Affiliation:
1. Universidade Federal de Goiás, Brasil
Abstract
ABSTRACT The number of sheep flocks in Brazil is increasing. It is known that lambs must be slaughtered when young for producing quality meat. The current study evaluated the inclusion of protected methionine, protected lysine, lysophospholipid and amylolytic enzymes in a diet to lambs and their effects on weight gain and quantitative carcass traits at slaughtering. Eighty non-castrated male crossbred Dorper x Santa Inês lambs, 20.57 ± 4.33 kg live weight, were used. The feedlot lasted 64 days and 60 animals were slaughtered. There were no differences for live weight, daily feed intake, feed conversion and average daily weight gain at the first 28 days of feedlot. From the 28th day lysophospholipid treatment presented the highest live weight. Lysophospholipid and amylolytic enzyme presented the best performance in average daily gain, followed by protected methionine, control and protected lysine. Lysophospholipid treatment presented higher daily feed intake rates than protected lysine and protected methionine. Feed conversion was lower for amylolytic enzyme and higher for control. No changing in carcass traits was reported due to additives. Better performance may be achieved with feedlot lambs fed on diets with the addition of amylolytic enzyme and lysophospholipid at the finishing phase.
Reference27 articles.
1. General performance of growing Shami kids fed high energy and protected methionine;ABDELRAHMAN MM;Asian J Anim Vet Adv,2009
2. The effect of dietary yeast and protected methionine on performance and trace minerals status of growing Awassi lambs;ABDELRAHMAN MM;Livest Sci,2008
3. Rastrojo de maíz tratado con urea y metionina protegida en dietas para ovinos en crecimiento;ACOSTA ES;Interciencia,2012
4. Field bean (Vicia faba var minor) as a protein feed for growing lambs with and without protected lysine and methionine supplementation;ANTONGIOVANNI M;Ital J Anim Sci,2002
5. easyanova: Analysis of variance and other important complementary analyzes;ARNHOLD E.,2013
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