Productive, economic and qualitative effects of different nutritional programs for growing and finishing pigs
DOI:
https://doi.org/10.5433/1679-0359.2012v33n6Supl2p3323Keywords:
Amino acids, Carcass, Lysine, Muscle, Stress.Abstract
The objective of this work was evaluate the best nutritional program for growing pigs, between five comercial diets with different levels of protein (high, medium and low), chrome picolinate and ractopamine for finishing pigs. Performance, carcass, economy and meat quality were evaluated. Seventy pigs (Pen Ar Lan) were used (35 barrows and 35 gilts) with initial weight ± standard deviation of 25.22 ± 2.5 kg and were slaughtered with final weight plus standard deviation of 119.08 ± 6.0kg. Difference between high protein and low protein + chrrome was observed to feed convertion during growth phases, with high protein showing better results. Difference was observed during finishing phase II to daily gain, showing better results for ractopamine over low protein. Muscle and fat deposition over carcass showed better results for ractopamine against low protein only. Lower levels of drip loss was observed for low protein and ractopamine treatments against higher levels of protein treatments. Ractopamine also showed the best cost when compared with all treatments and was the best nutritional program studied.
Metrics
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2013 Semina: Ciências Agrárias
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
O Copyright dos manuscritos publicados pertence ao periódico. Como são publicados em um periódico de acesso aberto, eles estão disponíveis gratuitamente, para uso privado ou para fins educacionais e não comerciais.
A revista tem o direito de fazer, no documento original, alterações referentes às normas lingüísticas, ortografia e gramática, com o objetivo de garantir as normas padrão do idioma e a credibilidade da revista. No entanto, respeitará o estilo de escrita dos autores.
Quando necessário, alterações conceituais, correções ou sugestões serão encaminhadas aos autores. Nesses casos, o manuscrito deve ser submetido a uma nova avaliação após revisão.
A responsabilidade pelas opiniões expressas nos manuscritos é inteiramente dos autores.