Productive performance of Pelón Mexicano pigs in initiation fed with three levels of lysine in the diet
Abstract
The productive behavior of the Mexican Hairless pig fed with 100, 80 and 60 %Lys (T1, T2 and T3) of the dietary level of lysine recommended by the NRC for commercial pigs was studied. 12 piglets randomly distributed in three treatments were used, with an average initial weight of 12.00 ± 1.28 kg. Each treatment had four repetitions, the experimental unit was a piglet. The animals were weighed every week from the beginning to the end of the experiment; when they reached 25 kg of live weight they were sacrificed. The variables evaluated were: live weight (LWn), feed intake (CDAn), daily weight gain (GDPn) and feed conversion (CAn), n=week from 1 to 7. The results were processed by ANOVA and Tukey when (p<0.05). By reducing the level of lysine included in the diet, most of the variables analyzed were not affected. The growth curves presented by the animals were similar, so they followed the same growth rate. The treatment effect was significant (P<0.0198) for CDA1 and PV3. This suggests that nutritional lysine requirements for growing Mexican Hairless pigs could be up to 60% of those specified by the NRC for improved pigs, without compromising their productive capacity at 25 kg.
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