Efectos de un β-adrenérgico comercial y varios niveles de lisina sobre la ganancia de peso de cerdos en finalización
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Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction. Pig industry has been evolving in the
obtaining of early genetic lines, with better food conversion
indexes and leaner meat. Additional to the
genetic improvement, non-nutritional additives have
been developed, with the capacity of increase the
production performances. Within this group of additives
we have the Ractopamine compound. Materials
and methods. A total number of 42 pigs (83,4±
0,22 kg) were used during 28 days, in which the effect
of two levels of Ractopamine were evaluated in
the diet (0 and 10 ppm) and three levels (lysd) of
lysine (0,65; 0,80 and 0,95) over the daily food consumption
(DFC), the daily increase of weight (DIW),
the difference of dorsal fat (P2) (DDF), depth of the
chop, area of the chop eye (ACHE), lean fat free tissue
(LFFT), and daily increase of lean fat-free tissue
(DILFFT). Results. For DIW, DDF, ACHE, LFFT and
DILFFT variable, we found high statistic difference
among treatments, obtaining higher rates in the animals
treated with with the maximum Lysd level and
Ractopamine in their diets. Conclusion. Adding 10
ppm of Ractopamine in the diet, significantly increased
the DILFFT. This fact can be a positive aspect
seen in the quantity of lean pork meat cuts.
Description
Keywords
Lisina, Beta - Adrenérgico, Ractopamina, Corporación Universitaria Lasallista, Cerdos - Producción, Cerdos - Cría, Cerdos - Alimentación y alimentos, Cerdos - Nutrición