TEMPO DE PRENHEZ VS % BRIX EM COLOSTRO DE OVELHAS SANTA INÊS

• DOI: 10.22533/at.ed.0472031017

• Palavras-chave: IgG, refratômetro, ruminantes, sólidos totais

• Keywords: ATENA

• Abstract:

  Colostrum, the initial secretion

  of the mammary gland after birth, is an

  important source of immunity. The objective

  was to evaluate the quality of fresh and frozen

  colostrum as a function of the time of pregnancy.

  Samples of fresh and frozen colostrum were

  analyzed by the refractometer from the time of

  pregnancy of the sheep. The Tukey’s test was

  used with significance level of 5%. The mean

  total Brix solids (%) in relation to the time of

  pregnancy of the ewes did not differ (P> 0.05)

  between fresh and frozen samples. Of the

  total samples analyzed, 100% presented high

  total solids quality higher than 18% Brix, which

  corresponds to mean concentration> 50 mg /

  mL of IgG. Cut intervals between 18 and 22 of

  total solids of Brix (%) were demonstrated by

  the digital refractometry technique among the

  evaluated factors. After analyzing the results, it

  is concluded that the quality of the IgG estimated is verified in samples of fresh and frozen colostrum regardless of the pregnancy time

  of the Santa Inês sheep, which does not compromise the occurrence of the passive

  immunity transfer of the lambs.

• Número de páginas: 4