Diferentes fontes e níveis de selênio sobre a imunidade humoral de frangos de corte

Non-ruminants Full-length research article Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens ABSTRACT-An experiment was conducted based on a completely randomized design with 500 Ross 308 broiler chickens to investigate the effect of three different sources of selenium on performance and characteristics of immune system. Chickens were arranged in 10 treatments and five repetitions (10 chickens for each repetition). Ten treatments of experimental diet were considered in the study, including a basal diet (control); 0.5, 0.8, and 1.2 mg nano-selenium + basal diet (three treatments); 0.5, 0.8, 1.2 mg selenomethionine + basal diet; and 65, 80, and 100 mg vitamin E + selenium + basal diet. Findings suggested that adding selenomethionine (1.2 mg) to the basal diet resulted in a significant effect on feed conversion ratio and weight of broilers. In fact, weight and bursa of Fabricius were significantly under influence of the diets containing nano-selenium. Moreover, a significant difference was observed in the antibodies produced against Newcastle and influenza as well as the total immunoglobin and IgG produced against sheep red blood cell at two stages in the group treated with nanoselenium. Finally, results indicated that nano-selenium can better improve performance and immune system of broilers compared with diets containing selenomethionine and vitamin E.

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Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens

Shabani

Fakhraei

Yarahmadi

et al. 2019

R. Bras. Zootec.

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Selenium in poultry nutrition: a review

Suchý¹,

Straková²,

Herzig³

2014

CZECH J ANIM SCI

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Selenium has been known for two centuries and its biological activities have been studied for nearly a hundred years, however the problem of Se deficit has still been persisting both in humans and animals. The cause of Se deficit in animals may be low Se level in soil. This mainly applies to cattle and sheep with their direct link to soil via roughage. The risk of Se deficit in pigs and poultry is lower due to lower dependence on soil Se level in the region and Se fortification in feed mixes. The present research focuses on the effects of Se on meat and egg quality, antioxidant activity of Se, effects on fatty acid levels, activity of glutathione-peroxidase, or the effect of Se on the immune system. Ensuring natural Se supply in human nutrition by food of animal origin, mainly poultry meat and eggs (the "functional foods"), is another area to which extensive attention has recently been paid.

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Effect of dietary nano α-tocopherol acetate plus selenium on productivity, immune status, intestinal morphometry and carcass traits of broiler chicken

Abdulameer

Ajafar²,

Rabee³

2023

Rev. colomb. cienc. pecu.

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Background: Nano-vitamins and minerals are used in animal nutrition to improve performance and health of broiler chickens as a potential alternative to antibiotic growth promoters. Objective: To evaluate the effect of several levels of a dietary nano α-tocopherol acetate plus selenium compound (NTS) on growth, intestinal histomorphometry, carcass traits, and immune status of broiler chickens. Methods: A total of 240 one-day-old Ross 308 chickens were randomly divided into four groups, each one with three pens (n=20 per pen). Four doses of nano α-tocopherol acetate and selenium (0, 5, 7, and 10 mg/kg) were included in the basal diet for 42 days. Results: Final body weight, cumulative body weight gain, and final conversion ratio significantly improved with increasing NTS levels (p<0.05). Carcass traits and weight of internal organs increased in the groups fed 7 and 10 mg/kg NTS. High NTS doses significantly increased immune vaccine titers against Newcastle disease, avian influenza virus, infectious bursal disease, and infectious bronchitis. Moreover, dietary addition of NTS improved intestinal morphometry. Conclusion: Thus, NTS (7 and 10 mg/kg) can be added to poultry rations to improve production, carcass characteristics, and immune status of broilers. Further studies are needed to evaluate NTS residues in meat.

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Diferentes fontes e níveis de selênio sobre a imunidade humoral de frangos de corte

Cited by 3 publications

References 7 publications

Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens

Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens

Selenium in poultry nutrition: a review

Effect of dietary nano α-tocopherol acetate plus selenium on productivity, immune status, intestinal morphometry and carcass traits of broiler chicken

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