Results 11 to 20 of about 1,990,934 (252)

Genetic parameter estimation and molecular foundation of chicken beak shape

Poultry Science
: The bird beak is mainly functioned as feeding and attacking, and its shape has extremely important significance for survival and reproduction. In chickens, since beak shape could lead to some disadvantages including pecking and waste of feed, it is ...
Anqi Chen, Xiaoyu Zhao, Junhui Wen, Xiurong Zhao, Gang Wang, Xinye Zhang, Xufang Ren, Yalan Zhang, Xue Cheng, Xiaofan Yu, Xiaohan Mei, Huie Wang, Menghan Guo, Xiaoyu Jiang, Guozhen Wei, Xue Wang, Runshen Jiang, Xing Guo, Zhonghua Ning, Lujiang Qu   +19 more
doaj   +4 more sources

BEAK TRIMMING BY INFRARED RADIATION OF LAYERS

Brazilian Journal of Poultry Science, 2019
This study aimed at evaluating beak-trimming methods and intensities on the performance, beak length and uniformity, and egg parameters of commercial layers.
K Pelicia, EA Garcia, TA Santos, GC Santos, JA Vieira Filho, AP Silva, J Moreira, CBV Rabello, RG Garcia   +8 more
doaj   +3 more sources

Effects of beak-treatment styles on beak morphology and production performance of layer chicks aged 0–8 weeks [PDF]

Frontiers in Veterinary Science
IntroductionDouble-infrared (IR-D) and laser energy sources (LAS) are two types of newly beak treatment equipment. Although the IR-D and LAS techniques have been developed by changing the number and type of energy sources, their effects on layer chicks ...
Lin Duan, Xiao-Yu Zhao, Er-Ying Hao, Chuan-Wen Wang, De-He Wang, Hui Chen, Zhong-Qiang Wang, Li-Jun Xu, Ke-Qian Di   +8 more
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Measurement of some body parts of muscovy duck (Carina moschata) at age 3 weeks old fed by pellet feed under an intensive farming system [PDF]

BIO Web of Conferences, 2023
This study was aimed to measure and determine the size of some body parts of the muscovy duck (Carina moschata) and their relationship with body weight.
Pratama Firmansyah Budi, Djunaidi Irfan H., Widodo Eko   +2 more
doaj   +1 more source

Beak coloration of starling (Sturnus unicolor) males depends on the length of their throat feathers [PDF]

Behavioral Ecology, 2020
Abstract Within the context of complex sexual signaling, most research has focused on exploring the associations between several signals and/or their relationships with different proxies of individual quality. However, very few studies have focused on checking whether the expression of one signal is conditioned by the expression of the ...
Manuel Azcárate-García, Magdalena Ruiz-Rodríguez, Cristina Ruiz-Castellano, Silvia Díaz-Lora, Gustavo Tomás, Manuel Martín-Vivaldi, Juan José Soler   +6 more
openaire   +3 more sources

Identification of geometric and mechanical factors predictive of bird-beak configuration in thoracic endovascular aortic repair using computational models of stent graft deployment

JVS - Vascular Science, 2022
Objective: Formation of a bird-beak configuration in thoracic endovascular aortic repair (TEVAR) has been shown to be influenced by various factors. However, the main cause of bird-beak formation remains poorly understood.
Negin Shahbazian, MASc, David A. Romero, PhD, Thomas L. Forbes, MD, Cristina H. Amon, ScD   +3 more
doaj   +1 more source

Prediction of bird-beak configuration in thoracic endovascular aortic repair preoperatively using patient-specific finite element simulations

JVS - Vascular Science, 2023
Objectives: Formation of bird-beak configuration in thoracic endovascular aortic repair (TEVAR) has been shown to be correlated with the risk of complications such as type Ia endoleaks, stent graft migration, and collapse.
Negin Shahbazian, PhD, David A. Romero, PhD, Thomas L. Forbes, MD, Cristina H. Amon, ScD   +3 more
doaj   +1 more source

Keragaman Fenotipe Kualitatif dan Kuantitatif Itik Sikumbang Jonti sebagai Plasma Nutfah di Sumatera Barat

Jurnal Ilmu Peternakan dan Veteriner Tropis, 2022
This research was aimed to identifiaty qualitative and quantitative phenotypic polymorphism of Sikumbang Jonti Duck in Kecamatan Payakumbuh Timur Kota Payakumbuh Sumatera Barat. This research used 206 Sikumbang Jonti duck that were sexual maturity (22-48
Firda Arlina, Sabrina Husmaini, R. Rhoudha, W. R. Sardi, T. Rafian   +4 more
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Morphological diversity and altitudinal differentiation of Aethopyga species

Ecology and Evolution, 2023
The morphological characteristics of birds are an important tool for studying their adaptation and evolution. The morphological evolution of a clade is not only constrained by the phylogenetic relationship, but also influenced by ecological factors and ...
Wenzhu Lu, Shimiao Shao, Lingling Zu, Xu Luo, Yubao Duan   +4 more
doaj   +1 more source

Allelopathic effects of leucaena leaves extract (Leucaena leucocephala (Lam.) de Wit) on the growth of rice (Oryza sativa L.), wrinkle duck-beak (Ischaemum rugosum Salisb), and mung bean (Vigna radiata (L.) R. Wilczek) [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2019
The experiment was conducted to study an allelopathic effects of leucaena leaves on growth of rice, wrinkle duck-beak and mung bean. The result showed that different concentrations of the leucaena extracts showed various growth patterns on the selected
Pudcharaporn Boaprem
doaj   +1 more source