scholarly journals Comparative studies on the efficacy of lincomycin and bacitracin for the control of necrotic enteritis in broiler chickens

2019 ◽  
Vol 8 (6) ◽  
pp. 1153
Author(s):  
Ashraf A. Elkomy ◽  
Enas Farag ◽  
El Shahat I. El Gharbawy ◽  
Mohamed Elbadawy
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Conversion Rate ◽  
Broiler Chickens ◽  
Broth Culture ◽  
Phagocytic Index ◽  
Necrotic Enteritis ◽  
Feed Conversion ◽  
Group A ◽  
Feed Conversion Rate

Background: The present study was conducted to evaluate the efficacy of lincomycin and/or bacitracin for control of experimentally-induced Clostridium perfringens (CP) infection in broiler chickens.Methods: A total of 100 one-day-old Cobb-mixed chicks were divided into five groups (A, B, C, D and E, each of 20 bird). At the 15th day of age, all birds (except group A) were inoculated orally with CP broth culture (109 CFU/mL). Two days later, drugs were orally administered once daily for five consecutive days as follow; Group A and B were left untreated. Group C, D, and E were treated with lincomycin (0.5 g/l), bacitracin (100 mg/l), lincomycin and bacitracin, respectively. The efficacy of used drugs was estimated based on clinical symptoms, body weight, weight gain, feed conversion rate. Hematobiochemical changes were also determined.Results: Necrotic enteritis in broiler chickens induced a significant decrease in body weight, weight gain, erythrocytic count, hemoglobin content, PCV %, serum proteins, catalase, and superoxide dismutase. Additionally, a marked decrease in serum lipids was obtained. Furthermore, a significant increase in feed conversion rate, leukocytic count, phagocytic activity, phagocytic index, serum total globulin, γ globulin and malondialdehyde coupled with a marked increase in β and α globulins were determined. Medication of infected broilers with lincomycin and/or bacitracin improved clinical signs and reduced mortality rate to 8, 6 and 2%, respectively, as well as restored the performance and hematobiochemical alterations.Conclusions: a combination of lincomycin and bacitracin was of considerable value for the control of necrotic enteritis in broiler chickens.

scholarly journals GENE CONSERVATION PRACTICE AND PRODUCTION OF OLD HUNGARIAN GOOSE BREEDS

2019 ◽  
Vol 1 (34) ◽  
pp. 32-36
Author(s):  
László Bódi ◽  
István Szalay ◽  
Phuong Ngoc Lan Thieu
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Conversion Rate ◽  
Egg Production ◽  
Body Weight Gain ◽  
Feed Consumption ◽  
Gene Conservation ◽  
Feed Conversion ◽  
Conservation Practice ◽  
Feed Conversion Rate

Hungarian goose production and gene conservation practices have been a tradition in Hungary for several centuries. The old Hungarian geese can only be effectively maintained if the national programs can identify economic uses of the breed. This study aimed to examine the potential use of the Hungarian landrace goose (HL) either as a purebred or crossbred with the Hungarian Upgraded breed (HU). Crossbred offspring were produced by HL ganders and HU layers, as egg production of HL layers is very low. Reproduction traits (egg production, fertility and hatchability) of parent stocks, body weight gain, feed consumption and slaughter values (slaughter loss, breast and thigh weight and proportions) and of offspring were measured. The results showed that fertility in the crossbred geese was insignificant compared to the fertility of HL purebreds, while hatchability of crossbreds was higher than that of purebred HL or HU. HL offspring had significantly lower bodyweight and weight gain, and a higher feed conversion rate than HU. The proportion of valuable meat parts (breast and thigh) was the highest in HU while weight in slaughter loss was also the highest in HU. In terms of body weight, feed conversion rate and slaughter properties, crossbred offspring showed intermediate  inheritance. HL is recommended for crossbreeding with HU breeds and their offspring should be reared under free-range keeping conditions.

scholarly journals Enhancing the Productive Performance of Broiler Chickens by Adding Spirulina platensis Compared with Probiotic, Prebiotics, and Oxytetracycline

2021 ◽  
Vol 45 (1) ◽  
pp. 31-36
Author(s):  
Wisam R Atiyah ◽  
Mohanad F Hamood
Keyword(s):  
Drinking Water ◽  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Spirulina Platensis ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Feed Conversion Rate

This study was conducted in order to find out the effect of Spirulina platensis (S. platensis) algae mixed with drinking water (2%) on the production performance of broiler chickens infected with or without Enterococcus faecalis (E. faecalis) and compare it with the effects of probiotics (containing Lactobacillus acidophilus, L. casi, L. reuteri, and Bacillus subtillis), prebiotics (containing antioxidants and a group of vitamins) as well as oxytetracycline. The experiment included 350 one day old (Ross-308) broiler chicks, randomly divided into 7 groups by 50 chicks per group for 35 days. The groups were divided as follows: T1: infected experimentally with E. faecalis only, T2: treated with S. platensis, T3: infected experimentally with E. faecalis and treated with 2% S. platensis, T4: infected experimentally with E. faecalis and treated with probiotic, T5: infected experimentally with E. faecalis and treated with prebiotic, T6: infected experimentally with E. faecalis and treated with oxytetracycline. T7: control group without any addition. Weekly live body weight and weekly body weight gain were measured as well as weekly feed intake and feed conversion rate for broiler chickens were estimated. The current study proved that S. platensis algae added to drinking water (2%) in T2 and T3 groups had caused a significant increase (P<0.05) in the weekly live body weight and weekly body weight gain, Spirulina also caused a significant decrease (P<0.05) in weekly feed intake and feed conversion rate for broiler chickens. Therefore, S. platensis could be a suitable alternative to some feed additives such as probiotics, prebiotics, and antibiotics in addition to the ability of Spirulina to reduce the symptoms of E. faecalis.

