Impact of parasitism in goat production

Fthenakis, George C.; Papadopoulos, E.

doi:10.1016/j.smallrumres.2017.04.001

Cited by 28 publications

(27 citation statements)

References 26 publications

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“…An alternate pathogenetic mechanism was presented by Fetterer and Rhoads [ 8 ], who described that the helminth produced a haemolytic factor that caused distinct morphological changes on the surface of erythrocytes of affected sheep. Nevertheless, the primary consequence of the infection is the significant reduction in the production of infected animals, which includes a decrease in the growth of young animals, a decrease in milk production of lactating animals and in fibre production [ 9 ]. In the end, all these result in severe economic losses for farmers [ 10 ].…”

Section: Background: the Haemonchus Parasitesmentioning

confidence: 99%

Haemonchosis: A Challenging Parasitic Infection of Sheep and Goats

Arsenopoulos

Fthenakis

Katsarou

et al. 2021

Animals

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The paper reviews the challenges about haemonchosis—a significant and common parasitic infection of small ruminants. Haemonchus contortus is a highly pathogenic parasite that localises in the abomasum of affected animals and exerts its pathogenicity by blood-sucking activity, adversely affecting the health and productivity of animals. The first challenge is the uneven distribution of the infection globally, this being more prevalent in tropical and subtropical and warm temperate and summer rainfall regions than in cool and cold temperate and arid regions; hence, this leads in differences in the approaches required for its control. Another challenge is the widespread presence of Haemonchus strains resistant to the various anthelmintics available: Benzimidazoles, imidazothiazoles, macrocyclic lactones, closantel and monepantel, which makes the control of the infection difficult. The third challenge refers to the difficulty of diagnosing the disease, given that field evidence can provide suspicion about the infection, which needs to be subsequently confirmed by laboratory tests through parasitological or molecular techniques. The final challenge relates to the difficulties in the control of the infection and the necessity to use pharmaceutical products cautiously and with a planned approach, to avoid further development of anthelmintic resistance, also given that use of a recently licenced vaccine is not widespread. In conclusion, at the moment, we should be concerned, but not worried, about this infection, and apply correctly the appropriate health management plans.

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Section: Background: the Haemonchus Parasitesmentioning

confidence: 99%

Haemonchosis: A Challenging Parasitic Infection of Sheep and Goats

Arsenopoulos

Fthenakis

Katsarou

et al. 2021

Animals

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“…A high contribution of skin rejection (56%) due to external parasites has been reported in Ethiopian tanneries [14]. Different studies explained the impact of ectoparasites on the skin damage in the world [13,14]. This might be indicating us the continuous existence of mange mite infection in the study district despite the regular acariced campaign conducting to all small ruminants all over Tigray region every year.…”

Section: Discussionmentioning

confidence: 83%

“…Our nding was higher than the previous ndings by [10] in Shaba leather industry and less than the ndings of [11] in Amhara region. A high contribution of skin rejection (56%) due to external parasites has been reported in Ethiopian tanneries [14]. Different studies explained the impact of ectoparasites on the skin damage in the world [13,14].…”

Section: Discussionmentioning

confidence: 99%

Skin defects affecting goat skin quality in Tanqua Abergelle district, Northern Ethiopia

Assefa¹,

Nigus²

2020

Preprint

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Background: Skins of goat are among export animal products of the country that contributes foreign currency earnings. But many skins are rejected in the tanneries of Ethiopia due to their low quality. The purpose of this study was to identify the major defects causing low quality of skins in Tanqua Abergelle districts.Methods: Randomly 60 skins of goat were collected to identify the major defects that degrade the quality of skin in Tanqua Abergelle districts and were analyzed in Sheba Leather Industry at the wet-blue stage of processing.Results: Accordingly the major defects encountered were scratch (83.33), wound (50.00), knife (46.67), improper bleeding (43.33), demodectic mange (20.00), poor substance (18.33), pox/wart (16.67), age (6.67), hole (6.67), crack (5.00), brand mark (1.67) and putrification (1.67), percent respectively. The frequently detected defects were scratch (83.33%) followed by wound (50%) and least detected defects were putrification (1.67%) and brand mark (1.67%). From the total defects the proportion of demodectic mange was 20%. Out of the 60 skins 58 of them were encountered two and more than two defects. Those skins with more than two defects and above have been graded under 6 and above. According to Sheba Leather Industry guidelines, those skins graded under grades greater than 7 are rejected. Therefore, out of 60 goat skins 26 (43.3%) of them has been rejected. Most of the rejected skins were affected with at least two defects and above.Conclusions: In conclusion, around 12 major defects that have high impact on the quality of skin have been identified. Therefore, to minimize the defects of the skin extension service should be promoted to increase the public and butchers awareness and collaborative work with stakeholders should be enhanced.

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“…Till now most data on the host-parasite interactions are accumulated through ovine (sheep) studies [12,16]. Helminthes in the abomasum and related area of host still remains as one of the major threats that is responsible for weight loss, anemia, reduced performance and production in goat [17,18].…”

Section: Introductionmentioning

confidence: 99%

Goat Immunity to Helminthes

Ayaz¹,

Sheikh²,

Aziz³

et al. 2020

Goats (Capra) - From Ancient to Modern

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Goat hematology, especially, shares considerable attention since the last 1980s. Large number of discrepant normal hematologic values is reported. The discrepancies resulted came from the differences in age group, breed, and health standing of goats. This makes it further complex with variances in climate of the region, its environment, and size and methodology applied. With time, many inconsistencies, reasonably standardization in normal caprine kinetic hematologic values, are in place. Both goats and sheep are infested by the same key digestive tract helminthes (DTHs) diseases. Helminthes are exceedingly ubiquitous worm parasites that progressed to adopt with many erudite means to evade host immune system.

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Impact of parasitism in goat production

Cited by 28 publications

References 26 publications

Haemonchosis: A Challenging Parasitic Infection of Sheep and Goats

Haemonchosis: A Challenging Parasitic Infection of Sheep and Goats

Skin defects affecting goat skin quality in Tanqua Abergelle district, Northern Ethiopia

Goat Immunity to Helminthes

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