Uso do inibidor de tripsina do leite de soja na imunização passiva de cabritos neonatos
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Data
2013-06-27
Autores
Kamimura, Bruna Akie [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
A imunização passiva de cabritos ocorre por meio da ingestão do colostro, rico em imunoglobulinas (Igs), que são absorvidas nas primeiras horas de vida do animal. A incorporação de inibidores de tripsina ao colostro pode impedir a proteólise das Igs e possibilitar aumento do potencial de desenvolvimento do sistema imune do animal, principalmente quando o colostro apresentar baixa concentração desta proteína. O objetivo deste estudo foi avaliar a transferência de imunidade passiva em cabritos alimentados com colostro caprino adicionado de “leite” de soja contendo inibidores de tripsina ativos. O “leite” de soja foi preparado conforme recomendação da Embrapa, e submetido ao aquecimento a 80°C por 15 min. O colostro foi aquecido a 56°C por 60 min. e obtido de cabras com parições concentradas no período da tarde, sendo a primeira ordenha realizada às 8 horas do dia seguinte, e a segunda 24 horas após. Foram utilizados 25 cabritos recém-nascidos da raça Saanen alimentados com colostro caprino de primeira (T1) e segunda (T2) ordenha, e com 10% (T3), 20% (T4) e 30% (T5) de “leite” de soja em substituição ao colostro caprino de segunda ordenha. As amostras de sangue foram colhidas por venopunção da jugular (1, 12, 24, 36 e 48 h após o nascimento), sendo a primeira colheita realizada antes do fornecimento do colostro. As análises bioquímicas evidenciaram a importância da ingestão do colostro de primeira ordenha que apresentou valores elevados para proteína total (PT) de 8,48 g.dL-1, gamaglutamiltransferase (GGT) de 1.321 U.L-1, fosfatase alcalina (ALP) de 189 U.L-1 e fósforo de 43,9 mg.dL-1. A atividade dos inibidores de tripsina variou de 1.058 (T2) a 2.329 UTI.mg-1 (T5). Os resultados das análises bioquímicas séricas mostraram que os tratamentos não influenciaram as concentrações dos mesmos, porém houve aumento nas atividades...
Passive immunization of kids occurs through ingestion of colostrum rich in immunoglobulins (Igs) that are absorbed in the first hours of the animal’s life. Incorporation of trypsin inhibitors in colostrum can prevent proteolysis of Igs and improves potential development of animal’s immune system, especially when the colostrum has low Ig concentration. Therefore the aim of this study was to evaluate the effect of goat colostrum added soymilk containing active trypsin inhibitors in the transference of passive immunity in goat kids. The soymilk was prepared as recommended by Embrapa and heated to 80°C for 15 minutes. The goat colostrum was heated to 56°C for 60 minutes, obtained from goats with concentrated calving in the afternoon; the first milk was performed at 8 am of next day, and the second milk 24 hours later. The study used 25 Saanen goat kids fed with goat colostrum of first milk (T1), goat colostrum of second milk (T2), goat colostrum of second milk plus 10% of soymilk (T3), goat colostrum of second milk plus 20% of soymilk (T4) and goat colostrum of second milk plus 30% of soymilk (T5). Blood samples were collected by jugular venipuncture (1, 12, 24, 36 and 48 hours after birth), the first sample was collected before the first feeding of colostrum. Biochemical analysis indicated the importance of colostrum of first milk with high values for total protein (TP) of 8.48 g.dL-1, gamma glutamyl transferase (GGT) 1,321 U.L-1, alkaline phosphatase (ALP) 189 U.L-1 and phosphorus 43.9 mg.dL-1. The activity of trypsin inhibitors ranged from 1,058 (T2) to 2,329 UTI.mg-1 (T5). Results of serum biochemical analyzes did not differ among treatments, but GGT and ALP activities, and IgG concentration increased 12 hours postpartum and after feeding of colostrum. The results indicate that soymilk is an important alternative source to incorporate active trypsin inhibitors that improve... (Complete abstract click electronic access below)
Passive immunization of kids occurs through ingestion of colostrum rich in immunoglobulins (Igs) that are absorbed in the first hours of the animal’s life. Incorporation of trypsin inhibitors in colostrum can prevent proteolysis of Igs and improves potential development of animal’s immune system, especially when the colostrum has low Ig concentration. Therefore the aim of this study was to evaluate the effect of goat colostrum added soymilk containing active trypsin inhibitors in the transference of passive immunity in goat kids. The soymilk was prepared as recommended by Embrapa and heated to 80°C for 15 minutes. The goat colostrum was heated to 56°C for 60 minutes, obtained from goats with concentrated calving in the afternoon; the first milk was performed at 8 am of next day, and the second milk 24 hours later. The study used 25 Saanen goat kids fed with goat colostrum of first milk (T1), goat colostrum of second milk (T2), goat colostrum of second milk plus 10% of soymilk (T3), goat colostrum of second milk plus 20% of soymilk (T4) and goat colostrum of second milk plus 30% of soymilk (T5). Blood samples were collected by jugular venipuncture (1, 12, 24, 36 and 48 hours after birth), the first sample was collected before the first feeding of colostrum. Biochemical analysis indicated the importance of colostrum of first milk with high values for total protein (TP) of 8.48 g.dL-1, gamma glutamyl transferase (GGT) 1,321 U.L-1, alkaline phosphatase (ALP) 189 U.L-1 and phosphorus 43.9 mg.dL-1. The activity of trypsin inhibitors ranged from 1,058 (T2) to 2,329 UTI.mg-1 (T5). Results of serum biochemical analyzes did not differ among treatments, but GGT and ALP activities, and IgG concentration increased 12 hours postpartum and after feeding of colostrum. The results indicate that soymilk is an important alternative source to incorporate active trypsin inhibitors that improve... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Cabra, Colostro, Leite de soja, Leite - Composição, Imunoglobulinas, Inibidores da tripsina, Imunização, Colostrum
Como citar
KAMIMURA, Bruna Akie. Uso do inibidor de tripsina do leite de soja na imunização passiva de cabritos neonatos. 2013. ix, 57 p. Dissertação (mestrado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2013.