4.5 Article

Pumpkin and garden cress seed oils as feed additives to improve the physiological and productive traits of laying hens

Journal

ITALIAN JOURNAL OF ANIMAL SCIENCE
Volume 21, Issue 1, Pages 1047-1057

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/1828051X.2022.2090288

Keywords

Antioxidant capacity; egg production quality; essential fatty acids; immunity; nutritive value

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This study found that adding pumpkin seed oil and garden cress seed oil as feed additives can significantly improve the physiological functions and productive traits of laying hens, including biochemical parameters, blood antioxidant parameters, immunological response parameters, and fatty acids in egg yolk.
This study aimed to investigate the effects of adding pumpkin (PK) and garden cress (GC) seed oils to laying diets, as nutraceuticals, on the physiological and productive performance of layers. A total of 360 hens, at 24 weeks of age, were randomly and equally assigned into four groups of nine replicates each (10 birds/replicate). The 1(st) group was fed the basal diet and was served as a control. The 2(nd), 3(rd), and 4(th) groups were fed diets supplemented with 0.5% PK oil, 0.5% GC oil, and 0.25% PK oil + 0.25% GC oil, respectively. The experiment lasted eight weeks. According to the results, PK (0.5%) and GC (0.5%) seed oils, as well as their combination (PK 0.25% + CG 0.25%), had significant positive effects (p <= 0.05) on several biochemical parameters, such as cholesterol and triglycerides, as well as some productive traits, such as egg production and egg mass of laying hens. They also positively affected (p <= 0.05) birds' blood antioxidant parameters, such as superoxide dismutase (SOD) and Malondialdehyde (MDA), and improved (p <= 0.05) some immunological response parameters, such as globulin, lymphocytes, and heterophils. Additionally, they enhanced (p <= 0.05) egg yolk fatty acids, such as oleic and linoleic. Therefore, we recommend adding PK and GC seed oils to laying diets as natural feed additives, either separately (0.5%) or in combination (0.25%+0.25%), to improve several physiological functions and productive traits of birds.

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