Improving broiler performance at market age regardless of stocking density by using a pre-starter diet
نویسندگان
چکیده
Broiler early nutrition has caught the attention of nutritionists due to positive correlation between growth rate and market weight. Early strategies such as low Ca levels or use highly digestible ingredients (e.g., spray-dried porcine plasma [SDPP]) have been reported improve gut muscle development, immunity, overall bird. On other hand, recent works suggested that stocking density represents main constrain for modern chickens express their full genetic potential. The current study aimed elucidate potential effects pre-starter feeding on contrasting livestock densities. followed a factorial design 2 starter programs (standard [0–11d] vs. [0–4 d] + standard [4–11 d]) by 3 densities (low, medium, high, 27, 33, 39 kg/BW/m2, respectively). Birds placed at showed higher BW better FCR than those high (P < 0.05) being this evident only after d 28. birds fed diet led 4 0.001) were maintained until age (+2.54%; P 0.05). also heavier carcasses (+2.2%; 0.05), improved uniformity 0.10) lower incidence lameness compared diet. Results confirm that, regardless used, diets (0–4 d) could lead
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ژورنال
عنوان ژورنال: The Journal of applied poultry research
سال: 2022
ISSN: ['1537-0437', '1056-6171', '1542-6629']
DOI: https://doi.org/10.1016/j.japr.2021.100232