Effect of dietary acidification on mortality rates, general performance, carcass characteristics, and serum chemistry of broilers exposed to cycling high ambient temperature stress

Daskiran, M., Teeter, R. G., Vanhooser, S. L., Gibson, M. L. and Roura, E. (2004) Effect of dietary acidification on mortality rates, general performance, carcass characteristics, and serum chemistry of broilers exposed to cycling high ambient temperature stress. Journal of Applied Poultry Research, 13 4: 605-613.

Author Daskiran, M.
Teeter, R. G.
Vanhooser, S. L.
Gibson, M. L.
Roura, E.
Title Effect of dietary acidification on mortality rates, general performance, carcass characteristics, and serum chemistry of broilers exposed to cycling high ambient temperature stress
Journal name Journal of Applied Poultry Research   Check publisher's open access policy
ISSN 1056-6171
1537-0437
Publication date 2004-01-01
Year available 2004
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 13
Issue 4
Start page 605
End page 613
Total pages 9
Place of publication Champaign, IL, United States
Publisher Poultry Science Association
Language eng
Formatted abstract
A 2-phase (starter and grower) experiment was conducted to evaluate efficacy of a commercial phosphoric and citric acid based dietary acidifier (Lucta'cid) on broiler performance, survivability, serum chemistry, and carcass characteristics during cycling high ambient temperature stress. Starter phase acidifier supplementation (0 and 0.2% of diet) had no impact (P > 0.1) on broiler performance. The grower phase examined the 2 starter phase acidifier exposure histories along with 5 acidifier inclusion levels (0, 0.05, 0.10, 0.20, 0.30%) under cycling high ambient temperatures. A significant starter phase acidifier history x grower phase acidifier inclusion level interaction was noted on final BW, BW gain, and mortality. Mortality for birds lacking starter phase acidifier exposure declined quadratically (P < 0.05) with acidifier level, whereas no such response was noted for chicks consuming acidifier during the starter period. Broiler performance and survivability data, combined to estimate productivity per bird placed, indicated a continued mortality-driven acidifier history x inclusion level interaction (P < 0.10) on hot carcass weight, chilled carcass weight, breast yield, and leg quarter weight. Birds lacking starter phase acidifier and consuming acidifier during grower phase exhibited increased carcass, leg quarters, and breast yield per bird placed. In conclusion, data suggest that grower acidifier supplementation has the potential to reduce economic losses attributable to heat stress.
Keyword Dietary acidifier
Cycling chronic heat stress
Broiler
Mortality
Performance
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Nutrition and Food Sciences Publications
 
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Created: Tue, 08 Mar 2011, 02:19:21 EST