Formulated diets versus seed mixtures for psittacines

Area of Science:

• Avian Nutrition
• Zoology
• Comparative Nutrition

Background:

• Psittacines (parrots) are often inaccurately perceived as exclusively seed-eating.
• Wild psittacine diets are diverse, including flowers, fruits, leaves, cambium, and insects.
• Commercial seed mixes are nutritionally deficient, leading to health issues in pet birds.

Purpose of the Study:

• To evaluate the nutritional adequacy of commercial seed mixes for psittacines.
• To assess the impact of a formulated extruded diet on psittacine health and reproductive success.
• To compare the efficacy of seed-based versus formulated diets in captive psittacines.

Main Methods:

• A study was conducted feeding eight psittacine species a formulated extruded diet mixed with fruits and vegetables for one year.
• Reproductive success, specifically fledging percentage, was compared to previous years where birds were fed seeds, fruits, and vegetables.
• Nutritional content of commercial seed mixes and formulated diets was analyzed.

Main Results:

• Psittacines fed the formulated extruded diet showed a significant increase in fledging percentage to 90%, up from 66% on seed-based diets.
• The extruded diet was well-accepted when offered with fruits and vegetables.
• Commercial seed mixes are high in fat, leading to obesity, and lack essential nutrients, causing deficiencies.

Conclusions:

• Traditional seed-based diets are nutritionally inadequate for psittacines, leading to deficiencies and poor reproductive outcomes.
• Formulated extruded diets, when offered with fruits and vegetables, can meet psittacine nutritional requirements and improve health and breeding success.
• Not all commercial formulated diets are nutritionally equivalent; careful analysis is required.