Effects of Simulated Sonic Booms on the Hatchability of White Leghorn Chicken Eggs.

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Abstract:

Eggs of domestic white leghorn chickens were exposed to simulated sonic booms in the Sonic Boom Test Facility at BBN Systems and Technologies in Canoga Park CA. Two-hundred and fifty-two fertile eggs in four groups were exposed to booms with levels of 3 psf group A, 20 psf group B, 0 psf control group C and 30 psf group D. Ten exposures were given daily separated by 10 sec intervals day 2-19 of incubation. Chicks were held for four days after hatching for observation. By chance, the mean egg weight at laying of groups A and C differed from groups B and D. Differences in survivorship among the groups during incubation were explained by this difference, with survivorship significantly lower in the least exposed groups A and C Time series analysis, Mantel-Cox criterion c2 5.67 df 1,245 p 0.05. Final counts of the numbers of eggs pipped and hatched did not differ c21.21 df 3 p 0.05, nor did weekly weights and weight at hatching ANOVA, p 0.05. None of the exposed eggs cracked during exposure and all chicks hatched were normal. Resonance frequencies of 23 chicken eggs ranged between 468 and 1036 Hz, and of4 quail eggs between 1274 and 1475 Hz, 6-7 octaves above the peak energy in the simulated sonic booms.

Author(s):
Bowles, Ann E. ; Knobler, Meridith ; Sneddon, Matthew D. ; Kugler, B. A.
Author Organization(s):
SYSTEMS RESEARCH LABS INC DAYTON OH
Descriptive Note:
Final rept. 1 Apr-1 Jun 94,
Pagination:
0047

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AL/OE-TR-1994-0179
Contract/Grant Number(s):
F33615-89-C-0574
Task Number(s):
05
Project Number(s):
3037
Monitor Series:
TR-1994-0179, AL/OE
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_6_Net Centric; JCA_6.4.1_Secure Information Exchange; JCA_6.3.3_Spectrum Management; JCA_5_Command and Control; JCA_8_Building Partnerships; JCA_1_Force Support; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.4_Information Assurance; JCA_1.2_Force Preparation; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.3_Net Management; JCA_8.2_Shape; JCA_5.3_Planning; JCA_1.2.3_Educating; JCA_6.2_Enterprise Services; JCA_8.2.1_Partner with Governments and Institutions
Modernization Areas:
Microelectronics
Communities of Interest:
Biomedical
Descriptor(s):
*STRESS(PHYSIOLOGY), *RESPONSE(BIOLOGY), *CHICKENS, *SONIC BOOM, CONTROL, SIMULATION, PEAK VALUES, EXPOSURE(GENERAL), TOXICITY, ENERGY, COUNTING METHODS, TIME SERIES ANALYSIS, RESONANT FREQUENCY, WEIGHT, INCUBATION, ACOUSTICS, MEAN, DOMESTIC, EGGS, TEST FACILITIES
Field(s)/Group(s):
Noise Pollution and Control, Biology, Stress Physiology
Keyword(s):
WHITE LEGHORN CHICKEN EGGS, HATCHABILITY, PE63723F, WUAL30370506
Report Date:
1994 Jun 01