This study is the ﬁrst parasitological survey dealing with goats at a regional scale in north- ern Italy. In particular, we characterized goat farms in Lombardy and investigated the risk factors of parasite infections there. Within our study area, both the breeding system and the size of the ﬂocks varied. In fact, large ﬂocks are mainly located down the valleys of Alpine areas and in the Prealps at low altitudes, such animals are reared under intensive husbandry. Medium-sized ﬂocks are mostly found in mountainous areas where goats are reared under extensive or semi-extensive systems. Autochthonous races, then, are impor- tant in some marginal areas where a farm economy is supported by the promotion of traditional goat products, e.g. typical cheese and meat derivatives. Signiﬁcant factors associ- ated with the presence of parasites are (i) breeding system, extensive for Moniezia benedeni, semi-extensive for Strongyloides; (ii) size of the farm, over 100 goats for Strongyloides; (iii) altitude, above 500 m a.s.l. and up to 1000 m a.s.l. for M. benedeni and Strongylida; (iv) pas- ture, Strongylida; (v) season, autumn for M. benedeni; (vi) separation of goats into groups, (Skrjabinema). Goats in ﬁrst lactation were signiﬁcantly more infected with Strongylida and Trichuris than multiparous ones (both p < 0.001). Eggs excretion of Strongyloides was higher in pregnant females (p < 0.001). Differences emerged also for Nematodirus and Strongylida when eggs excretion was related to pregnancy (p < 0.05 and p < 0.001, respectively), but epg values of these nematodes were signiﬁcantly higher in not pregnant individuals. Heavier infection with S. was found in lactating goats rather than in dry goats (p < 0.001), while the latter ones were more infected with Trichuris and Strongyloides (p < 0.05 and p < 0.001, respectively). In conclusion, according to the results of our survey, as to extensive hus- bandry we highly recommend correct practices in pasture management associated with a targeted programme of anthelminthic treatments for Stronylida and Cestoda. As to the rearing of large ﬂocks almost entirely indoor, we noted a higher presence of other parasites, i.e. Strongyloides, probably due to a high density of heads associated with a scarce sanitary management. Concerning, then, young goats in ﬁrst lactation and lactating females our data conﬁrmed that they both are more vulnerable to the infection with Strongylida, while preg- nant females are more prone to the infection with Strongyloides spp. This can be partially due to the synchronization of the reproductive cycle, as performed in most farms, and to the occurrence of the period of pregnancy in winter, when the animals are stabled indoor.
Breeding management in goat farms of Lombardy, northern Italy : risk factors connected to gastrointestinal parasites / M.T. Manfredi, A. Di Cerbo, S.A.G. Zanzani, K. Stradiotto. - In: SMALL RUMINANT RESEARCH. - ISSN 0921-4488. - 88:2-3(2010), pp. 113-118.
|Titolo:||Breeding management in goat farms of Lombardy, northern Italy : risk factors connected to gastrointestinal parasites|
MANFREDI, MARIA TERESA (Primo)
DI CERBO, ANNARITA (Secondo)
ZANZANI, SERGIO AURELIO GIORGIO (Penultimo)
|Parole Chiave:||Goat; Gastrointestinal parasites; Lombardy; Risk factors|
|Settore Scientifico Disciplinare:||Settore VET/06 - Parassitologia e Malattie Parassitarie degli Animali|
|Data di pubblicazione:||2010|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.smallrumres.2009.12.018|
|Appare nelle tipologie:||01 - Articolo su periodico|