Impact of lycopene and astaxanthin on hematological and immunological parameters of laying hens
IOP Conference Series : Earth and Environmental Science
; 839(37), 2021.
Article
in English
| CAB Abstracts | ID: covidwho-1973036
ABSTRACT
The aim of this study was to determine the hematological profile and specific immunity of laying hens with the addition of oil extracts of lycopene or astaxanthin to the diet. The study used High Line W36 chickens that were vaccinated against Newcastle disease, infectious bronchitis, avian rhinotracheitis and egg drop syndrome. It was found that the addition of lycopene (20 mg/kg) and astaxanthin (10 mg/kg) for 30 days did not affect the hematological profile of laying hens. Increasing the content of lycopene to 40 and 60 mg/kg or astaxanthin to 20 or 30 mg/kg of feed for 30 days reduced the number of leukocytes and hemoglobin in the blood compared to the control, which received an equivalent amount of refined sunflower oil in the diet. Lycopene and astaxanthin supplements, regardless of dose and duration of administration, did not affect the titer of antibodies to Newcastle disease, infectious bronchitis, avian rhinotracheitis, and egg drop syndrome in serum of vaccinated laying hens. The obtained data can be used to justify the optimal dose and term of feeding of lycopene or astaxanthin supplements in the development of a model of carotenoid enrichment of chicken egg yolks.
Egg Producing Animals [LL130]; Feed Additives [RR130]; Horticultural Crops [FF003]; Plant Composition [FF040]; Animal Nutrition (Physiology) [LL510]; Prion, Viral, Bacterial and Fungal Pathogens of Animals [LL821]; hens; egg production; hen feeding; feed additives; lycopene; astaxanthin; antibodies; blood; carotenes; carotenoids; egg yolk; eggs; haemoglobin; leukocytes; phytochemicals; plant oils; poultry; sunflower oil; terpenoids; Newcastle disease; egg drop syndrome; avian infectious bronchitis; fowls; Infectious bronchitis virus; birds; Gallus gallus; Gallus; Phasianidae; Galliformes; vertebrates; Chordata; animals; eukaryotes; Avian coronavirus; Gammacoronavirus; Coronavirinae; Coronaviridae; Nidovirales; positive-sense ssRNA Viruses; ssRNA Viruses; RNA Viruses; viruses; chickens; tetraterpenoids; yolk; hemoglobin; leucocytes; white blood cells; vegetable oils; domesticated birds; terpenes; avian distemper; avian pneumoencephalitis; IBV infection
Full text:
Available
Collection:
Databases of international organizations
Database:
CAB Abstracts
Type of study:
Experimental Studies
Language:
English
Journal:
IOP Conference Series : Earth and Environmental Science
Year:
2021
Document Type:
Article
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