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.

scholarly journals Enterococcus faecium PNC01 isolated from the intestinal mucosa of chicken as an alternative for antibiotics to reduce feed conversion rate in broiler chickens

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Yang He ◽  
Xuan Liu ◽  
Yuanyang Dong ◽  
Jiaqi Lei ◽  
Koichi Ito ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Intestinal Mucosa ◽  
Conversion Rate ◽  
Broiler Chickens ◽  
Intestinal Epithelial Cells ◽  
Relative Length ◽  
Intestinal Epithelial ◽  
Feed Conversion ◽  
Broiler Production ◽  
Feed Conversion Rate

Abstract Background The development and utilization of probiotics had many environmental benefits for replacing antibiotics in animal production. Bacteria in the intestinal mucosa have better adhesion to the host intestinal epithelial cells compared to bacteria in the intestinal contents. In this study, lactic acid bacteria were isolated from the intestinal mucosa of broiler chickens and investigated as the substitution to antibiotic in broiler production. Results In addition to acid resistance, high temperature resistance, antimicrobial sensitivity tests, and intestinal epithelial cell adhesion, Enterococcus faecium PNC01 (E. faecium PNC01) was showed to be non-cytotoxic to epithelial cells. Draft genome sequence of E. faecium PNC01 predicted that it synthesized bacteriocin to perform probiotic functions and bacteriocin activity assay showed it inhibited Salmonella typhimurium from invading intestinal epithelial cells. Diet supplemented with E. faecium PNC01 increased the ileal villus height and crypt depth in broiler chickens, reduced the relative length of the cecum at day 21, and reduced the relative length of jejunum and ileum at day 42. Diet supplemented with E. faecium PNC01 increased the relative abundance of Firmicutes and Lactobacillus, decreased the relative abundance of Bacteroides in the cecal microbiota. Conclusion E. faecium PNC01 replaced antibiotics to reduce the feed conversion rate. Furthermore, E. faecium PNC01 improved intestinal morphology and altered the composition of microbiota in the cecum to reduce feed conversion rate. Thus, it can be used as an alternative for antibiotics in broiler production to avoid the adverse impact of antibiotics by altering the gut microbiota. Graphic Abstract

scholarly journals 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

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 % 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 64.20 % 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. 

How growth parameters of sexed native Aseel chickens affected when fed with selenium supplemented diets during three growth phases

2017 ◽  
Author(s):  
Waseem Muhammad Zia ◽  
Anjum Khalique ◽  
Saima Naveed ◽  
Jibran Hussain
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Parameters ◽  
Body Weight Gain ◽  
Control Diet ◽  
Growth Phases ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Group A ◽  
Group B

In total, 240 three-weeks-old sexed birds (191.06±6.01g), 120 + 120 from Lakha, Mushki, Peshaweri and Mianwali varieties of local Aseel were used to determine the influence of selenium forms on growth during three growth phases. Birds were divided into four equal groups, 60 birds/variety (30 + 30 ), further subdivided into A, B and C treatment groups, 10 bids/treatment. Each group was allocated starter, grower and finisher diets. Group A was offered the diet supplemented with 0.3 ppm Se-enriched yeast and the diet of group B included 0.3 ppm sodium selenite, while group C was fed with un-supplemented control diet. Birds were maintained individually for 18 weeks. Feed intake was decreased, while, body weight gain, feed conversion ratio (FCR) and body weight gain were improved in males and females of Lakha, while best results detected in males during all growth phases in Se-enriched yeast fed groups. In conclusion, Se-enriched yeast had the positive effect in improving growth parameters of native Aseel.

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

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.

scholarly journals Perbandingan Aktivitas Ekstrak Kulit Buah Manggis dan Berbagai Antioksidan terhadap Penampilan Broiler

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Agung Adi Candra
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Vitamin E ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Feed Conversion ◽  
Fruit Extract ◽  
Mangosteen Peel ◽  
Carcass Performance ◽  
Peel Extract

The aims of this study to determine the mangosteen peel extract on performance, percentage and carcass performance of broilers. This study used 200 broiler chickens were distributed into five treatments with 10 replications and each group of 4 broiler. The treatment groups were: control / blank, broilers with the addition of anti-oxidants synthesis (vitastress), the chickens are kept by using tocopherol, extracts of mangosteen rind 60 mg, and mangosteen peel extract 120 mg. Broilers were reared in the stable open as tropical enclosure models show weight gain diverse. The highest increase in keoompok mangosteen rind flour administration of 120 mg (equivalent to 2 capsules administration) followed by administration of vitamin E, an antioxidant synthesis and control. Mangosteen fruit extract 120 mg, equivalent to 2 capsules administration can increase body weight gain. While the mangosteen fruit extract 60 (1 capsule) gives the equivalent effect of vitamin E and antioksidang synthesis on the market. This implies the work of the mangosteen fruit extract capable meningkan body weight gain in giving 120 mg (2 capsules per cow per day). While the feed conversion rate (feed Conversion ratio) or defined as the ratio of the ability to convert feed into the ration in the treatment group in order from the smallest is the group with the administration of 2 capsules of 1.04 mangosteen mangosteen deilanjutkan 1 capsule of 1.3; antioxidants and vitamin E sinetesis of 1.4 and 1.7 control. Mangosteen 2 capsules a day is able to provide the ability to convert 1.04 kg of feed into 1 kg of meat. It gives an overview of the advantages for the farmer to use mangosteen peel extract as an antioxidant. Keywords: Mangosteen, Performa, antioxidant, broiler

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