Bibliographic Details
| Title: |
Betaine and Antioxidants Improve Growth Performance, Breast Muscle Development and Ameliorate Thermoregulatory Responses to Cyclic Heat Exposure in Broiler Chickens |
| Authors: |
Majid Shakeri, Jeremy James Cottrell, Stuart Wilkinson, Mitchell Ringuet, John Barton Furness, Frank Rowland Dunshea |
| Source: |
Animals, Vol 8, Iss 10, p 162 (2018) |
| Publisher Information: |
MDPI AG, 2018. |
| Publication Year: |
2018 |
| Collection: |
LCC:Veterinary medicine
LCC:Zoology |
| Subject Terms: |
betaine, antioxidant, broiler, growth, heat stress, Veterinary medicine, SF600-1100, Zoology, QL1-991 |
| More Details: |
Heat stress (HS) is an environmental stressor challenging poultry production and requires a strategy to cope with it. A total of 288-day-old male broiler chicks were fed with one of the following diets: basal diet, basal with betaine (BET), or with selenium and vitamin E (AOX), or with a combination of BET and AOX, under thermoneutral and cyclic HS. Results showed that HS reduced average daily feed intake (ADFI) (p = 0.01) and average daily gain (ADG) (p < 0.001), and impaired feed conversion ratio (FCR) (p = 0.03) during rearing period (0–42 day). BET increased ADG (p = 0.001) and decreased FCR (p = 0.02), whereas AOX had no effects. Breast muscle weight was decreased by HS (p < 0.001) and increased by BET (p < 0.001). Rectal temperature was increased by HS (p < 0.001) and improved by BET overall. Respiration rate was increased by HS (p < 0.001), but BET decreased it during HS (p = 0.04). Jejunum transepithelial resistance was reduced by HS and had no effect on permeability whereas BET increased jejunum permeability (p = 0.013). Overall, the reductions in ADG of broiler chickens during HS were ameliorated by supplementation with BET, with much of the increase in ADG being breast muscle. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2076-2615 |
| Relation: |
http://www.mdpi.com/2076-2615/8/10/162; https://doaj.org/toc/2076-2615 |
| DOI: |
10.3390/ani8100162 |
| Access URL: |
https://doaj.org/article/eb00908deba54a31930ef8866e99dc97 |
| Accession Number: |
edsdoj.b00908deba54a31930ef8866e99dc97 |
| Database: |
Directory of Open Access Journals |
