A Review Sheep Production System, Yield, Quality and Preservation Methods in Ethiopia

Worku, Anteneh; Yadav, K.R.

doi:10.15580/gjas.2017.9.102917160

Cited by 2 publications

(2 citation statements)

References 41 publications

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“…For modern farming, restoration and development of sheep-breeding may be promising in terms of increasing effective land use, population employment rate and supply of the national sector of meat processing and light industry with raw material with curative properties (Banerjee et al, 2009;Anteneh & Yadav, 2017). One of factors that decreases the efficacy of sheep-breeding development and causes economic losses is helminthiases, particularly strongyloidiasis caused by Strongyloides papillosus (Dimitrijevic et al, 2016;Boyko & Brygadyrenko, 2017, 2019a, 2019bBoyko et al, 2009Boyko et al, , 2020.…”

Section: Introductionmentioning

confidence: 99%

Pathohistological changes in the intestine, lungs and liver of sheep with spontaneous strongyloidiasis

Sorokova

Євстаф’єва

Shchebentovska

et al. 2021

Regul. Mech. Biosyst.

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Sheep diseases of invasive and non-invasive etiology are among the restrictive factors for Ukrainian sheep-breeding. The helminthiases are among the most widespread parasitical diseases, and particularly strongyloidiasis causes significant losses for sheep farms in cases of severe course. Young sheep are the most susceptible, showing growth and developmental lag, and death occurs in cases of high invasiveness due to severe pathologies induced by the parasites. Thus the aim of the present work was to study the morphological and histological changes in the intestine, lungs and liver of sheep with strongyloidiasis. Results of pathoanatomy showed that under spontaneous sheep strongyloidiasis with the intensity of the invasion from 50 to 136 specimens of nematodes, the main pathological changes occur at Strongyloides localization sites: intestine and parenchymatous organs (lungs and liver). Particularly, the small intestine showed catarrhal desquamative enteritis. Morphological changes of its mucosa demonstrated necrosis of the apical part of the villi, desquamation of epithelium, constriction and decrease of intestinal crypts. At the same time, massive diffusive cell infiltrates were detected in the intestinal mucosa lamina propria with the prevalence of eosinophilic leukocytes, inflammatory thickening of villi cylindrical epithelium and its mucous metamorphosis, pyknosis and lysis of enterocyte nuclei. In the large intestine, necrosis of the mucosa was detected, with edema, effusion of serum-cell exudate in its canal, diffusive infiltration of lymphocytes, eosinophils and plasma cells in the intestinal mucosa lamina propria. Lung tissue demonstrated parasite larvae localized in canals of the bronchi and in alveoli. These sites had diffusive hemorrhages in lung parenchyma, signs of inflammation and thickening of interstitial tissue caused by damage to vessel walls due to migration of parasite larvae. Histological changes in the liver of sheep with strongyloidiasis showed the development of granular dystrophy and necrotic changes in hepatocytes.

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Section: Introductionmentioning

confidence: 99%

Pathohistological changes in the intestine, lungs and liver of sheep with spontaneous strongyloidiasis

Sorokova

Євстаф’єва

Shchebentovska

et al. 2021

Regul. Mech. Biosyst.

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“…The main aim of sheep farming is a full utilization of the biological potential of meat, wool and dairy productivity of sheep breeds (Rasali et al, 2006;Banerjee et al, 2009;Anteneh & Yadav, 2017). One of the approaches used is careful monitoring and prediction of the parasitological situation, the implementation of measures for the prevention and treatment of invasive diseases, especially nematodes of the gastrointestinal tract of sheep.…”

Section: Introductionmentioning

confidence: 99%

Morphological characteristic of Skrjabinema ovis (Nematoda, Oxyuridae) obtained from domestic sheep

Мельничук

Reshetylo

2020

Regul. Mech. Biosyst.

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Skrjabinemosis is a widely prevalent helminthiasis of sheep, goats and wild ruminants. It is caused by Skrjabinema ovis Skrjabin, 1915. Parasitization by S. ovis induces inflammatory processes of the large intestine, in skin around the anus and tail base, resulting in reduced productivity and weight loss. The measures of prevention and control of skrjabinemosis on sheep farms depend on the timely and accurate diagnosis, based on the reliable identification of nematodes. We studied the identification morphometric characters of this species The nematodes were obtained from the large intestine of 710 pasture-kept sheep (Ovis aries) on farms of Kyiv, Poltava and Zaporizhzhia regions ( Central and South-Eastern Ukraine). In total, 5723 adult S. ovis nematodes were collected, 1981 of which were males and 3742 were females. Sexual dimorphism was found in S. ovis both in metric and morphological parameters. The size dimorphism is characterized by values larger by 43.9–64.6% of 11 parameters in females compared to males. The differential characters of mature S. ovis males and females are morphological specifics of the mouth organ complex and the distribution of cuticular formations on the head end of the parasite. The lips of the female nematodes are anchor-shaped and adorned with tooth-like lamellae, and the lips of the males are oval and lack the tooth-like lamellae. Cuticular nodes on the head ends of the females are considerably longer and wider than in the males. The species-specific morphological characters of the males are the features of morphology and sizes of the pseudobursa, the shape and length of the spicule and gubernaculum, and their width parameters in different areas. In the identification of females, the morphology of the vulva and tail end, and the metric parameters of the location of the vulva, anus, and sizes of eggs in the uterus should be considered. Additional metric and morphological parameters are presented for use in the differentiation of males and females for better identification.

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A Review Sheep Production System, Yield, Quality and Preservation Methods in Ethiopia

Cited by 2 publications

References 41 publications

Pathohistological changes in the intestine, lungs and liver of sheep with spontaneous strongyloidiasis

Pathohistological changes in the intestine, lungs and liver of sheep with spontaneous strongyloidiasis

Morphological characteristic of Skrjabinema ovis (Nematoda, Oxyuridae) obtained from domestic sheep

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