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Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina

The aim of this work was to study the epidemiology and harmful effects of gastrointestinal nematodes (GINs) on dairy goats maintained in an intensive system. Two groups of goats were studied: untreated group (UG) (subdivided into UGjun goats that kidded in June, and UGjul goats that kidded in July)...

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Autores principales: Suarez, Victor H., Martínez, Gabriela M., Viñabal, Alberto E., Alfaro, José R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AOSIS 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238662/
https://www.ncbi.nlm.nih.gov/pubmed/28281775
http://dx.doi.org/10.4102/ojvr.v84i1.1240
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author Suarez, Victor H.
Martínez, Gabriela M.
Viñabal, Alberto E.
Alfaro, José R.
author_facet Suarez, Victor H.
Martínez, Gabriela M.
Viñabal, Alberto E.
Alfaro, José R.
author_sort Suarez, Victor H.
collection PubMed
description The aim of this work was to study the epidemiology and harmful effects of gastrointestinal nematodes (GINs) on dairy goats maintained in an intensive system. Two groups of goats were studied: untreated group (UG) (subdivided into UGjun goats that kidded in June, and UGjul goats that kidded in July) and treated group (TG) (with no subgroups, treated with monepantel: 3.75 mg/kg, orally, monthly). Eggs per gram (epg) in faeces were counted, faecal culture was performed to differentiate nematode genera and milk production was measured. Differences between groups were compared using least squares means analysis of variance (milk production and milking period length) and Kruskal–Wallis test (faecal egg counts). Nematode infection was moderate, with Haemonchus and Trichostrongylus being the dominant genera; the faecal egg counts reached the level of 2000 only once throughout the study. Goats that kidded in June had higher egg count after parturition (UGjun = 1564 epg), with significant differences (p < 0.04) from those that still had not kidded (UGjul = 962 epg). Over the entire trial period, the mean total milk production of TG (399.5 L ± 34.0 L) was significantly higher (p < 0.05) than that of UG (281.6 L ± 37.5 L), representing an increase of 41.8% in total milk yield. The results of this study show a post-partum peak in egg count and a negative effect of GINs on milk yield, even with moderate infections.
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spelling pubmed-62386622018-11-26 Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina Suarez, Victor H. Martínez, Gabriela M. Viñabal, Alberto E. Alfaro, José R. Onderstepoort J Vet Res Original Research The aim of this work was to study the epidemiology and harmful effects of gastrointestinal nematodes (GINs) on dairy goats maintained in an intensive system. Two groups of goats were studied: untreated group (UG) (subdivided into UGjun goats that kidded in June, and UGjul goats that kidded in July) and treated group (TG) (with no subgroups, treated with monepantel: 3.75 mg/kg, orally, monthly). Eggs per gram (epg) in faeces were counted, faecal culture was performed to differentiate nematode genera and milk production was measured. Differences between groups were compared using least squares means analysis of variance (milk production and milking period length) and Kruskal–Wallis test (faecal egg counts). Nematode infection was moderate, with Haemonchus and Trichostrongylus being the dominant genera; the faecal egg counts reached the level of 2000 only once throughout the study. Goats that kidded in June had higher egg count after parturition (UGjun = 1564 epg), with significant differences (p < 0.04) from those that still had not kidded (UGjul = 962 epg). Over the entire trial period, the mean total milk production of TG (399.5 L ± 34.0 L) was significantly higher (p < 0.05) than that of UG (281.6 L ± 37.5 L), representing an increase of 41.8% in total milk yield. The results of this study show a post-partum peak in egg count and a negative effect of GINs on milk yield, even with moderate infections. AOSIS 2017-02-28 /pmc/articles/PMC6238662/ /pubmed/28281775 http://dx.doi.org/10.4102/ojvr.v84i1.1240 Text en © 2017. The Authors http://creativecommons.org/licenses/by/2.0/ Licensee: AOSIS. This work is licensed under the Creative Commons Attribution License.
spellingShingle Original Research
Suarez, Victor H.
Martínez, Gabriela M.
Viñabal, Alberto E.
Alfaro, José R.
Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title_full Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title_fullStr Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title_full_unstemmed Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title_short Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina
title_sort epidemiology and effect of gastrointestinal nematodes on dairy goats in argentina
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238662/
https://www.ncbi.nlm.nih.gov/pubmed/28281775
http://dx.doi.org/10.4102/ojvr.v84i1.1240
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