LOAD AND ANTIBODY TITRES IN BROILER CHICKENS VACCINATED AGAINST INFECTIOUS BURSAL DISEASE

2021 ◽  
Vol 24 (4) ◽  
pp. 520-532
Author(s):  
D. Babazadeh ◽  
K. Asasi
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Bacterial Load ◽  
Lactobacillus Delbrueckii ◽  
Infectious Bursal Disease ◽  
Feed Conversion ◽  
In Ovo ◽  
Positive Effects ◽  
Bursal Disease ◽  
Antibody Titres

The present study investigated the efficacy of a synbiotic (Lactobacillus delbrueckii subsp. bulgar-icus, Streptococcus salivarius subsp. thermophilus, and mannan oligosaccharide) along with an infectious bursal disease (IBD) vaccine in Cobb 500 broilers. A total of 1200 embryonated chicken eggs were randomly allocated in 10 groups with eight replicates. The first group did not receive any treatment. The second group was vaccinated post-hatch (PV), the third group was vaccinated in ovo (IV), the fourth group received dietary synbiotic and in ovo vaccination (DS+IV), the fifth group was treated in ovo with synbiotic (IS), the sixth group received in ovo and dietary synbiotic (IS+DS), the seventh group received in ovo synbiotic plus post-hatch vaccination (IS+PV) and the eighth group  in ovo and dietary synbiotic and post-hatch vaccination (IS+DS+PV). In the ninth group, the synbiotic and the vaccine were administered in ovo (IS+IV) while the tenth group re-ceived in ovo and dietary synbiotic, plus in ovo vaccine (IS+DS+IV). The in ovo treatment with the synbiotic in combination with DS, IV or PV had a positive effect on weekly weight gain. The sixth group provided a better feed conversion ratio at the end of fourth week. The synbiotic appli-cation, individually in sixth group or along with PV or IV treatment in eighth and tenth groups, elevated feed intake in fifth and sixth weeks respectively.The antibody titre of IBD was higher for groups which received IV along with IS. It is concluded that the application of synbiotic along to IBD vaccine improved growth performance and had positive effects on IBD antibody titres.

scholarly journals Growth Performance of Broilers fed Moringa oleifera Supplemented Feed ‎and Challenged with a very virulent Infectious Bursal Disease Virus

2020 ◽  
Vol 17 (3) ◽  
pp. 6-13
Author(s):  
A. G. Balami ◽  
J. J. Ndahi ◽  
J. J. Gadzama ◽  
S. J. Enam ◽  
P. A. Abdu ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Feed Intake ◽  
Infectious Bursal Disease Virus ◽  
Broiler Chickens ◽  
Moringa Oleifera ◽  
Infectious Bursal Disease ◽  
Bursal Disease ◽  
Group A ◽  
Group D

A study was conducted to assess the growth performance of broiler chickens fed Moringa oleifera leaf (MOL) feed supplement and challenged with a very virulent infectious bursal disease virus (vvIBDV). Two hundred and forty day-old Ross 308 hybrid broiler chicks were randomly assigned into groups A, B, C and D of 60 chicks each and were raised in deep litter housing. Broiler starter (BS) and broiler finisher (BF) mash were formulated each with 5% MOL included as part of the feed ingredient for broilers in groups A and B while BS and BF for broilers in groups C and D were formulated without MOL. Broiler chickens in groups A, B and C were challenged at 35 days of age with 0.05 ml of a live vvIBDV, while those in group D served as control. Daily feed intake (DFI), feed conversion ratio (FCR) and average body weight gain (ABWG) was used to assess the growth performance. At 42 and 49 days of age, significant difference was observed in the feed intake of broilers in groups A, B and C when compared with group D (p = 0.0001). At 49 days of age, broilers in group A and D significantly (p = 0.0001) added more weight than those in groups B and C respectively. Broilers in group B had a significantly (p = 0.0006) lower FCR than those in group A, C and D at 28, 35 and 42 days of age. Despite the challenge with vvIBDV, MOL inclusion in the diet of broiler chickens resulted in reduced DFI, good FCR, increased ABWG and final body weight and carcass weight.

