Cannibalism Control Treatments and Egg Shell Thickness
نویسندگان
چکیده
منابع مشابه
The Avian Egg: Water Vapor Conductance, Shell Thickness, and Functional Pore Area
Gas exchange in the avian embryo has been shown to be dependent on, and limited by, the diffusive properties of gases across the resistance offered by the shell and shell membranes ( Wangensteen and Rahn 1970-71). For simplicity, we shall use the term “shell’ to denote the entire barrier to diffusion between the interior of the egg and the environment. It has also been shown that under normal ...
متن کاملUtilizing Optical Coherence Tomography in the Nondestructive and Noncontact Measurement of Egg Shell Thickness
The goal of this study was to measure the thickness of egg shells without any contact and by utilizing a nondestructive method that sends infrared light beam on the egg. We obtain measurement resolutions on the order of 7 μm up to a penetration depth of 1.7 mm from the actual surface of the egg shell. The measurement results we obtained show that optical coherence tomography can be used to accu...
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A cannibal has to weigh the benefits of the consumption and removal of competing conspecifics against the potential loss of fitness through filial cannibalism. We examined the role of the presence of conspecific females in informing adaptive cannibalism decisions. Females of the hemipteran bug Geocoris pallens express low egg cannibalism when alone but become much more cannibalistic in the pres...
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T-2 toxin has been reported to cause severe oral lesions and neural disturbances in young broiler chickens. T-2 toxin, when added at a level of 20 mug per g of feed, caused oral lesions but no abnormal neural disturbances in young broiler chickens. T-2 toxin, when added at a level of 20 mug per g of feed, caused oral lesions but no abnormal neural symptoms in laying hens. T-2 toxin had no effec...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1966
ISSN: 0032-5791
DOI: 10.3382/ps.0451423