Author: Ayrle, Hannah; Mevissen, Meike; Kaske, Martin; Nathues, Heiko; Gruetzner, Niels; Melzig, Matthias; Walkenhorst, Michael
Title: Medicinal plants – prophylactic and therapeutic options for gastrointestinal and respiratory diseases in calves and piglets? A systematic review Document date: 2016_6_6
ID: 1qs322ea_27
Snippet: In the subsequent bibliographic search 20,364 references (after removal of duplicates) were found for the 30 plants species (Table 2) . During the term-list search, the amount of relevant references led to a reduction of references with 6,800 remaining references. An ensuing random check of the excluded references confirmed the selected terms. The subsequent screening of titles led to a number of 2,797 eligible references, which were classified i.....
Document: In the subsequent bibliographic search 20,364 references (after removal of duplicates) were found for the 30 plants species (Table 2) . During the term-list search, the amount of relevant references led to a reduction of references with 6,800 remaining references. An ensuing random check of the excluded references confirmed the selected terms. The subsequent screening of titles led to a number of 2,797 eligible references, which were classified into the categories 'clinical references' (243) , 'in vivo references' (428) , 'in vitro references' (1258), 'pharmacognostic references' (704) and 'review references' (164) . The terminal screening of the abstracts of all clinical, in vivo and in vitro references revealed a final number of 418 references (77 clinical, 84 in vivo, 258 in vitro) (Additional file 3). Due to the fact that more than one reference could be defined from some studies, the systematic literature research led to a number of 378 studies representing the effects and efficacy of 29 plant species in 418 references. For one plant species, Quercus robur L., no references were found according to the criteria.
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