Summer Savory (Satureja hortensis L.) Extract as Natural Feed Additive in Broilers: Effects on Growth, Plasma Constituents, Immune Response, and Ileal Microflora

This study investigated the effects of summer savory (Satureja hortensis L.) extract (SSE) on growth, plasma constituents, immune response, and gut microbiota of broiler chickens. A total of 300 day-old broiler chicks were randomly assigned to five dietary treatments containing five replicates of 12 birds each. The treatments consisted of a controldiet without feed additive and experimental diets supplemented with four levels of SSE (100, 200, 300, and 400 mg/kg, respectively). Results showed no significant effect of SSE supplementation on broiler body weight gain (p > 0.05), but feed conversion ratio was significantly (p < 0.05) improved when fed 400 mg/kg SSE compared to control. Most of the blood parameters and immune response criteria studied were improved (p < 0.05) by SSE supplementation. There was no dietary effect on Lactobacilli count (p > 0.05); conversely, Escherichia coli count was reduced and the Lactobacilli/E. coli ratio improved with SSE (p < 0.05). Based on our findings, it was concluded that supplementation of the diet with SSE up to 400 mg/kg sustained growth traits and improved the feed efficiency and health status of broilers. However, more research is needed on this subject in order to better understand the mode of action of the extract used.

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Efficiency of savory (Satureja Khuzestanica Jamzad) essential oil on performance, carcass traits, some blood parameters and immune function of Male Ross 308 heat stressed broiler chicks

Ukrainian Journal of Ecology ◽

10.15421/2019_783 ◽

2019 ◽

Vol 9 (4) ◽

pp. 515-520 ◽

Cited By ~ 1

Author(s):

Y. Mohammad ◽

G. Hasan ◽

D. Mohsen

Keyword(s):

Essential Oil ◽

Broiler Chickens ◽

Body Weight Gain ◽

Relative Weight ◽

Blood Parameters ◽

Serum Glucose ◽

The Body ◽

Broiler Chicks ◽

Hepatic Enzymes ◽

Feed Conversion

To investigate the efficiency of savory essential oil on performance, organs relative weight, some blood parameters, immune response and hepatic enzymes of broiler chickens, a total 320 male Ross 308 chicks were allocated to four treatments and four replicates of twenty birds as a completely randomized design from. The varidifferent levels savory oil. The body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) was recorded at continues weeks of the experiment. Relative weight of visceral organs was determined and blood serum glucose and activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP) were measured after blood sampling at 42 days old and plasma IgG immunoglobulin was quantified. Data showed that BW and FI increased with savory oil inclusion (p≤0.05). Besides, the savory oil decreased the plasma glucose, AST and ALT and serum blood Ig G of heat stressed broilers, increased significantly (p?0.05) instead. In conclusion we may suggested that, the savory oil at 0.4 ml/L could improve economic proficiency in broiler flocks due to accumulation of minute advantages in greater BWG, FI, and improved immune system and lowered hepatic enzymes under heat stress condition.

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Experimental study of the efficacy of three inactivated H9N2 influenza vaccines on broiler flocks

Turkey Diseases, Production and Management - German Journal of Veterinary Research ◽

10.51585/gjvr.2021.2.0012 ◽

2021 ◽

Vol 1 (2) ◽

pp. 35-45

Author(s):

Amal Essalah-Bennani ◽

Yassmina Bidoudan ◽

Asma Fagrach ◽

Hanan Balil ◽

El Khantour Abderrazak ◽

...

Keyword(s):

