Infectious Bronchitis Vaccination Protocols for Laying Hens by A. Sulaiman, J. R. Roberts

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Penyebaran Kutikula Pada Kerabang Telur Pada Usaha Peternakan Ayam Dengan Sistem Free Range by Elfira Kariane Suawa, J R Roberts

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Penyebaran Kutikula Pada Kerabang Telur Pada Usaha Peternakan Ayam Dengan Sistem Free Range by Elfira Kariane Suawa, J R Roberts

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Copper hydroxychloride is more efficacious than copper sulfate in improving broiler chicken's growth performance, both at nutritional and growth-promoting levels by H.T.T. Nguyen, N. Morgan, J.R. Roberts, R.A. Swick, M. Toghyani

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Zinc hydroxychloride supplementation improves tibia bone development and intestinal health of broiler chickens by H.T.T. Nguyen, N. Morgan, J.R. Roberts, S.-B. Wu, R.A. Swick, M. Toghyani

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