Spray dried plasma in substitution to the powdered skimmed milk in diets without antibiotics for weaned pigs to the 21 days of age / Plasma sanguíneo em substituição ao leite desnatado em dietas sem antibióticos para leitões desmamados aos 21 dias de idade

AUTOR(ES)

Gonzalo Lora Graña

DATA DE PUBLICAÇÃO

2007

RESUMO

A study was accomplished with the objective of determining the level of Spray Dried plasma (SDP) to be used in substitution to the powdered skimmed milk in diets without antibiotics for pigs weaned to the 21 days of age. 108 barrous and female pigs were used, with initial weight of 6,05 0,35 Kg, distributed in experimental blocks randomized, with four treatments, nine blocks and three animals for experimental unit. The treatments consisted of levels of inclusion of 0,0; 2,5; 5,0 and 7,5% of SDP in the Period I (of the 22 to the 28 days of age); 0,0; 1,25; 2,50; 3,25 of SDP in the Period II (of the 29 to the 35 days of age). Blocks was constituted in function of the initial weight of the animals, the animals were maintained in the experiment up to 49 days of age. The relationship aminoacid was maintained between the lisina and the other essential amino acids, with base in the concept of ideal protein for piglets in the phase pré-initial. The ration consumption and the weight gain of the animals were influenced by the levels of inclusion of SDP in the period I (P <0,10), the bio- nutritional index indicated an improvement in the feed conversion (P <0,05) without difference of the diarrhea occurrence (P>0,05). There was no effect (P>0,10) of the treatments on the consumption of ration of the pigs in the period I+II. However, the increment of the levels of SDP provided increase in the weight gain (P<0,10) and the bio-nutritional index indicated an improvement in the feed conversion (P<0,05), doesn t tend significant difference in the diarrhea occurrence (P>0,05). In the period I+II+III the treatment four that understood the animals that consumed 7,5% of SDP the first week and 3,75% in the second week pós-weaning it differed of the other treatments on the consumption of ration of the pigs, on the medium daily gain (P <0,10) and on the bio-nutritional index (P <0,05), in the case of the diarrhea occurrence it was smaller in the treatments that had plasma. The levels of inclusion of spray dried plasma in diets without antibiotics for pigs of 5,0% in the period I, 2,5% in the period II.

ASSUNTO(S)

diárreia diarrhea nutricao e alimentacao animal Índice bionutricional bio-nutritional index desmame precoce weaning

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