Immune Response ◽

Broiler Chickens ◽

Body Weight Gain ◽

Pathological Examination ◽

Control Group ◽

Broiler Chicks ◽

Feed Conversion ◽

Final Body Weight ◽

Virus Shedding ◽

Viral Shedding

This study was carried out to evaluate the effect of different Low Pathogenic Avian Influenza (LPAI) H9N2 vaccines containing different virus strains (vaccine A, vaccine B, and vaccine C) on the productivity and immunity of 10 days-old broiler chickens. Two hundred day-old Cobb broiler chicks were divided into eight groups, 25 chicks in each group. Six groups were vaccinated with Vaccine A, Vaccine B, and Vaccine C (2 groups/each vaccine) at 10 day-old, respectively. Chickens of groups 7 and 8 were kept as control groups. One group from each vaccine was challenged at 28 days old with 106 EID50/0.2ml of A/chicken/Morocco/SF1/2016 (H9N2) virus via the oculonasal route. The remaining groups were kept unchallenged to evaluate the immune response. Chicks were sampled each week individually until 42 days old for zootechnical traits and serological evaluation. Two necropsies were done at 5 and 10 days post-challenge (DPC). Lungs and tracheas were collected for histopathology, and the virus shedding was monitored at 5, 7, 9, and 11 DPC by real-time RT-PCR. Results indicated that vaccine B provides significantly better growth performances (P < 0.05), final body weight gain (2689.6 g ± 73.2), and feed conversion ratio (2.10 ± 0.06) when compared to other vaccinated groups. During the challenge (28th -35th days), vaccine B showed a significant increase in antibody titer (26180 ± 1129.1) than other vaccines. In contrast, the vaccine C group had a similar immune response to that of the control group. Both vaccines A and B were able to stop virus shedding by 11 DPC with higher mean Cq values. However, the vaccine C group continued to shed the virus until 11 DPC. Pathological examination of challenged birds revealed lesions predominantly in the respiratory tract. At 5 DPC, fibrinous sinusitis, tracheitis with fibrin plug, pneumonia, and fibrinous airsacculitis were observed. By 10 DPC, the fibrinous inflammation inceased, and only congestion in the trachea, lungs, and sinuses with thickening of air sacs were observed. Histopathology revealed lymphoplasmacytic tracheitis and congestive pneumonia. Scoring of lesions generally revealed more severe lesions at 5 DPC. Statistical analysis of both macroscopic and microscopic scores showed no significant differences between groups in both necropsies. In conclusion, vaccine B has significantly better seroconversion, better growth performance parameters, and a relatively early stop of viral shedding compared to other vaccines.

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

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v3i2.4256 ◽

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.

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

Animals ◽

10.3390/ani11072027 ◽

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.

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The Effect of Dietary Halloysite Supplementation on the Performance of Broiler Chickens and Broiler House Environmental Parameters

Animals ◽

10.3390/ani11072040 ◽

2021 ◽

Vol 11 (7) ◽

pp. 2040

Author(s):

Małgorzata Nadziakiewicz ◽

Marcin Wojciech Lis ◽

Piotr Micek

Keyword(s):

Body Weight ◽

Broiler Chickens ◽

Body Weight Gain ◽

Environmental Parameters ◽

Feed Consumption ◽

Feed Additive ◽

Feed Conversion ◽

Daily Body Weight ◽

Daily Water ◽

Broiler House

The aim of the study was to determine the effect of supplementing broiler chickens’ diets with halloysite on daily body weight gain (BWG), feed conversion ratio (FCR), daily water consumption (DWC), and some broiler house hygiene parameters. The trial was conducted on 18,000 broiler chickens divided into two groups throughout the 42-day (D) rearing period. The birds were fed complete diets without (group C) or with halloysite addition (1%, group E) from D8 of rearing. No difference in the mortality rate was observed between groups C and E. Birds from group E had a tendency (0.05 < p < 0.10) towards a higher body weight at D32 and D42, a higher BWG, and a lower FCR compared to group C during the entire rearing period. Average DWC differed only in the finisher period, with a tendency towards lower overall DWC in group E. The concentration of ammonia in the air from D21 to D35 was increased more than 5-fold in group C but only 1.5-fold in group E. In conclusion, the use of halloysite as a feed additive in the diet of broiler chickens resulted in a reduction in feed consumption per unit of BWG and higher utilisation of crude protein, which led to improved environmental conditions.

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Growth Performance, Serum Biochemical Indices, Duodenal Histomorphology, and Cecal Microbiota of Broiler Chickens Fed on Diets Supplemented with Cinnamon Bark Powder at Prestarter and Starter Phases

Animals ◽

10.3390/ani11010094 ◽

2021 ◽

Vol 11 (1) ◽

pp. 94

Author(s):

Mohammed M. Qaid ◽

Saud I. Al-Mufarrej ◽

Mahmoud M. Azzam ◽

Maged A. Al-Garadi ◽

Hani H. Albaadani ◽

...