Effect of total sulfur amino acids in corn - cassava - soybean diets on growth performance, carcass yield and blood chemical profile of male broiler chickens from 1 to 42 days of age

2011 ◽  
Vol 51 (3) ◽  
pp. 198 ◽  
Author(s):  
C. Rakangtong ◽  
C. Bunchasak
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
National Research Council ◽  
Serum Triglyceride ◽  
Broiler Chicks ◽  
Total Sulfur ◽  
Chemical Profile ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Positive Effects

The experiment was conducted to determine the effects of total sulfur amino acid (TSAA) in diets on growth performance, carcass yield and blood chemical profile of commercial male broiler chickens from 1 to 42 days of age. Six graded levels of TSAA were fed during the starter (1–21 days of age) and the grower (22–42 days of age) periods at 61, 84, 100, 105, 110 and 115% of commercial recommendation. The experiment was a completely randomised design. In all, 1050 commercial male broiler chicks (Ross 308) were divided into six treatments, and each treatment consisted of seven replicates of 25 chicks each. Bodyweight gains of chicks that received TSAA at 100% of commercial concentrations were significantly greater than those that received the recommended National Research Council concentrations (84% of commercial levels, P < 0.05). The best feed-conversion ratio and feed cost per gain were found at the commercial recommendation level. Nonetheless, broilers that were fed TSAA at concentrations higher than the commercial recommendation levels did not exhibit positive effects on growth performance. With respect to carcass yield, the breast meat yield was increased by increasing TSAA in the diets (P < 0.05), particularly when supplied at commercial recommendation levels, whereas the eviscerated carcass and liver weights were not significantly affected. There was no significant effect of increasing TSAA in the diets on serum triglyceride, uric acid, total protein, albumin and globulin. In conclusion, broilers fed diets supplemented with TSAA at commercial concentrations gave the best growth performance, carcass yields and economic return.

scholarly journals Influence of in ovo and pre-starter zinc and copper supplementation on growth performance and gastrointestinal tract development of broiler chickens

2020 ◽  
Vol 115 (2) ◽  
pp. 237
Author(s):  
Vaibhav Bhagwan AWACHAT ◽  
Arumbackam Vijayarangam ELANGOVAN ◽  
Olajide Mark SOGUNLE ◽  
Corbon Godfrey DAVID ◽  
Jyotirmoy GHOSH ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Trace Mineral ◽  
In Ovo ◽  
Group I

This experiment was on 350 uniform sized Cobb broiler hatching eggs (60 g) to assess the response of trace mineral supplementation (Zinc and copper) on growth performance and gastrointestinal tract development in broiler chicken. The fertile eggs were divided into groups with in ovo trace mineral solution containing zinc (80 µg) and copper (16 µg) and without in ovo administration. After hatching, the chicks were further divided into four groups: Group I served as control without in ovo and without post-hatch supplemented diet (WoINOVO-WoPHS), birds in Group II were without in ovo and with post-hatch supplemented diet (WoINOVO-WPHS) (100 % higher level of zinc 200 ppm, copper 30 ppm in diet), birds in Group III had in ovo (zinc, 80 µg; copper,16 µg) and without post-hatch supplemented diet (WINOVO-WoPHS) and birds in Group IV had in ovo and with post-hatch supplemented diet (WINOVO-WPHS). Data collected were subjected to completely randomized design. Hatchability, live weight gain, feed intake and feed conversion ratio at 0–3 wk were not affected (p &gt; 0.05) by in ovo administration of the mineral. Post-hatch supplementation of zinc and copper without in ovo supplementation showed better feed conversion ratio at 3–5 wk of age.  It could be recommended that for improved post-hatch performance, broiler chickens diets could be supplemented with inorganic zinc and copper.

