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  • Title: Effects of Midazolam on Food Intake in Budgerigars (Melopsittacus undulatus).
    Author: Martel A, Berg C, Doss G, Mans C.
    Journal: J Avian Med Surg; 2022 May; 36(1):53-57. PubMed ID: 35526164.
    Abstract:
    Currently, drug-induced stimulation of appetite is not commonly performed in hyporexic or anorexic companion psittacine birds. Instead, to prevent a catabolic state and weight loss, supplemental feedings are routinely performed by crop gavage. However, crop gavage is not without complications and is stressful to the patient and labor intensive. The objective of this study was to evaluate the effect of midazolam on food intake in healthy budgerigars. In a randomized, blinded, controlled study, change in food intake after intramuscular administration of midazolam (1 mg/kg) or a placebo-control treatment (0.9% saline) was evaluated in 12 healthy adult budgerigars (Melopsittacus undulatus). Food intake was quantified for 1 hour before and after drug administration. Birds were monitored for feeding behavior as well as signs of sedation. After midazolam administration, a median 6-fold (1.1-28) increase in food intake was recorded. In 3 of 6 (50%) birds, the food intake increase after midazolam administration was >10-fold (median 17-fold [10-28]), whereas in the remaining 3 birds, food intake increased by only 1.7-fold (1.1-1.8). The median amount of food ingested (16.7 g/kg [3.2-43.2 g/kg]) was significantly higher after midazolam administration compared with the control group (1.9 g/kg [0.0-19.7 g/kg], P = .015). The median time birds spent displaying feeding behavior after the midazolam injection was 18% (0-43%), compared with 1% (0-20%) in the control group after saline injection. Five of 6 (83%) birds showed signs consistent with mild sedation after midazolam administration. This study demonstrates that midazolam is an appetite stimulant in budgerigars. Future studies are needed to evaluate whether midazolam's effects on food intake are dose dependent and whether the duration of effect exceeds 1 hour.
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