Keyword(s):

Body Weight ◽

Broiler Chickens ◽

Body Weight Gain ◽

Basal Diet ◽

Positive Control ◽

Negative Control ◽

Broiler Chicks ◽

Feed Conversion ◽

Serum Globulin ◽

Maximum Improvement

Ross 308 broiler chicks (n = 240) aged 1 day were assigned to five groups for eight replicates (six chicks for each) (3♂ and 3♀). Basal dietary groups were supplemented by 2000, 4000, and 6000 mg/kg cinnamon (CN) for 21 days. Basal diet alone was used as a negative control, and basal antibiotic diet (Colimox) was used as a positive control. At 10, 14, and 21 days of age, chicks that received 2000 mg CN and Colimox had a higher body weight, resulting in an increase in body weight gain. CN also resulted in the maximum improvement in the feed conversion ratio and feed efficiency over 1–21 days at the level of 2000 mg/kg. At days 10, the maximum relative breast weight was 2000 mg/kg of CN. Mean serum albumin concentrations, duodenal villus height, and goblet cell density increased (p < 0.05) by 2000 mg/kg of CN, and mean serum globulin and total protein concentrations and crypt depth increased (p < 0.05) by 6000 mg/kg of CN compared with control. Increased cecal Escherichia coli number was CN dose-dependent. In conclusion, dietary inclusion of 2000 mg/kg CN can be applied as an alternative to in-feed antibiotics for broiler starter diet.

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Probiotic level effects on growth performance, carcass traits, blood parameters, cecal microbiota, and immune response of broilers

Anais da Academia Brasileira de Ciências ◽

10.1590/0001-3765201620150071 ◽

2016 ◽

Vol 88 (2) ◽

pp. 1011-1021 ◽

Cited By ~ 18

Author(s):

MOHAMMADREZA POURAKBARI ◽

ALIREZA SEIDAVI ◽

LEILA ASADPOUR ◽

ANDRÉS MARTÍNEZ

Keyword(s):

Immune Response ◽

Growth Performance ◽

Body Weight Gain ◽

Control Diet ◽

Carcass Traits ◽

Blood Parameters ◽

Feed Conversion ◽

Probiotic Supplementation ◽

Cecal Microbiota ◽

Feed Conversion Rate

Probiotic effects on growth performance, carcass traits, blood parameters, cecal microbiota, and immune response of broilers were studied. Two hundred one-day-old male chickens were allocated to one of five treatments (four replicates of 10 birds per treatment): control, and the same control diet supplemented with 0.005%, 0.01%, 0.015% and 0.02% probiotics. Probiotics in feed at 0.01% or higher levels of supplementation improved body weight gain (+12%) and feed conversion rate (-5%) compared with the control. There were no effects on carcass traits, but the relative weights of drumsticks and wings showed increasing and decreasing linear responses, respectively, to probiotic supplementation level. Blood plasma glucose and albumin contents linearly increased (from 167.1 to 200.5 mg dl-1, and from 1.70 to 3.25 g dl-1) with increasing probiotic supplementation. Triglycerides and cholesterol contents were lower in probiotic supplemented treatments (average contents 71.3 and 125.3 mg dl-1 vs. 92.6 and 149.9 mg dl-1 in the control). Probiotics decreased cecal Escherichia coli counts, but had no effects on immunity related organs or immune response. The linear trends, either positive or negative, observed in many of the parameters studied, suggest that more studies are needed to establish the optimal concentration of probiotics in broiler feed.

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Dietary Grape (Vitis vinifera) Seed Powder and Zn–Gly Chelate Complex for Mitigating Heat Stress in Broiler Chickens: Growth Parameters, Malondialdehyde, Paraoxonase-1, and Antibody Titer

Agriculture ◽

10.3390/agriculture11111087 ◽

2021 ◽

Vol 11 (11) ◽

pp. 1087

Author(s):

Muhammad Israr ◽

Naila Chand ◽

Rifat Ullah Khan ◽

Ibrahim A. Alhidary ◽

Mutassim M. Abdelrahman ◽

...

Keyword(s):