scholarly journals Effects of Bile Acids on Growth Performance and Lipid Metabolism during Chronic Heat Stress in Broiler Chickens

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 630
Author(s):  
Chang Yin ◽  
Shanlong Tang ◽  
Lei Liu ◽  
Aizhi Cao ◽  
Jingjing Xie ◽  
...  
Keyword(s):  
Heat Stress ◽  
Lipid Metabolism ◽  
Bile Acid ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Breast Muscle ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Positive Effects

This study aimed to investigate whether dietary bile acid (BA) supplements can improve growth performance and lipid metabolism in heat-stressed broiler chickens. A total of 288 Arbor Acres broilers were blocked by BW and then randomly allocated into 4 treatments at 21 days of age. Birds reared under 32 °C had a higher cloacal temperature (p = 0.01), faster respiratory rate (p < 0.001), and a greatly reduced average daily feed intake (ADFI, p = 0.016), average daily gain (ADG, p = 0.006), final body weight (FBW, p = 0.008), and feed conversion rate (FCR, p = 0.004). In heat stress (HS) birds, the breast muscle rate (p = 0.006) and pH 24 h postmortem (p = 0.065) were lower, and the shear force was higher (p = 0.027). Dietary BA supplements tended to increase the breast muscle rate (p = 0.075) without affecting the growth performance and serum lipids (p > 0.05). Serum total bile acid (TBA) was roughly duplicated after BA supplements (p = 0.001). In the liver, total cholesterol was lower (p = 0.046), and triglycerides were higher (p = 0.04) in the HS birds, whereas the expression of SREBP-1c showed an increasing trend (p = 0.06). In contrast, dietary BA decreased triglycerides and the expressions of hepatic SREBP-1c and FAS in the liver (p < 0.05). In summary, mild HS causes hepatic lipid accumulation without obvious tissue damages, whereas BA has positive effects on relieving abnormal lipid metabolism, indicating that BA as a nutritional strategy has a certain potential in alleviating HS.

Effects of feeding Isomaltooligosaccharides on the growth performance, carcass traits and immune response of broiler chickens

2014 ◽  
Vol 3 (1) ◽  
pp. 150-157
Author(s):  
Khalid M. Gaafar
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Carcass Traits ◽  
Dietary Supplementation ◽  
Control Group ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Flu Vaccine ◽  
Lipids Profile

The research was conducted to study the effect of feeding broiler chickens on diets containing isomaltooligosaccharides on the growth performance, carcass traits and immune response. 90-one day old broiler chicks were used according to completely randomized two treatment groups and one control, 30 birds each. Birds fed ad-libitum on basal starter and grower-finisher diets for 35 day. Diets of treatment`s groups contained 0.5 g/Kg and 1 g/Kg of Isomaltooligosaccharides, while the control group fed on the basal diets without Isomaltooligosaccharides supplementation. Dietary supplementation of broiler chickens with Isomaltooligosaccharides improved body weight, feed conversion, carcass traits, two lymphoid organs weight and log antibody titer against avian flu vaccine. Most of the highest values were for birds fed low levels of Isomaltooligosaccharides. Feed intake decreases as Isomaltooligosaccharides level increases. Dietary supplementation with Isomaltooligosaccharides did not affect the lipids profile (triglycerides, total cholesterol, LDL and HDL), however the blood VLDL levels decreased with increased levels of Malondialdehyde and Glutathione reductase. Collectively, Dietary supplementation of broiler chickens with 0.5 g/Kg diet of Isomaltooligosaccharides improved growth performance, carcass traits and immune status.

scholarly journals Supplementing Garlic Nanohydrogel Optimized Growth, Gastrointestinal Integrity and Economics and Ameliorated Necrotic Enteritis in Broiler Chickens Using a Clostridium perfringens Challenge Model

