Results 141 to 150 of about 2,222 (233)
Photorefractoriness in turkey breeder hens is affected by age and season
Experiments were conducted to determine if the incidence or temporal characteristics of photorefractoriness (PR) in turkey hens were influenced by age or season. Age effects on PR were determined by comparing characteristics of PR in the same hens through two consecutive lay periods. Seasonal influences on PR were evaluated by comparing characteristics
openaire +2 more sources
Feeding 600, 900, or 1200 μm corn particle sizes to early‐phase laying hens maintained stable production performance, egg quality, egg size, and fecal scores. Although average daily feed intake and yolk color exhibited a quadratic response from 24 to 30 weeks, the findings confirm that 1200 μm coarse corn is practically suitable for dietary inclusion ...
Kanon Das, Joohyun Ha, In Ho Kim
wiley +1 more source
ABSTRACT Background and Objectives Ethiopia has a large chicken population, but its economic contribution is limited by disease challenges, especially coccidiosis. Despite coccidiosis's economic and health impacts, there is a notable gap in detailed knowledge regarding the predominant Eimeria species, associated intestinal lesions, and distribution ...
Yacob Bekele +3 more
wiley +1 more source
Effect of light and feeding management on sexual maturity and productivity of broiler breeder hens [PDF]
Six experiments were conducted utilizing broiler breeder females in both windowed and windowless houses to assess or determine: 1) the effect on sexual maturity and subsequent egg production produced by light intensity changes during photostimulation; 2)
Idris, Abbaker Ali
core +1 more source
Suspected lymphoid leukosis visceral lymphoma with intestinal and ovarian involvement in a chicken
Abstract An adult hen from a small poultry flock was submitted for diagnostic investigation because of nonspecific clinical disease and suspected neoplasia. At necropsy, the bird had ascites, splenomegaly, severe intestinal adhesions, nodular intestinal lesions and ovarian masses. Histopathology revealed extensive infiltration of the intestinal mucosa,
Thomas Salles Dias +5 more
wiley +1 more source
Effect of Dietary Phosphorus and Enzyme Levels on Reproduction in Turkey Breeder Hens [PDF]
Previous work has demonstrated that the P requirement for turkey breeder hens has not been adequately determined. It is becoming apparent that there are distinctive P requirements of turkey breeder hens compared to poults and growing birds.
Godwin, Jennifer Leigh
core
Social information about others' affective states in a human‐altered world
Faced with anthropogenic change, animals now encounter challenges different from their evolutionary past. To cope with such challenges, animals may use social information about others' affective states to guide their decisions. Considering affective states of wild animals could have important implications for animal welfare and wildlife conservation ...
Luca G. Hahn +4 more
wiley +1 more source
A new line of selectively bred mice, cHAPxHDID, shows high alcohol intake and blood alcohol levels that cause anhedonia during alcohol consumption. This quickly resolves in abstinence, and behavior indicative of depression emerges 6 d into abstinence.
Garrett A. Winkler, Nicholas J. Grahame
wiley +1 more source
Barley HvBODYGUARD1 controls cuticular specialisations regulated by SHINE transcription factors
Cuticle defects result from defective HvBDG1 alleles. Summary Land plants secrete a protective outer cuticular layer with diverse functions. Barley (Hordeum vulgare L.) develops two cuticular specialisations: the β‐diketone rich wax bloom on vegetative tissues and an adherent grain surface which sticks to the hulls, leading to barley's distinctive ...
Trisha McAllister +19 more
wiley +1 more source
: The broiler breeder industry is facing a problem with fertility, hatchability, and the number of broiler breeder eggs produced per hen. The supplementation of trace minerals such as zinc, manganese, and copper in broiler breeder diets has been ...
Cassidy A. Morris +8 more
doaj +1 more source

