Results 11 to 20 of about 6,123 (278)

Crossed beaks in a local Swiss chicken breed [PDF]

BMC Veterinary Research, 2018
Background Crossed beaks have been reported to occur in Appenzeller Barthuhn, a local Swiss chicken breed. The assumed causes for this beak deformity which are also seen in other bird species including domestic chickens, range from environmental ...
Sara Joller, Flurina Bertschinger, Erwin Kump, Astrid Spiri, Alois von Rotz, Daniela Schweizer-Gorgas, Cord Drögemüller, Christine Flury   +7 more
doaj   +4 more sources

Does the shape of coleoid beaks bear an ecological signal?

, 2022
International audienceCephalopod beaks provide critical information in understanding cephalopod biology, their ecology and their role in marine ecosystems.
Kruta, Isabelle, Herrel, Anthony, Zaharias, Paul, Fernandez, Vincent, Cherel, Yves, Roscian, Marjorie, Cornette, Raphael, Rouget, Isabelle   +7 more
core   +6 more sources

Cephalopod species identification using integrated analysis of machine learning and deep learning approaches [PDF]

PeerJ, 2021
Background Despite the high commercial fisheries value and ecological importance as prey item for higher marine predators, very limited taxonomic work has been done on cephalopods in Malaysia.
Hui Yuan Tan, Zhi Yun Goh, Kar-Hoe Loh, Amy Yee-Hui Then, Hasmahzaiti Omar, Siow-Wee Chang   +5 more
doaj   +2 more sources

Creation and Maintenance Processes of Malacological Collections of Cephalopod Beaks [PDF]

, 2022
The cephalopods have in their mouth a pair of chitinous beaks used to cut their prey. The identification of these beaks is diagnostic for species and considered a difficult task, although very useful in the identification of species and their ecological ...
Lopes, Vitor Estanislau de Almeida Souza, Vaske Junior, Teodoro   +1 more
core   +1 more source

Beaked whales [PDF]

Current Biology, 2014
Peer ...
Madsen, Peter, Aguilar de Soto, Natacha, Tyack, Peter Lloyd, Johnson, Mark   +3 more
openaire   +4 more sources

Welfare and Performance of Three Turkey Breeds—Comparison between Infrared Beak Treatment and Natural Beak Abrasion by Pecking on a Screed Grinding Wheel

Animals, 2021
Feather pecking and cannibalism are behavioral disorders that cause animal-welfare-relevant and economic problems. To mitigate these problems, the beaks of conventionally reared turkeys are usually already trimmed in the hatcheries.
Stefanie Grün, Klaus Damme, Matthias Müller, Marie Franziska Sommer, Paul Schmidt, Michael Erhard, Shana Bergmann   +6 more
doaj   +1 more source

Phenotype characterization of crossed beaks in Beijing-You chickens based on morphological observation

Poultry Science, 2020
The prevalence of crossed beaks ranging from 0.2 to 7.4% was documented in at least 12 chicken strains. Previous studies focused largely on candidate molecules, whereas the morphological observation was missing.
Lei Shi, Yunlei Li, Hao Bai, Dongli Li, Panlin Wang, Linlin Jiang, Jing Fan, Pingzhuang Ge, Aixin Ni, Yuanmei Wang, Shixiong Bian, Yunhe Zong, Adamu Mani Isa, Hailai Hagos Tesfay, Hui Ma, Yanzhang Gong, Yanyan Sun, Jilan Chen   +17 more
doaj   +1 more source

Specialized beak blunting feeders and their potential as an alternative to current beak treatment methods in leghorn pullets

Journal of Applied Poultry Research, 2022
SUMMARY: There is pressure to ban the practice of using beak treatment in laying hens and with this comes the need to find viable alternatives.
S. Struthers, K. Buchynski, J. Chew, S. Gomis, E. Herwig, T. Shynkaruk, K. Schwean-Lardner   +6 more
doaj   +1 more source

Identification of genes related to beak deformity of chickens using digital gene expression profiling. [PDF]

PLoS ONE, 2014
Frequencies of up to 3% of beak deformity (normally a crossed beak) occur in some indigenous chickens in China, such as and Beijing-You. Chickens with deformed beaks have reduced feed intake, growth rate, and abnormal behaviors. Beak deformity represents
Hao Bai, Jing Zhu, Yanyan Sun, Ranran Liu, Nian Liu, Dongli Li, Jie Wen, Jilan Chen   +7 more
doaj   +1 more source

Analysis of DNA Methylation Profiles in Mandibular Condyle of Chicks With Crossed Beaks Using Whole-Genome Bisulfite Sequencing

Frontiers in Genetics, 2021
Crossed beaks have been observed in at least 12 chicken strains around the world, which severely impairs their growth and welfare. To explore the intrinsic factor causing crossed beaks, this study measured the length of bilateral mandibular ramus of ...
Lei Shi, Hao Bai, Yunlei Li, Jingwei Yuan, Panlin Wang, Yuanmei Wang, Aixin Ni, Linlin Jiang, Pingzhuang Ge, Shixiong Bian, Yunhe Zong, Adamu Mani Isa, Hailai Hagos Tesfay, Fujian Yang, Hui Ma, Yanyan Sun, Jilan Chen   +16 more
doaj   +1 more source