Comparison of two lighting regimens and drinker cleaning programmes on the performance and incidence of leg abnormalities in Turkey males

Patricia Y. Hester Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

I. C. Peng Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

R. L. Adams Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

E. J. Furumoto Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

J. E. Larsen Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

Phyllis M. Klingensmith Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

O. A. Pike Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

W. J. Stadelman Department of Animal Sciences, Purdue University, West Lafayette, Indiana, 47907, USA

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Abstract

1. Turkey males subjected to a low intensity step‐down (LISD) lighting programme showed significantly heavier body weights after 20 weeks of age and significantly better feed conversions after 14 weeks of age compared with males reared in a high intensity step‐up lighting (HISU) programme.

2. Although both nonchilled and chilled carcase weights were higher, the dressing percentages were lower for males of the LISD lighting regimen.

3. Males of the HISU lighting programme had significantly fewer leg abnormalities, shorter tarso‐metatarsi, lighter drumstick weights, and lighter tibia weights.

4. Males on the HISU lighting programme from 15 to 19 weeks of age had larger testes; however, after 20 weeks of age they were larger in males on the LISD lighting regimen.

5. Cleaning and disinfecting the drinking troughs daily rather than weekly had no effect on any production variable measured.

Notes

Journal Paper No. 9750 of the Purdue University Agricultural Experiment Station.

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Comparison of two lighting regimens and drinker cleaning programmes on the performance and incidence of leg abnormalities in Turkey males

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Comparison of two lighting regimens and drinker cleaning programmes on the performance and incidence of leg abnormalities in Turkey males

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