Academic Journal
Influence of Protein and Energy Level in Finishing Diets for Feedlot Hair Lambs: Growth Performance, Dietary Energetics and Carcass Characteristics
| العنوان: | Influence of Protein and Energy Level in Finishing Diets for Feedlot Hair Lambs: Growth Performance, Dietary Energetics and Carcass Characteristics |
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| المؤلفون: | F. G. Ríos-Rincón, A. Estrada-Angulo, A. Plascencia, M. A. López-Soto, B. I. Castro-Pérez, J. J. Portillo-Loera, J. C. Robles-Estrada, J. F. Calderón-Cortes, H. Dávila-Ramos |
| المصدر: | Asian-Australasian Journal of Animal Sciences, Vol 27, Iss 1, Pp 55-61 (2014) |
| بيانات النشر: | Asian-Australasian Association of Animal Production Societies, 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Animal culture LCC:Animal biochemistry |
| مصطلحات موضوعية: | Energy Intake, Carcass Composition, Feedlot Hair Sheep, Growth Performance, Productive Response, Animal culture, SF1-1100, Animal biochemistry, QP501-801 |
| الوصف: | Forty-eight Pelibuey×Katahdin male intact lambs (23.87±2.84 kg) were used in an 84-d feeding trial, with six pens per treatment in a 2×2 factorial design arrangement. The aim of the study was to evaluate the interaction of two dietary energy levels (3.05 and 2.83 Mcal/kg ME) and two dietary protein levels (17.5% and 14.5%) on growth performance, dietary energetics and carcass traits. The dietary treatments used were: i) High protein-high energy (HP-HE); ii) High protein-low energy (HP-LE); iii) Low protein-high energy (LP-HE), and iv) Low protein-low energy (LP-LE). With a high-energy level, dry matter intake (DMI) values were 6.1% lower in the low-protein diets, while with low-energy, the DMI values did not differ between the dietary protein levels. Energy levels did not influence the final weight and average daily gain (ADG), but resulted in lower DMI values and higher gain efficiencies. No effects of protein level were detected on growth performance. The observed dietary net energy (NE) ratio and observed DMI were closer than expected in all treatments and were not affected by the different treatments. There was an interaction (p2.80 Mcal/kg ME). Providing a level of protein above 14.5% does not improves growth-performance, dietary energetics or carcass dressing percentage. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1011-2367 1976-5517 77622391 |
| Relation: | http://www.ajas.info/upload/pdf/ajas-27-1-55-6.pdf; https://doaj.org/toc/1011-2367; https://doaj.org/toc/1976-5517 |
| DOI: | 10.5713/ajas.2013.13307 |
| URL الوصول: | https://doaj.org/article/64e9928e15f543afbec2d7f776223918 |
| رقم الانضمام: | edsdoj.64e9928e15f543afbec2d7f776223918 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10112367 19765517 77622391 |
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| DOI: | 10.5713/ajas.2013.13307 |