Results 81 to 90 of about 6,664 (264)
Journal of Agricultural Engineering, 2017 Many factors present in eggs’ transportation from incubator to growing confinements can damage their integrity and, consequently, the results of the incubation. This study aimed to evaluate whether the intensity and duration of exposures of hatching eggs
Ana Carolina Donofre +3 more
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The Effect of Broiler Breeder Strain and Parent Flock Age on Hatchability and Fertile Hatchability
International Journal of Poultry Science, 2010 The effect of genetic strain (Ross 308; Cobb 500) and parent flock age (Ross at 32 and 36 weeks; Cobb at 26 and 44 weeks of age) on hatchability, fertile hatchability, Egg Weight Loss (EWL) and egg break out analysis were examined. At each flock age, 300 eggs from each treatment group were incubated.
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Some Genetic Aspects of Hatchability
Poultry Science, 1934 Abstract THE genetic aspects of hatchability and the knowledge concerning them have been discussed recently by Jull (1932). It has been established that cross-breeding often increases hatchability and that inbreeding often decreases it. These results of cross-breeding and inbreeding have been attributed chiefly to the different degrees of ...
Theodore C. Byerly +2 more
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Advanced Science, EarlyView.This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen +7 more
wiley +1 more source
Advanced Science, EarlyView.Soybean employs its circadian clock, governed by GmCCA1, to rhythmically defend against soybean cyst nematodes. The pathogen retaliates by secreting the effector Hg4E02, which hijacks the clock to suppress defense and co‐opt the host's translation machinery for nutrient acquisition.
Xingwei Wang +21 more
wiley +1 more source
Veterinary Sciences, 2018 Opuntia ficus-indica (L.) Mill. is a xerophylous plant that originated in tropical and subtropical America. This plant is popularly known in Brazil as “palma forrageira” (cactus pear) and plays a fundamental role in animal nutrition, mainly ...
Carolina Santos +7 more
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Advanced Science, EarlyView.Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang +11 more
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Czech Journal of Animal Science, 2018 This study estimated the genetic parameters for reproductive and performance traits and determined which ones can be used as selection criteria for egg production in laying hens using the Bayesian inference.
Jaqueline O. Rosa +8 more
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Effect of Mercurial Ointment on Hatchability
Poultry Science, 1933 Abstract A CONVENIENT method of ridding hens of body lice is the application of mercurial or blue ointment, a method advocated by Pearl, Surface, and Curtis (1915). The ointment is applied by rubbing three pieces, about the size of a small pea, one underneath each wing and the vent.
Alan Deakin, George Robertson
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Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution
Advanced Science, EarlyView.Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley +1 more source