Naber, 1993 – Modifying Vitamin Composition of Eggs: A Review
Egg vitamin composition is variable and dependant primarily on the vitamin content of the diet of laying and breeding hens. …
Egg vitamin composition is variable and dependant primarily on the vitamin content of the diet of laying and breeding hens. …
The dietary essential PUFA docosahexaenoic acid [DHA; 22:6(n-3)] is a critical contributor to cell structure and function in the nervous …
Docosahexaenoic acid (DHA) is essential for the growth and functional development of the brain in infants. DHA is also required …
Lutein is one of the most widely found carotenoids distributed in fruits and vegetables frequently consumed. Its presence in human …
The HealthFocus National Study of Public Attitudes and Actions Toward Healthy Foods is conducted every two years to identify current …
The present paper evaluates the most recent randomized controlled trials assessing the efficacy of n-3 LCPUFA supplementation (with or without …
Background: A reduction in dietary cholesterol is recommended to prevent cardiovascular disease (CVD). Although eggs are important sources of cholesterol …
With advancing age there is a progressive decline in immune responses although this is not inevitable. The impairment in immunocompetence …
For years, eggs have been held up as a powerhouse of nutrition. This reputation has been due to eggs’ exceptional …
1. Sixty-three laying hens were collected from 5 commercial farms experiencing outbreaks of cannibalism. It is known that cannibalistic behaviour varies strongly between hybrids and between individuals of the same hybrid. The aim of this study was to test specific hypotheses about the causation of cannibalism by comparing matched individuals varying in their cannibalistic behaviour. …
1. Mortality and causes of death were recorded over two trials with 13 045 Lohmann Selected Leghorn (LSL, white layer strain) and 4410 Lohmann Brown (LB) laying hens kept in furnished small group housing systems and furnished cages. In trial 1, hens were housed from weeks 19 to 71 (LSL) and 17 to 69 (LB). …
The distribution of cannibalism cases in a flock of 19,776 Babcock White Leghorns was monitored from 21 to 54 wk of age. The hens were kept in a single floor house consisting of four banks of two-deck stairstep cages. Each of the 4,944 cages held four hens at a density of 152 cm2 (60 inches2) …
We examined effects of being moved and mixed with strangers on the incidence of aggression and cannibalism in caged White Leghorn hens with intact beaks. We predicted that mixing of strangers would increase rates of aggression and cannibalism. Hens were reared in 16 stable groups of four birds together since hatch. At 18 months of …
In young pullets, long bones elongate by endochondral growth. Growth plate chondrocytes proliferate, then hypertrophy, and are replaced by osteoblasts that form a network of trabecular bone. This bone is gradually resorbed by osteoclasts as the bone lengthens. Long bones widen, and flat bones are formed, by intramembranous ossification in which cortical bone formation by …
Cage layer fatigue was first noticed after laying hens began to be housed in cages in the mid-20th century. Hens producing eggs at a high rate were most susceptible to the disease. Early research revealed that cage layer fatigue was associated with osteoporosis and bone brittleness. Severe osteoporosis leads to spontaneous bone fractures commonly in …
1. Tibia and humerus breaking strength of Lohmann Silver hybrids kept in conventional cages, furnished cages and an aviary with …
Limited opportunity for movement and load-bearing exercise for conventionally caged laying hens leads to bone loss and increased susceptibility to …
1. As a baseline study of the nature and incidence of keel deformities in laying hens, keel condition was examined in three different strains of hen from a total of 4 different caged environments (two commercial farms and two experimental farms). Incidence of keel deformity on farms in end of lay hens ranged from 2.6 …