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Comparison of an intermittent, short-dawn/dusk photoperiod with an increasing, long-dawn/dusk photoperiod on broiler growth, stress, and welfare.
Nelson JR, Bray JL, Delabbio J, Archer GS. Nelson JR, et al. Poult Sci. 2020 Aug;99(8):3908-3913. doi: 10.1016/j.psj.2020.05.015. Epub 2020 Jun 20. Poult Sci. 2020. PMID: 32731977 Free PMC article.
The photoperiod in the ISD treatment consisted of 24L:0D day 0 to 6, 16L:8D day 7 to 13, 12L:4D:2L:6D day 14 to 20, 12L:4D:3L:5D day 21 to 27, 12L:4D:4L:4D day 28 to 41, and 13L:3D:5L:3D day 42 to 45, with a 1-min transition between light and dark periods. The photoperiod …
The photoperiod in the ISD treatment consisted of 24L:0D day 0 to 6, 16L:8D day 7 to 13, 12L:4D:2L:6D day 14 to 20, 12L:4D:3L:5D day …
Housing and management characteristics of calf automated feeding systems in the Upper Midwest of the United States.
Jorgensen MW, Janni K, Adams-Progar A, Chester-Jones H, Salfer JA, Endres MI. Jorgensen MW, et al. J Dairy Sci. 2017 Dec;100(12):9881-9891. doi: 10.3168/jds.2017-12792. Epub 2017 Oct 4. J Dairy Sci. 2017. PMID: 28987578 Free article.
Calves on these farms received 3.7 0.75 L (range: 2 to 6) of colostrum, but 22% of the tested calves had serum total protein values lower than 5.0 g/dL. ...
Calves on these farms received 3.7 0.75 L (range: 2 to 6) of colostrum, but 22% of the tested calves had serum total protein values l …