Hatchery feeding of starter diets to broiler chicks

Journal of Applied Poultry Research

Volumn 16, Issue 2, 2007, Pages 234-239

  Kidd, M T ^a   Taylor, J W ^b   Page, C M ^a   Lott, B D ^a   Chamblee, T N ^a  

^a MISSISSIPPI STATE UNIVERSITY   (United States)

^b Tyson Foods Incorporated   (United States)

Author keywords

Amino acid; Broiler; Early nutrition; Hatchery; Posthatch

Indexed keywords

AVES;

EID: 34249862297     PISSN: 10566171     EISSN: None     Source Type: Journal    
DOI: 10.1093/japr/16.2.234     Document Type: Article

References (9)

1. Uni, Z., S. Ganot, and D. Sklan. 1998. Posthatch development of mucosal function in the broiler small intestine. Poult. Sci. 77:75-82.
2. Shira, E. B., D. Sklan, and A. Friedman. 2005. Impaired immune responses in broiler hatchling hindgut following delayed access to feed. Vet. Immunol. Immunopathol. 105:33-45.
3. Noy, Y., and D. Sklan. 1998. Metabolic responses to early nutrition. J. Appl. Poult. Res. 7:437-451.
4. Noy, Y., and D. Sklan. 1999. Different types of early feeding and performance in chicks and poults. J. Appl. Poult. Res. 8:16-24.
5. Tyson Foods, Oxford, AL.
6. Diets were composed primarily of corn, soybean meal, poultry meal, and poultry oil (Table 1). Salinomycin sodium was used as a coccidiostat in all diets. Diets were least cost-formulated with no ingredient constraints on DI.-Met, L-Lys HCl, or L-Thr. Two isocaloric diets were formulated for hatchery feed: high and low density. Low density contained 1.24% digestible Lys and 23.3% CP, and high density contained 1.45% digestible Lys and 26.0% CP. The high-density diet was formulated to meet or exceed amino acid needs the first day of life based on industry norms. The low-density feed represented that of a typical starter diet for a US broiler operation. Upon placement in the pens, all birds consumed the crumbled starter diet to d 17. Although much more of the low-density feed was made, because it was also used for the starting period, enough high-density feed was made to attain good mixture uniformity before pelleting and crumbling. Birds consumed common pelleted diets from 18 to 28 and 29 to 37 d. Hence, dietary treatments were only administered in hatchery trays. Pellet durability index of the 18- to 28- and 29-to 37-d diets were 90.2 and 92.4%, respectively.
7. Extech Instruments Corp., Waltham, MA.
8. SAS Institute. 2001. SAS User's Guide. Version 8 ed. SAS Inst. Inc., Cary, NC. A randomized complete block design was employed. Statistical analyses used pen as the experimental unit. Data are reported as means of 9 replicate pens of 50 chicks each with a pooled SEM. Mortality was transformed using arcsin before analysis. Processing yield and intestine weights are expressed relative to BW rather than using BW as a covariate. Statistical significance is based on P ≤ 0.05.
9. Uni, Z., P. R. Ferket, E. Tako, and O. Kedar. 2005. In ovo feeding improves energy status of late-term chicken embryos. Poult. Sci. 84:764-770.