Effects of medicinal plant powder as feed additives on growth performance, carcass characteristics, and immune response of Coturnix japonica against avian influenza and Newcastle disease vaccine virus

2019 ◽  
Vol 28 (6) ◽  
pp. 1581-1588 ◽  
Author(s):  
Hassan Habibi ◽  
Najmeh Ghahtan
Keyword(s):  
Immune Response ◽  
Medicinal Plant ◽  
Avian Influenza ◽  
Growth Performance ◽  
Newcastle Disease ◽  
Carcass Characteristics ◽  
Vaccine Virus ◽  
Feed Additives ◽  
Coturnix Japonica ◽  
Newcastle Disease Vaccine

Effects of dietary supplementation of cinnamaldehyde and formic acid on growth performance, intestinal microbiota and immune response in broiler chickens

2017 ◽  
Vol 57 (5) ◽  
pp. 821 ◽  
Author(s):  
M. Pathak ◽  
G. P. Mandal ◽  
A. K. Patra ◽  
I. Samanta ◽  
S. Pradhan ◽  
...  
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Antibody Titer ◽  
Newcastle Disease ◽  
Broiler Chickens ◽  
Feed Additives ◽  
Growth Promoter ◽  
Treatment Groups ◽  
E Coli ◽  
Newcastle Disease Vaccine

An experiment was conducted to investigate the effects of replacing antibiotic growth promoter (AGP) with a combination of essential oil and organic acids (EO + OA) on growth performance, gut microbiota and immune response in broiler chickens. In Experiment 1, 320 day-old broiler chicks were randomly distributed to 32 pens with 10 birds in each pen and the pens were equally allotted to four treatment groups. In Experiment 2, 120 day-old chicks were divided into the same four treatment groups, each group containing three replicated pens with 10 birds in each pen. The groups were (1) Negative Control (NC) without AGP or other growth-promoting feed additives; (2) AGP (NC + enramycin; 125 mg/kg feed; (3) OA (NC + OA; 500 mg/kg feed); and (4) EO + OA (NC + a combination of cinnamaldehyde and calcium formate; 500 mg/kg feed). Experiment 1 lasted for 40 days, whereas Experiment 2 continued for 28 days. In Experiment 2, all birds were orally challenged with Escherichia coli (108 bacteria/bird) on Day 14. Overall intake, growth and feed conversion ratio (FCR) on Day 40 had no difference (P > 0.05) among the groups in Experiment 1. In Experiment 2, growth, feed intake and FCR were not affected by any dietary treatments until Day 14, but after being challenged with E. coli, bodyweight gain and FCR improved (P < 0.05) for AGP and EO + OA compared with NC. Mortality rate was also lower (P < 0.05) for AGP and EO + OA than NC in Experiment 2. Villi height was higher (P < 0.001) in OA and EO + OA groups compared with NC and AGP groups. Any treatment did not affect (P > 0.05) the counts of total bacteria, E. coli and Lactobacillus in the contents of ileum and caecum. However, Salmonella counts in the ileal and caecal contents decreased (P < 0.001) for AGP, OA and EO + OA compared with NC group. Clostridium counts were lower for EO + OA group than for NC and AGP groups in the ileum, and for AGP, OA and EO + OA groups than for NC in the caeca (P < 0.05). Antibody titer on Day 35 against Newcastle disease vaccine was higher in EO + OA group than in NC, AGP and OA groups (P < 0.001). In conclusion, EO + OA did not affect growth and FCR in broilers. However, AGP and EO + AO improved growth performance and FCR after being challenged with E. coli. Moreover, EO + OA was effective in reducing the Clostridium count in the small intestine and caecum and increasing the villus height and antibody titer against Newcastle disease vaccine.

scholarly journals Growth performance and immune response to Newcastle disease in four gene pools of indigenous chicken in Rwanda

2020 ◽  
Vol 1 (2) ◽  
pp. 42-50
Author(s):  
Richard Habimana ◽  
Kiplangat Ngeno ◽  
Anselme Shyaka ◽  
Martin Ntawubizi ◽  
Janvier Mahoro ◽  
...  
Keyword(s):  
Immune Response ◽  
Newcastle Disease Virus ◽  
Growth Performance ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Gene Pool ◽  
Growth Patterns ◽  
Gene Pools ◽  
Indigenous Chicken ◽  
Newcastle Disease Vaccine

In Rwanda, the most prevalent livestock farming activity carried out to improve livelihoods in rural areas is poultry farming. The most common bird species raised for egg and meat production is indigenous chicken (IC). Despite its economic significance, the improvement programs in Rwanda have given IC little attention. There is, therefore, little documentation on their production and disease resistance performance. This study aimed at evaluating the growth performance and immunologic response of IC against Newcastle disease vaccine in four gene pools in Rwanda. One hundred eighty-nine (189) IC from four gene pools were kept on-station using a completely randomized design. Thereafter, the IC were vaccinated with a live commercial Newcastle disease virus. Data on body weight were collected weekly for 20 weeks whereas serum samples were collected after 35 days. Antibody responses were determined using indirect ELISA. Analysis of variance was performed using the SAS Generalised Linear Model procedure. Growth patterns were modelled using the logistic function. Results revealed a highly significant difference (P<0.001) for growth performance and antibody response to Newcastle disease vaccine among the four gene pools. Gene pool A was the heaviest (1.6 kg) in the period of 20 weeks and gene pool C expressed the highest immune response (8,161antibody titres) for Newcastle disease vaccine (P<0.001). The results indicated that the selection of gene pool A in breeding could yield IC with good growth performance trait whilst gene pool C could be selected for its higher immunity against Newcastle disease virus.

