Palatability of bucker ensiled willow as a winter diet item for browsing herbivores

Browsing herbivores in zoological institutions may be severely limited in the amount of natural browse offered, especially in winter months, with implications for gastrointestinal and overall animal health. A large quantity of freshly cut willow browse (~6100 kg) was ensiled in June 2010 after chipping the product into a lined 15’ x 6’ x 6’ container with molasses (~4% of...

Evaluation of season of harvest and water addition on forage quality of willow (Salix caroliniana) processed for silage at Disney’s Animal Kingdom

The objective of this study was to evaluate two seasons of harvest and water addition at the time of ensiling on silage quality of Carolina willow (Salix caroliniana). If successful, willow silage could be used as a supplement during the winter months for some browse-consuming animals at Disney’s Animal Kingdom. The experiment consisted of two harvest seasons and two moisture...

Effect of additives on ensiling of willow leaves and twigs

According to Hoffman, ruminants can be classified as browsers (“concentrate selectors”), intermediate feeders, and grazers. Compared to grazers, browsers have different nutritional requirements to meet their specific digestive physiology needs. In general, browse may contain higher amounts of secondary plant compounds and lower fiber concentrations than many grasses. In Rotterdam Zoo, browse often consists of willow leaves and branches. However,...