Heterakis gallinarum and Histomonas meleagridis DNA Persists in Chicken Houses Years after Depopulation

2021 ◽  
pp. 109536
Author(s):  
John F. Beckmann ◽  
Teresa Dormitorio ◽  
Seun O. Oladipupo ◽  
Maria Tereza Bethonico Terra ◽  
Kathy Lawrence ◽  
...  
Keyword(s):  
Heterakis Gallinarum

Regulation of nematode fecundity in the ring-necked pheasant (Phasianus colchicus): not just density dependence

Parasitology ◽  
1999 ◽  
Vol 118 (4) ◽  
pp. 417-423 ◽  
Author(s):  
D. M. TOMPKINS ◽  
P. J. HUDSON
Keyword(s):  
Density Dependence ◽  
Good Predictor ◽  
Phasianus Colchicus ◽  
Common Pattern ◽  
Infection Experiment ◽  
Stunted Growth ◽  
Heterakis Gallinarum ◽  
Parasite Intensity ◽  
Inverse Density Dependence ◽  
The Common

Patterns of nematode fecundity were investigated for infections of the caecal worm Heterakis gallinarum in the ring-necked pheasant (Phasianus colchicus). Worm length was a good predictor of parasite fecundity. After controlling for worm length no other factors, including parasite intensity, were related to worm fecundity. Density dependence in worm size was detected in natural infections at parasite intensities above a threshold of 96 worms (worm size decreased with increasing parasite intensity). However, below this threshold, worm size actually decreased with decreasing parasite intensity (inverse density dependence). The interaction between density dependence and inverse density dependence in regulating the development and subsequent fecundity of H. gallinarum worms in ring-necked pheasants was demonstrated in an infection experiment. Density dependence was observed in the stunted growth of worms in heavily infected hosts, relative to worms in lightly infected hosts. Inverse density dependence in worm size was the common pattern across hosts by the end of the experiment, when parasite intensities were below the density dependence threshold. This is the first study to document both density dependence and inverse density dependence in parasite fecundity in the same host–helminth system.

STUDI NEMATODA PADA AYAM PETELUR (Gallus gallus) STRAIN ISA BROWN DI PETERNAKAN MANDIRI KELURAHAN TEGAL SARI, KECAMATAN GADING REJO, KAB. PRINGSEWU, LAMPUNG

2017 ◽  
Vol 4 (2) ◽  
pp. 23-27
Author(s):  
Rio Riski Ananda ◽  
Emantis Rosa ◽  
Gina Dania Pratami
Keyword(s):  
Gallus Gallus ◽  
Ascaridia Galli ◽  
Purposive Sampling ◽  
Heterakis Gallinarum ◽  
Syngamus Trachea

Ayam petelur merupakan ayam yang khusus dipelihara untuk diambil telurnya. Kandungan protein telur yang tinggi serta harganya yang terjangkau membuat ayam jenis petelur ini banyak dibudidayakan. Namun dalam pembudidayaannya masih sering terdapat kendala, salah satunya disebabkan oleh berbagai nematoda yang menyebabkan berbagai macam infeksi. Penelitian ini telah dilaksanakan pada bulan April 2017 sampai bulan Juni 2017. Pengambilan sampel dilakukan di Peternakan mandiri, di Kelurahan Tegal Sari, Kecamatan Gading Rejo, Kabupaten Pringsewu, Provinsi Lampung dan identifikasi dilakukan di Balai Veteriner Lampung. Tujuan penelitian ini adalah untuk mengetahui jenis telur nematoda dan mengetahui nilai prevalensi parasit tersebut pada ayam.petelur. Metode pengambilan sampel yang digunakan pada penelitian ini adalah purposive sampling, yaitu mengambil sampel feses dari setiap kandang yang diduga terinfeksi nematoda sebanyak 100 sampel. Penghitugan jumlah telur parasit menggunakan uji Mc. Master. Hasil penelitian pada ayam strain ISA Brown ditemukan nematoda Ascaridia galli, Heterakis gallinarum dan Syngamus trachea. Nilai prevalensi serangan nematoda paling tinggi sebesar 43% oleh Ascaridia galli dan nilai prevalensi paling rendah sebesar 4% oleh Syngamus trachea.

scholarly journals Prevalence of Gastrointestinal Helminth Infections in Indigenous Chickens of Selected Areas of Barisal District, Bangladesh

2014 ◽  
Vol 12 (2) ◽  
pp. 135-139 ◽  
Author(s):  
MN Alam ◽  
M Mostofa ◽  
MAHNA Khan ◽  
MA Alim ◽  
AKMA Rahman ◽  
...  
Keyword(s):  
Cross Section ◽  
Helminth Parasites ◽  
Ascaridia Galli ◽  
Routine Examination ◽  
Pathological Lesions ◽  
Heterakis Gallinarum ◽  
Indigenous Chickens ◽  
Gastrointestinal Helminth ◽  
Helminth Infections ◽  
Different Types

