Publication Database

Impact of nano-bromocriptine on egg production performance and prolactin expression in layers (2021)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Dawod, Ahmed

Osman, Noha

Heikal, Hanim S.

Ali, Korany A.

Kandil, Omaima M.

Shehata, Awad A.

Hafez, Hafez M. (WE 15)

Mahboub, Hamada

Quelle

Animals

Bandzählung: 11

Heftzählung: 10

Seiten: Artikel 2842

ISSN: 2076-2615

Sprache

Englisch

Verweise

URL (Volltext): https://www.mdpi.com/2076-2615/11/10/2842

DOI: 10.3390/ani11102842

Pubmed: 34679863

Kontakt

Nutztierklinik: Abteilung Geflügel

Königsweg 63
14163 Berlin
+49 30 838 62676
gefluegelkrankheiten@vetmed.fu-berlin.de

Abstract / Zusammenfassung

The current study aimed to investigate the potential use of nano-bromocriptine in improving the laying performance of late laying hens by modulating the prolactin gene expression. A total of 150 NOVOgen brown laying hens aged 70 weeks were randomly allocated into three groups of 50 birds each. The first group was kept as a control, while the second and the third groups were treated with bromocriptine and nano-bromocriptine, respectively, at a dose of 100 µg/kg body weight per week. The pause days, egg production, feed per dozen egg, and Haugh unit were determined on a monthly basis. Also, the relative prolactin gene expression in the pituitary gland was quantified using qPCR and the number of the ovarian follicles was determined after slaughtering at the 84th week of age. It was found that nano-bromocriptine and bromocriptine improved egg laying performance with minimal pause days, reduced feed per dozen egg, and depressed the relative prolactin gene expression; however, nano-bromocriptine treatment was significantly effective compared to bromocriptine. In conclusion, nano-bromocriptine might be beneficial for elongating sequences and reducing pauses.