Browsing by Author "Barrera Brito, Katherine Gianella"

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    Influencia de tiempos de instalación de pollitos bb sobre título de anticuerpos maternos y morfometría de las vellosidades intestinales
    (2018) Barrera Carmona, Anibal Paulino; Barrera Brito, Katherine Gianella; Astudillo Riera, Fabián Manuel
    The objective of this research was to evaluate the influence that the different times of broilers installation has on the yolk sac absorption, title of maternal antibody, and morphometric of the intestinal villus. For this research, it was used 500 male broilers Cobb 500 of 1 day of birth, which were distributed at random in a block design, with 4 treatments and 5 repetitions giving a total of 20 experimental units. Each experimental unit had 25 chicks, which were installed at 6 hours (T1), at 24 hours (T2), at 48 hours (T3) and at 72 hours (T4) after their birth. The results obtained revealed that for the title of maternal antibody there is an increase in its titration comparing the values of the first and fifth day. Also, the values of the experimental units of 6 hours (T1) were lesser than the other treatments. For the variable of morphometric of the intestinal villus there were significant differences in the 21 day of age, being the treatment of 72 hours the best treatment for the length of the intestinal villus with 1040.78 μm and for the width the treatment of 6 hours with 81.95 μm. With respect to the weight of the yolk sac there was an important difference, according to the Kruskal Wallis test where the best treatment was the one of 6 hours with 0.96 gr. The variables of the zoo technical performance there were no important difference at the end of the research.