The prevalence of gastrointestinal helminth infections and the gross pathological lesions produced by them were studied from February 2012 to January 2013 in the Department of Pharmacology of Bangladesh Agricultural University, Mymensingh. In this study, a total of 320 indigenous chickens aged ranging from 2 to 4 months were examined to identify the different types of gastrointestinal helminth infections in indigenous chickens. During routine examination, six species of helminth parasites were recorded, of which five species of nematodes such as Ascaridia galli, Heterakis gallinarum, Capillaria spp, Acuaria hamulosa and Dispharynx spiralis; and one species was cestode called Raillietina tetragona. The highest prevalence was observed for Ascaridia galli (41.56%) followed in descending order by Raillietina tetragona (19.68%), Heterakis gallinarum (15.62%), Acuaria hamulosa (8.75%), Capillaria spp. (4.68% ) and Disopharinx spiralis (1.56%). The gross pathological lesions were observed in case of Acuaria hamulosa and Heterakis gallinarum infection. In case of Acuaria hamulosa infection keratinization of gizzard mucosa and cross section of adult Acuaria hamulosa were seen along with marked infiltration of neutrophils. The results of this study suggest that both nematodes and cestodes are highly prevalent in indigenous chickens in the studied area.DOI: http://dx.doi.org/10.3329/bjvm.v12i2.21275 Bangl. J. Vet. Med. (2014). 12 (2): 135-139 

On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken

1962 ◽  
Vol 36 (1-2) ◽  
pp. 107-142 ◽  
Author(s):  
Holger Madsen
Keyword(s):  
Respiratory Disease ◽  
Chronic Respiratory Disease ◽  
The Other ◽  
Ascaridia Galli ◽  
Heterakis Gallinarum ◽  
Intestinal Nematode ◽  
Small Intestinal

Measured dosages of larvated eggs of the caecal nematode, Heterakis gallinarum and the small intestinal nematode, Ascaridia galli were fed to domestic chickens, in order to study the distribution of the numbers of worms developing and the influence on the worms and the chicks of the treatments in the experiments. These treatments are summarised in Table 1, p. 110.Chronic respiratory disease, accidentally acquired by the groups of chicks in varying degrees appeared to have no influence on the course of the worm infections and the ensuing blackhead (Table 2, p. 112).Following ingestion of eggs of Heterakis, blackhead occurred in three of four groups of chicks, apparently in varying degrees, possibly related to the size of the egg dosage and to differences in susceptibility to Heterakis (Table 1, p. 110). The chicks inthe group which did not contract blackhead were considerably older than those of the other groups.

scholarly journals A Mathematical Model of the Population Dynamics of Heterakis Gallinarum in Turkeys (Meleagridis Gallopavo)

2004 ◽  
Vol 83 (10) ◽  
pp. 1629-1635 ◽  
Author(s):  
K. Chalvet-Monfray ◽  
P. Sabatier ◽  
C. Chauve ◽  
L. Zenner
Keyword(s):  
Mathematical Model ◽  
Population Dynamics ◽  
Heterakis Gallinarum

The effect of an experimental infection of the nematode Heterakis gallinarum on hand-reared grey partridges Perdix perdix

Parasitology ◽  
2002 ◽  
Vol 124 (5) ◽  
pp. 529-535 ◽  
Author(s):  
R. B. SAGE ◽  
M. I. A. WOODBURN ◽  
C. DAVIS ◽  
N. J. AEBISCHER
Keyword(s):  
Muscle Mass ◽  
Experimental Infection ◽  
Breast Muscle ◽  
Clinical Effects ◽  
Lower Body ◽  
Primary Host ◽  
Grey Partridge ◽  
Heterakis Gallinarum ◽  
Effect Of Treatment ◽  
Negative Impacts

We compared 26 hand-reared grey partridges given an experimental infection of the caecal nematode Heterakis gallinarum with 26 uninfected ones. Under laboratory conditions after 91 days, there were no measurable clinical effects of the infection. We found no effect of treatment on the amount of food eaten or on caecal dropping production. However, treated birds, in particular females, developed slightly lower body mass (around 2%) compared to the controls. At post-mortem examination, we found a positive relationship between breast muscle mass and the number of worms collected from the caeca of treated birds. Treated birds with no worms when examined had smaller breast muscle mass (4·6%) compared to the uninfected control birds. These results are largely different to those found in a similar study that documented significant negative impacts on most of these factors in 8 infected birds compared to 6 controls. Its findings were used in a published model to support a hypothesis that H. gallinarum maintained in the environment by common pheasants, the primary host for this worm, could negatively affect wild grey partridge productivity and survival. In the same model our data would not support this hypothesis. Possible explanations for the different results from the 2 experiments are discussed. Together they suggest that only in certain, as yet unidentified circumstances, could experimental H. gallinarum infections have deleterious effects on hand-reared grey partridges.

Acquired resistance to experimental Heterakis gallinarum infections in pheasants: Relative immunity conferred by exposure to heterakids of different ages

1974 ◽  
Vol 48 (3) ◽  
pp. 155-159
Author(s):  
Anne M. Chute ◽  
Everett E. Lund
Keyword(s):  
Acquired Resistance ◽  
Challenge Infection ◽  
Challenge Dose ◽  
Heterakis Gallinarum ◽  
Subsequent Challenge ◽  
Different Ages

AbstractRing-necked pheasants were exposed to artificially limited 10-day infections with heterakids either from 0-10 or 10–20 days old. The number and length of worms developing from a subsequent challenge dose were compared with those in nonimmunized control birds and with those in birds that had been exposed to a continuous immunizing infection for a total of 49 days: 28 days before challenge and 21 days during the challenge infection.

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