Physical Health Problems and Environmental Challenges Influence Balancing Behaviour in Laying Hens

With rising public concern for animal welfare, many major food chains and restaurants are changing their policies, strictly buying their eggs from non-cage producers. However, with the additional space in these cage-free systems to perform natural behaviours and movements comes the risk of injury. We evaluated the ability to maintain balance in adult laying hens with health problems (footpad dermatitis, keel damage, poor wing feather cover; n = 15) using a series of environmental challenges and compared such abilities with those of healthy birds (n = 5). Environmental challenges consisted of visual and spatial constraints, created using a head mask, perch obstacles, and static and swaying perch states. We hypothesized that perch movement, environmental challenges, and diminished physical health would negatively impact perching performance demonstrated as balance (as measured by time spent on perch and by number of falls of the perch) and would require more exaggerated correctional movements.We measured perching stability whereby each bird underwent eight 30-second trials on a static and swaying perch: with and without disrupted vision (head mask), with and without space limitations (obstacles) and combinations thereof. Video recordings (600 Hz) and a three-axis accelerometer/gyroscope (100 Hz) were used to measure the number of jumps/falls, latencies to leave the perch, as well as magnitude and direction of both linear and rotational balance-correcting movements. Laying hens with and without physical health problems, in both challenged and unchallenged environments, managed to perch and remain off the ground. We attribute this capacity to our training of the birds. Environmental challenges and physical state had an effect on the use of accelerations and rotations to stabilize themselves on a perch. Birds with physical health problems performed a higher frequency of rotational corrections to keep the body centered over the perch, whereas, for both health categories, environmental challenges required more intense and variable movement corrections. Collectively, these results provide novel empirical support for the effectiveness of training, and highlight that overcrowding, visual constraints, and poor physical health all reduce perching performance.

CAM-4, a portable warning device for organophosphate hazardous material spills /

Mode of access: Internet.

Histoires : pour piano /

La meneuse de tortues d'or -- Le petit âne blamnc -- Le vieux mendiant -- a giddy girl -- Dans la maison triste -- Le palais abandonné -- Bajo la mesa -- La cage de cristal -- La marchande d'eau fraîche -- Le cortège de Balkis.

Médecine des oiseaux; causes, nature et traitement de leurs maladies.

Mode of access: Internet.

Canaries : their care and breeding /

Includes indexes

The sin of Monsieur Pettipon, and other humorous tales,

The sin of Monsieur Pettipon.--Mr. Pottle and the South-Sea cannibals.--Mr. Pottle and culture.--Mr. Pottle and the one man dog.--Mr. Pottle and pageantry.--The cage man.--Where is the Tropic of Capricorn?--Mr. Braddy's bottle.--Gretna Greenhorns.--Terrible Epps.--Honor among sportsmen.--The $25,000 jaw.

The dramatic works and poems of James Shirley, now first collected : with notes by the late William Gifford, esq., and additional notes, and some account of Shirley and his writings /

v. 1. Some account of Shirley and his writings. Commendatory verses on Shirley. Love tricks, or, The school of complement. The maid's revenge. The brothers. The witty fair one. The wedding.--v. 2. The grateful servant. The traitor. Love's cruelty. Love in a maze. The bird in a cage. Hyde park.--v. 3. The ball. The young admiral. The gamester. The example. The opportunity. The coronation.--v. 4. The lady of pleasure. The royal master. The duke's mistress. The doubtful heir. St. Patrick for Ireland. The constant maid. The humorous courtier.--v. 5. The gentleman of Venice. The politician. The imposture. The cardinal. The sisters. The court secret.--v. 6. Honoria and Mammon. Chabot, admiral of France. The Arcadia. The triumph of peace. A contention for honour and riches. The triumph of beauty. Cupid and death. The contention of Ajax and Ulysses for the armour of Achilles. Poems.

The Lancashire canary; how to breed and rear it.

Mode of access: Internet.

The diseases of caged birds, their causes, symptoms & treatment.

Mode of access: Internet.

Origine e progressi delle belle lettere italiane; corso critico- esegetico. Volume unico dall'epoca del risorgimento a tutto il secolo xv.

Cage copy imperfect: p. 225-879 wanting.

School of Nursing Class of 1976

Top Row: Peggy Alford, Anne Allen, Barbara Amann, Joann Baker, Elizabeth Bando, Sara Barnes, Mary Barz, Anne Bauer, Patricia Baxter, Gwendolyn Beaudette, Nancy Bidigare, Marian Bier, Susan Blaszczyk, Jacqueline bolin, Anne Bostwick, Heather Brendel, Theresa Brisker, Rosalyn Cage, Jeanne Calhoun

Row 2: Karen Caputo, Carolyn Carpenter, Laura Lewellen, Catherine Pearson, Pamela Carr, Lisa Clark

Row 3: Sarah Cleland, Kathy Collar, Ann Connors, Marian Coppo, Martha Coppo, Debra Wirth, Kathleen Coughlin, Mayble Craig, Jennifer Crittenden, Linda Dean, Ann Dika

Row 4: Shira Doneson, Valerie Dray, Lee Duffey, Mary Dunn, Nancy Edwards, Mildred Jett, Patricia Johnson, Jan Walters, Karen Dimitroff, Debra Walton, Moira Stein, Madi Ehrenreich, Paula Elliott, Claudia Evans, Jolaync Farrell, Karen Fierke

