Advisor(s) - Committee Chair
Herbert Shadowen, Blaine Ferrell, Elmer Gray
Department of Biology
Master of Science
Ground meal and 4 sizes of pelleted feeds (3/16, ¼, 3/8 and ½ inch diameters) were offered to captive Starlings (Sturnus vulgaris, Linnaeus) to determine the minimum feed size they were unable to consume in significant amounts. The ground meal, 3/8 and ½ inch diameter pellets substantially decreased feed consumption compared with 3/16 and ¼ inch diameter pellets. Additionally, ½ inch pellets were consumed substantially less than ground meal or 3/8 inch pellets. Supplemental feed was require to prevent mortality among Starlings offered only ½ inch pellets.
Two pellet sizes, the 3/16 inch pellet which was readily consumed by Starlings and the 3/8 inch pellet which was less preferred by the birds, were selected for tests with free ranging Starlings. Field tests comparing consumption of these 2 pellet sizes were conducted in southcentral Kentucky during January and February 1982. Starlings consumed significantly (P<0.01) lesser amounts of 3/8 inch pellets than 3/16 inch pellets during this test.
It appears that feeding both ground meal and 3/8 inch diameter pelleted feeds to livestock is effective in reducing livestock feed losses to depredating Starling, and feeding larger-sized feeds such as ½ inch diameter pellets may further reduce losses.
Animal Sciences | Biology | Life Sciences | Poultry or Avian Science
Twedt, Daniel, "The Influence of Livestock Feed Size on Feed Consumption by Starlings (Sturnus Vulgaris)" (1982). Masters Theses & Specialist Projects. Paper 1824.