Details

Autor(en) / Beteiligte

• Ji, Z Q
• Hao, Y S
• Wang, Y T
• Zhang, B
• Tang, J
• Huang, W
• Zhang, Q
• Hou, S S
• Xie, M

Titel

Effects of coated sodium butyrate on growth performance, intestinal morphology, and caecal short-chain fatty acids of growing Pekin ducks

Ist Teil von

• British poultry science, 2023-08, Vol.64 (4), p.529-533

Ort / Verlag

England

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 1. A dose‒response experiment with six supplemental levels of coated sodium butyrate (CSB) (0, 250, 500, 750, 1,000, and 1,250 mg/kg) was conducted to investigate its effects on growth performance, intestinal morphology, and caecal short-chain fatty acids of growing Pekin ducks aged 14 to 35 d. A total of 288 male 14-d-old Pekin ducks were randomly allocated to six dietary treatments. Each treatment had eight replicate pens of six ducks per pen.2. The daily weight gain, daily feed intake, and feed/gain of ducks from 14 to 35 d of age were not influenced by increasing CSB levels. The relative weight and length of the duodenum, jejunum, and caecum increased linearly or quadratically as supplemental CSB increased (  < 0.05).3. For the ileum and caecum, the villus height and height/crypt depth increased linearly or quadratically, and the villus crypt depth decreased linearly as the supplemental CSB increased (  < 0.05). As supplemental CSB increased, the goblet cell numbers of the ileum increased and decreased and changed quadratically (  < 0.05), but caecal goblet cell number increased quadratically (  < 0.05). Increasing the CSB level linearly or quadratically elevated the concentrations of propionic acid and butyric acid in the caecum (  < 0.05).4. It was concluded that CSB can be used as a safe and effective feed additive to promote the intestinal integrity of growing ducks by improving intestinal morphology and increasing the concentration of caecal short-chain fatty acids.