scholarly journals Effects of polysaccharide from Ophiopogon japonicus on immune response to Newcastle disease vaccine in chicken

2016 ◽  
Vol 36 (12) ◽  
pp. 1155-1159 ◽  
Author(s):  
Xu Song ◽  
Mei Cao ◽  
Zhongqiong Yin ◽  
Renyong Jia ◽  
Yuanfeng Zou ◽  
...  
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Ophiopogon Japonicus ◽  
Newcastle Disease Vaccine

scholarly journals Comparative safety and efficacy of two bivalent vaccines containing Newcastle disease LaSota and avian influenza H9N2 Sidrap isolate formulated with different oil adjuvants

2020 ◽  
Vol 13 (11) ◽  
pp. 2493-2501
Author(s):  
Jossie Intan Cahyani ◽  
Sitarina Widyarini ◽  
Michael Haryadi Wibowo
Keyword(s):  
Immune Response ◽  
Avian Influenza ◽  
Newcastle Disease ◽  
Hemagglutination Inhibition ◽  
Mineral Oil ◽  
Economic Losses ◽  
Poultry Industry ◽  
Bivalent Vaccine ◽  
Hemagglutination Inhibition Test ◽  
White Mineral

Background and Aim: Newcastle disease (ND) and avian influenza (AI) are two devastating diseases of poultry, which cause great economic losses to the poultry industry and disrupt food security in our country. The use of ND-AI inactive bivalent vaccine is very effective and economical to prevent and control ND and AI disease. Bivalent ND LaSota-AI H9N2 vaccine is not yet available in Indonesia. The inactivated vaccines used in poultry industry often require oil adjuvant to elicit a sufficient immune response. This study aimed to develop the bivalent inactive vaccines containing ND LaSota and AI H9N2 Sidrap isolate which are local isolates as poultry vaccine candidates, and formulated with two different commercial adjuvants, then compared. Materials and Methods: Two vaccines bivalent were prepared by emulsifying inactivated Newcastle disease virus (LaSota strain) and AI H9N2 Sidrap isolate viruses with Marcol white mineral oil and Montanide ISA70 adjuvants. Both of bivalent vaccines were tested for safety (physical and histopathological at the injection site) and efficacy in specific-pathogen-free chickens. Parameters used for the evaluation of the efficacy were immunogenicity by hemagglutination inhibition and protection percentage. Results: Both bivalent vaccines are safe to use. Post-vaccination (PV) immune response was observed using a hemagglutination inhibition test at 2, 3, 4, 5, 6, 7, and 8 weeks of PV. The bivalent vaccine B gives a better immune response to ND at 2, 3, and 4 weeks of PV (p<0.05) compared to the bivalent vaccine A, but in 5, 6, 7, and 8 weeks, the PV does not show differences in the immune response. The immune response to AI H9N2 showed differences at weeks 2 and 3 PV (p<0.05) with the bivalent vaccine B indicated higher immunity. A single immunization with both bivalent vaccines induces 100% protection in chickens that have been vaccinated against the deadly challenge with the virulent ND virus. Conclusion: Both of bivalent vaccines are safe to use and provide good efficacy against virulent ND viruses, but bivalent vaccine B (with Montanide ISA70 adjuvant) shows better immune response than bivalent vaccine A (Marcol white mineral oil adjuvant).

scholarly journals 184 Effects of phytogenic feed additives and Ractopamine HCl on growth performance and carcass characteristics in grow-finish pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 82-82
Author(s):  
Lan Zheng ◽  
Shelby Ramirez ◽  
G Raj Murugesan ◽  
Erika Hendel ◽  
Antonia Tacconi
Keyword(s):  
Growth Performance ◽  
Phase 1 ◽  
Carcass Characteristics ◽  
Feed Additives ◽  
Carcass Weight ◽  
Commercial Product ◽  
Feed Additive ◽  
Feeding Program ◽  
Dietary Treatments ◽  
Similar Growth

Abstract The objective of this experiment was to evaluate the effects of a phytogenic feed additive (PFA-F, Digestarom® Finish, BIOMIN America Inc.) on growth performance and carcass characteristics of grow-finish pigs compared to a control, two commercial PFA products (A and B), and a ractopamine feeding program. Two hundred pigs (Choice Genetics, BW = 24.88 ± 0.53 kg) were randomly allotted to 5 dietary treatments and fed diets based on 4 dietary phases. Dietary treatments consisted of: CON, a corn-soybean meal based diet; RAC, 4.5 ppm Ractopamine HCl was added into CON for the last 21 d; PFA-A (commercial product A) was added into CON when pigs reached 90 kg of BW; PFA-B (commercial product B) was added into CON from 75 kg of BW; PFA-F was added into CON from the beginning (25 kg of BW). Body weight and feed disappearance were recorded at the end of each phase, and carcass traits were measured at the end of the trial. Data were analyzed using the Mixed procedure of SAS. No differences were observed from phase 1 to phase 3 among the treatments. At the end of phase 4, RAC had a higher (P &lt; 0.05) BW than the CON, PFA-A, or PFA-B (127.5 vs.123.1 or 121.5 kg); however, no difference between RAC and PFA-F in BW (127.5 vs.124.0 kg) was found. Pigs fed PFA-F had a higher (P &lt; 0.05) hot carcass weight than those of fed CON or PFA-B (93.0 vs. 88.8 or 88.8 kg). No differences were found in lean percentage, fat depth, and loin depth among the treatments. In conclusion, PFA-F (Digestarom Finish) supplementation resulted in similar growth performance and hot carcass weight when compared to a Ractopamine feeding program during the grow-finish period, whereas either commercial product A or B had significantly lower performance than feeding Ractopamine.

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