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2027
Author(s):  
Doaa Ibrahim ◽  
Tamer Ahmed Ismail ◽  
Eman Khalifa ◽  
Shaimaa A. Abd El-Kader ◽  
Dalia Ibrahim Mohamed ◽  
...  
Keyword(s):  
Growth Performance ◽  
Clostridium Perfringens ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Economic Benefits ◽  
Production Costs ◽  
Broiler Chicks ◽  
Necrotic Enteritis ◽  
Feed Conversion ◽  
Intestinal Lesion

Necrotic enteritis (NE) caused by Clostridium perfringens (C. perfringens) results in impaired bird growth performance and increased production costs. Nanotechnology application in the poultry industry to control NE outbreaks is still not completely clarified. Therefore, the efficacy of dietary garlic nano-hydrogel (G-NHG) on broilers growth performance, intestinal integrity, economic returns and its potency to alleviate C. perfringens levels using NE challenge model were addressed. A total of 1200 male broiler chicks (Ross 308) were assigned into six groups; four supplemented with 100, 200, 300 or 400 mg of G-NHG/kg diet and co-challenged with C. perfringens at 21, 22 and 23 d of age and two control groups fed basal diet with or without C. perfringens challenge. Over the total growing period, the 400 mg/kg G-NHG group had the most improved body weight gain and feed conversion efficiency regardless of challenge. Parallel with these results, the mRNA expression of genes encoding digestive enzymes (alpha 2A amylase (AMY2A), pancreatic lipase (PNLIP) and cholecystokinin (CCK)) and intestinal barriers (junctional adhesion molecule-2 (JAM-2), occludin and mucin-2 (Muc-2)) were increased in groups fed G-NHG at higher levels to be nearly similar to those in the unchallenged group. At 14 d post challenge, real-time PCR results revealed that inclusion of G-NHG led to a dose-dependently decrease in the C. perfringens population, thereby decreasing the birds’ intestinal lesion score and mortality rates. Using 400 mg/kg of G-NHG remarkably ameliorated the adverse effects of NE caused by C. perfringens challenge, which contributed to better growth performance of challenged birds with rational economic benefits.

scholarly journals Transmissible Viral Proventriculitis Caused by Chicken Proventricular Necrosis Virus Displaying Serological Cross-Reactivity with IBDV

Animals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 8
Author(s):  
Marcin Śmiałek ◽  
Michał Gesek ◽  
Daria Dziewulska ◽  
Jowita Samanta Niczyporuk ◽  
Andrzej Koncicki
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Elisa Test ◽  
Cross Reactivity ◽  
Infected Group ◽  
Feed Conversion ◽  
Necrosis Virus ◽  
Bursal Disease ◽  
Group A ◽  
Potential Factor

Transmissible viral proventriculitis (TVP) of chickens is manifested in decreased body weight gains, poor feed conversion and weight diversity. Although TVP etiology has not been defined, a Birnaviridae family member, named chicken proventricular necrosis virus (CPNV) is considered as a potential factor of a disease. This study was undertaken in order to reproduce TVP and to evaluate its etiology. Broiler chickens of the TVP-infected group were inoculated with TVP positive proventriculi homogenate on the 24th day of life. Samples were collected, on infection day and 14 days post-infection (dpi). The 14 dpi anatomo- and histopathological evaluation, revealed that we have succeeded to reproduce TVP. TVP-infected birds gained 30.38% less body weight. In the TVP-infected group a seroconversion against picornaviruses, fowl adenoviruses (FAdV) and infectious bursal disease viruses (IBDV) was recorded with an ELISA test. Using RT-PCR and PCR, CPNV was detected in proventriculi and FAdV in spleens and livers of infected birds, 14 dpi. Our study supports that CPNV is involved in the development of TVP. We did not record the presence of IBDV in TVP or control birds, despite our recording of a seroconversion against IBDV in TVP infected birds. CPNV and IBDV belong to the same family, which allows us to assume serological cross-reactivity between them. The role of FAdV needs further evaluation.

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