Row 5: Debra Finch, Nadine Furlong, Susan Gamerman, Anita Gardocki, Marcia Gerpheide, Roberta Gies, Deborah Glotzhober, Marlene Golabeck, Janet Goldberg, Rene Green, Diana Greer, Susan Gross, Vivian Hall, Jill Hallead

Row 6: Sharon Hamlett, Tamara Hanson, Jane Harper, Jesusa Heilig, Steinunn Hermannsson, Susan Hicks, Karen Hillebrand, Jomatia Hoff, Michelle Howey, Holly Howieson, Sandra Hubar, Kathleen Hughes, Shirley Jvery, Laura Johnson, Susan Johnson, Shirley Jones, Judith Kellermier, Lynda Kitchen, Susan Kleinbeck

Row 7: Nanette Kotz, Kathleen Kroh, Judith Krohn, Catherine Lahti, Mary Lange, Patti Larson, Susan Leach, Rebecca Linn, Lacy Loomis, Francene Lundy, Sue Lymperis, Robyn Main, Patricia McCleary, Theresa McGowan, Elizabeth Messiter, Mary Miller, Nancy Moffatt, Catherine Munn, Karen Munson

Row 8: Virginia Newman, Laura Novak, Thomas O'Connell, Julie O'Connor, Kaathleen O'Hara, Kimberly O'Loughlin, Karen Olsen, Marcy Ouellette, Gail Park, Georgiana Parsell, Mary Patchak, Linda Pearsall, Kathleen Poage, Shelly Ponte, Thomas Parter, Marilyn Pratt, Karen Prince, Kathryn Procter, Rebecca Raymond

Row 9: Jill remter, Cheryl Ricca, Brenda Robinson, Karen Rollins, Lisa Root, Audrey Ross, Barbara Rutherford, Linda Rykwalder, Margaret Sampson, Sherril Santo, Jeanne Scheer, Kathy Schlichter, Nancy Schuman, Debra Sihtala, Michele Smit, Donna Smith, Bonnic Smrcka, Janine Speck, Elizabeth Stainsby

Row 10: Grace Steinaway, Jennifer Stinson, Sally Stone, Anne Sullivan, Barbara Tonak, Linda Towers, Cindy Tremblay, Gregory Trowbridge, Sandra Tucker, Debbie Ullrich, Lee Ann Van Houten, Pamela Waggener, Martha Walker, Michele Wenderski, Catherine West, Harriet Wilkinson, Diane Willis, Jan Winslow, Karen Wismer

The American bird-keeper's manual; or, Directions for the proper management of American and foreign singing birds. With particular instructions for the breeding of canary birds, and the proper treatment of their young. Together with some remarks upon the diseases to which birds are liable ...

Mode of access: Internet.

Design Expressions and Dynamic Evaluation of CFST Bridges Subjected to Seismic Hazards

Thesis (Ph.D.)--University of Washington, 2016-06

Learning, odour preference and flower foraging in moths

Floral volatiles play a major role in plant-insect communication. We examined the influence of two volatiles, phenylacetaldehyde and a-pinene, on the innate and learnt foraging behaviour of the moth Helicoverpa armigera. In dual-choice wind tunnel tests, adult moths flew upwind towards both volatiles, with a preference for phenylacetaldehyde. When exposure to either of these volatiles was paired with a feeding stimulus (sucrose), all moths preferred the learnt odour in the preference test. This change in preference was not seen when moths were exposed to the odour without a feeding stimulus. The learnt preference for the odour was reduced when moths were left unfed for 24 h before the preference test. We tested whether moths could discriminate between flowers that differed in a single volatile component. Moths were trained to feed on flowers that were odour-enhanced using either phenylacetaldehyde or a-pinene. Choice tests were then carried out in an outdoor flight cage, using flowers enhanced with either volatile. Moths showed a significant preference for the flower type on which they were trained. Moths that were conditioned on flowers that were not odour-enhanced showed no preference for either of the odour-enhanced flower types. The results imply that moths may be discriminating among odour profiles of individual flowers from the same species. We discuss this behaviour within the context of nectar foraging in moths and odour signalling by flowering plants.

Wolbachia-induced cytoplasmic incompatibility as a means for insect pest population control

Biological control is the purposeful introduction of parasites, predators, and pathogens to reduce or suppress pest populations. Wolbachia are inherited bacteria of arthropods that have recently attracted attention for their potential as new biocontrol agents. Wolbachia manipulate host reproduction by using several strategies, one of which is cytoplasmic incompatibility (CI) [Stouthamer, R., Breeuwer, J. A. J. & Hurst, G. D. D. (1999) Annu. Rev. Microbiol. 53,71-102]. We established Wolbachia-infected lines of the medfly Ceratitis capitata using the infected cherry fruit fly Rhagoletis cerasi as donor. Wolbachia induced complete CI in the novel host. Laboratory cage populations were completely suppressed by single releases of infected males, suggesting that Wolbachia-induced CI could be used as a novel environmentally friendly tool for the control of medfly populations. The results also encourage the introduction of Wolbachia into pest and vector species of economic and hygenic relevance to suppress or modify natural populations.