Results 81 to 90 of about 149,961 (158)
A plea to implement robustness into a breeding goal: poultry as an example [PDF]
, 2008 The combination of breeding for increased production and the intensification of housing conditions have resulted in increased occurrence of behavioral, physiological, and immunological disorders.
Brom, F.W.A. +7 more
core +1 more source
Run management for organic layers [PDF]
, 2012 Layer runs are often bare and loaded with nutrients and with infectious stages of helminths. Various management strategies are recommended in order to better distribute the hens in the run, thereby preventing local accumulation of droppings and related ...
Amsler, Zivile +5 more
core +1 more source
Italian Journal of Animal Science, 2020 This study was conducted to determine the effects of diet supplementation of laying hens with Ligustrum lucidum (LL) on egg production, egg quality and caecal microbiota. A total of 360 72-week-old Hy-Line Brown laying hens were divided into three groups
Xiaochen Chen +3 more
doaj +1 more source
Characteristics of fecal mycobiota and bacteriota in laying hens during different laying periods [PDF]
Mycobiota represents an important component of the gut microbiome in poultry and plays important roles in host nutrition and metabolism. However, the understanding of gut mycobiota in laying hens during the production cycle is limited.
Elsheikha, Hany M. +11 more
core +1 more source
The Effects of Altering Maintenance Diet on Food Preferences of Hens [PDF]
, 2013 The preferences of six hens for wheat, puffed wheat and pellets were investigated using Variable Interval 60-s Variable Interval 60-s dependent concurrent schedules of reinforcement with a 2-s change-over delay and 2.5-s access to wheat on the left key ...
Schroeder, Laura Claire
core
Poultry ScienceCurrently, the cost of poultry feed accounts for more than 70 % of the total cost of poultry production. Therefore, it is crucial to find appropriate strategies to reduce feed cost and improve feed efficiency in livestock genetic improvement programs ...
Zhouyang Gao +9 more
doaj +1 more source
Comparison of two Different Breeding Systems of Laying Hens in Relation to Egg Damage and Dirty
Scientific Papers Animal Science and Biotechnologies, 2023 The aim of work was to follow up and statistically evaluate the damage and dirty eggs and egg weight, depending on two different breeding systems and different ages of laying hens.
Mária Angelovičová +2 more
doaj
Journal of the Indonesian Tropical Animal Agriculture, 2017 The objective of this study was to obtain enriched eggs with low cholesterol content. Forty-eight laying hens (strain Dekalb Warren) aged 72 weeks were distributed into six treatment groups as follows: 1) Laying hens fed diet without Sauropus androgynus ...
U. Santoso, Y. Fenita, E. Sulistyowati
doaj +1 more source
The effect of altering maintenance diet on demand for reinforcers. [PDF]
, 2011 Six hens’ preferences between whole grain wheat, commercial laying pellets and puffed wheat were assessed using a free-access procedure. Wheat was found to be the preferred food of three hens, pellets were preferred by one, puffed wheat was found to be ...
Jackson, Surrey Merryn Kate
core
Influences of maternal care on chicken welfare [PDF]
, 2016 This review was funded by a BBSRC Future Leader Fellowship to Joanne Edgar.In domestic chickens, the provision of maternal care strongly influences the behavioural development of chicks.
Suzanne Held +8 more
core +1 more source