Heat Stress ◽

Antibody Titer ◽

Broiler Chickens ◽

Growth Traits ◽

Growth Parameters ◽

Control Diet ◽

Paraoxonase 1 ◽

Control Treatment ◽

Broiler Chicks ◽

Feed Conversion

A total of 300 day old broiler chicks (Hubbard) were assigned to 30 floor pens (10 birds per pen) under cyclic heat stress. Three diets including a control, as well as two levels of grape seed powder (GSP) and zinc (OZ) at the rates of 2.5 g/kg GSP + 50 mg/kg OZ and 5 g/kg GSP + 50 mg/kg OZ, were supplied to the broilers for 35 days. According to the results, broiler feed intake improved (p < 0.05) in GSP + OZ groups from 3–5 weeks and on an overall basis compared to the control diet. Body weight increased (p < 0.05) in GSP-5 + OZ-50 during weeks 2–5 and on an overall basis. The findings indicated that feed conversion ratio (FCR) decreased (p < 0.05) during week 5 in broilers supplemented with GSP-5 + OZ-50. The antibody titer (HI) against Newcastle disease (ND) was higher (p < 0.05) in GSP + OZ groups compared to control treatment. The value of malondialdehyde (MDA) decreased (p < 0.05) under GSP + OZ diets compared to control. Moreover, paraoxonase (PON1) was higher (p < 0.05) in GSP + OZ groups compared to untreated broilers. In conclusion, GSP + OZ positively supported growth traits, reduced MDA, and augmented PON1 and HI titer against ND in broilers exposed to heat stress.

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Effect of different level of rosemary leave powder in diet on blood metabolites, carcass characteristics and broiler performance

Veterinary Science Development ◽

10.4081/vsd.2018.6935 ◽

2018 ◽

Vol 8 (1) ◽

Author(s):

Mojtaba Roudgar Amoli ◽

Kaveh Jafari Khorshdidi ◽

Mohammad Jafari

Keyword(s):

Feed Intake ◽

Broiler Chickens ◽

Body Weight Gain ◽

Carcass Traits ◽

Broiler Chicks ◽

Feed Conversion ◽

Broiler Performance ◽

And Performance ◽

Experimental Treatments ◽

Broiler Feed

This experiment was conducted to investigate the effect of rosemary powder in diet on blood metabolite and performance of broiler chickens. 180 one day broiler chicks were distributed in a completely randomize design with 4 treatments and 3 replicates and 15 bird in each. Experimental treatments were included: Control (without additive), 0.05, 0.1 and 0.2 percent of rosemary in diet. In 42 day of age one bird from each replicate was selected and slaughtering for carcass traits. The results were sowed use of 0.05 percent of rosemary could be significantly increased feed intake of broiler in starter period (p<0.05). Also use of 0.1 percent of rosemary caused to significantly increase broiler body weight gain in overall of rearing period than 0.2 percent group (p<0.05). Use of 0.1 percent rosemary in diet had a significantly feed conversion ratio (FCR) than T4 (0.2% rosemary). Experimental treatments had no significant effect on carcass traits, except in liver percent weight, which had significantly higher in T2 group (p<0.05). Also experimental treatments had no significant effect on glucose, cholesterol, triglyceride level of broiler chickens in 42 day of age. The results of this experiment showed use of rosemary powder could be improved broiler feed intake in starter period.

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Aplikasi Teknologi Nanopartikel Perak (AgNPs) dalam Air Minum dan Bentuk Kabut terhadap Kadar Amonia Ekskreta Broiler

Jurnal Ilmu Nutrisi dan Teknologi Pakan ◽

10.29244/jintp.17.2.26-31 ◽

2019 ◽

Vol 17 (2) ◽

pp. 26-31

Author(s):

Ones Putra Hulu ◽

M Sihombing ◽

R H Saputro ◽

A Darmawan ◽

Y Herbani

Keyword(s):

Drinking Water ◽

Body Weight ◽

Weight Gain ◽

Relative Humidity ◽

Broiler Chickens ◽

Body Weight Gain ◽

Feed Consumption ◽

Broiler Chicks ◽

Feed Conversion ◽

Ammonia Content

The purpose this study was evaluate the utilization of nanoparticles silver (AgNPs) on performance and ammonia concentration in broiler excreta. This study used a factorial completely randomized design with 3x2 treatments and 4 replicates. First factor (AgNPs at drinking water) was P1 = 0 ppm, P2 = 2 ppm, and P3 = 3 ppm and the second factor Q (AgNPs by misty) was Q1 = 0 ppm and Q2 = 4 ppm. The variables measured were excreta ammonia content, feed consumption, body weight gain, feed conversion ratio, mortality, temperature and relative humidity. The results showed that there was no interaction between AgNPs in drinking water and AgNPs in its mist form on ammonia content. AgNPs 4 ppm by misty also affected reduce FCR and body weight gain at week 3, also increased FCR at fourth week. AgNPs in drinking water affected (P < 0.05) amonia content. AgNPs 2 ppm in drinking water reduce until 11% amonia content. AgNPs by misty also reduced (P< 0.05) amonia content. AgNPs 0 ppm and 4 ppm by misty not created comfort temperature and relative humidity for broiler chicks. It is concluded that the addition of silver nanoparticles reduce excreta ammonia levels of broiler chickens.

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