In ovo administration of the Marek's disease vaccine in conjunction with 25-hydroxyvitamin D3 and its subsequent effects on the performance and immunity-related characteristics of Ross 708 broiler hatchlings1,2,3

被引：6

作者：

Fatemi, S. A. ^{[1
]}

Mousstaaid, A. ^{[1
]}

Williams, C. J. ^{[2
]}

Deines, J. ^{[2
]}

Poudel, S. ^{[1
]}

Poudel, I.

Elliott, K. E. C. ^{[3
]}

Walters, E. R. ^{[1
]}

Forcier, N. ^{[1
]}

Peebles, E. D. ^{[1
]}

机构：

[1] Mississippi State Univ, Dept Poultry Sci, Mississippi State, MS 39762 USA

[2] Zoetis Anim Hlth, Res Triangle Pk, NC 27703 USA

[3] USDA ARS, Poultry Res Unit, Starkville, MS 39762 USA

来源：

POULTRY SCIENCE | 2024年 / 103卷 / 01期

基金：

美国食品与农业研究所;

关键词：

25-hydroxycholecalciferol; broiler; hatchability; in ovo injection; Marek's disease vaccine; VITAMIN-D DEFICIENCY; L-ASCORBIC-ACID; POSTHATCH PERFORMANCE; INJECTED VITAMIN-D-3; GROWTH-PERFORMANCE; BONE-DEVELOPMENT; 25-HYDROXYCHOLECALCIFEROL; EXPRESSION; SUPPLEMENTATION; HATCHABILITY;

D O I：

10.1016/j.psj.2023.103199

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The combined effects of the in ovo injec-tion of commercial Marek's disease vaccine (MDV) and various levels of 25-hydroxyvitamin D3 (25OHD3) on the hatch variables, immunological measurements, and gene expression of Ross 708 hatchling broilers were inves-tigated. A total of 5 in ovo injection treatments that were applied at 18 d of incubation (doi) included: 1) non-injected (control); or a 50 mL solution volume of 2) MDV alone; or MDV combined with 3) 0.6 mg of 25OHD3; 4) 1.2 mg of 25OHD3; or 5) 2.4 mg of 25OHD3. At hatch, hatchability of set and live embryonated eggs, hatchling body weight, hatch residue analysis, serum IgY and alpha-1 acid glycoprotein (AGP) concentrations, and the expression of genes related to immunity (INFa, INFb, INFg, TLR-3, and TLR-21) and vitamin D3 activ-ity (1 a-hydroxylase, 24 hydroxylase, and vitamin D receptor) were determined. No significant treatment dif-ferences were observed for hatchability of set and live embryonated eggs, or for serum IgY and AGP concentra-tions. However, hatchling body weight was higher when MDV was combined with either 1.2 or 2.4 mg of 25OHD3 than when MDV was provided alone or in combination with 0.6 mg of 25OHD3. Also, in comparison to the nonin-jected treatment group, the expression of the genes for 1 a-hydroxylase and 24 hydroxylase was improved when MDV was combined with either 1.2 or 2.4 mg of 25OHD3. Lastly, expression of the genes linked to viral detection (TLR-3) and antibody production (INF-b) was increased in those treatments that contained any level of 25OHD3. These results indicate that in comparison to controls, the effects of MDV were observed to be greater on hatchling BW and splenic gene expression when it was administered in combination with the 1.2 or 2.4 mg doses of 25OHD3. Further research is needed to deter-mine the posthatch effects of the administration of vari-ous levels of 25OHD3 in combination with MDV.

引用

页数：9

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