English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The cross between Muscovy, as a commercial duck, and Sudani duck improves the carcass quality and immunity compared to commercial duck. The objective of the current study to improve the immunity of Muscovy by crossing Sudani females with Muscovy males. At 32 wks of age, the Muscovy males (M) were mated with Sudani (S) females. At 8 wk of age, 16 birds (8 males + 8 females) from each strain and their cross were used to determine some blood constituents and immune response. The results revealed that MS cross recorded high positive heterosis for Cell-mediated immune (CMI) response at 24, 48 and 72h post PHA-P injection, and for the relative lymphoid organs weight. The MS cross recorded negative heterosis for White Blood Cells (WBCs) count, lymphocyte, monocytes and eosinophils (%); however, there was positive hetrosis for heterophils and H/L ratio. Both males and females recorded positive heterosis for CMI response at 24, 48 and 72h post injection. Concerning lymphoid organs, males had positive heterosis for bursa, while the females had negative heterosis. Both males and females had positive heterosis for spleen. However, the females had higher positive heterosis compared to the males. Finally, the MS cross had higher immunological parameters and low mortality and defects rates when compared with for Muscovy duck strain. It is concluded the cross between commercial duck with Sudani ducks strains, improve the immunity in the cross compared to Muscovy as a commercial duck.

HEMATOLOGICAL AND IMMUNOCOMPETENCE PARAMETERS OF SUDANI, MUSCOVY DUCKS AND THEIR CROSS