masterThesis
Caracterização físico-química do colostro e leite de éguas puras e mestiças da raça quarto de milha
Fecha
2019-02-25Registro en:
BARRETO, Ícaro Marcell Lopes Gomes. Caracterização físico-química do colostro e leite de éguas puras e mestiças da raça quarto de milha. 2019. 55f. Dissertação (Mestrado em Produção Animal) - Universidade Federal do Rio Grande do Norte, Universidade Federal do Rio Grande do Norte, Natal, 2019.
Autor
Barreto, Ícaro Marcell Lopes Gomes
Resumen
Equideoculture has shown social and economic importance for Brazil, being mainly driven
by the follow-up of equestrian sports, which imposes significant growth of the national
herd. Although there is already considerable export of equine meat in Brazil, little is said
about the exploitation of the milk of mares, a food of high nutritional value that stands out
for the presence of bioactive compounds, the nutritional quality of the lipid and protein
fractions and the similarity with human milk. The objective was to characterize, in physical
and chemical aspects, the colostrum and the milk of pure and crossbred Quarter Horse
mares. Pure (34) and crossbred (5) mares were selected in three different state farms, which were separated into groups according to age, calving order, physiological state and
Quarter Horse blood grade. Colostrum samples were collected in the first six hours after
parturition and the milk samples from the 7th day postpartum, with intervals of 14 days,
until the end of lactation. The samples were refrigerated and sent to Laboleite (UFRN),
where they were analyzed for chemical composition. Colostrum was evaluated by
refractometry. The data were tabulated and subjected to descriptive statistics and analysis
of variance by the F-Test and the groups were compared using the Tukey test, using the
5% level of significance. There was a high protein content and reduced lactose content for
colostrum of Quarter Horse mares. Milk has no composition influenced by the degree of
blood or the age of the matrices. However, variations in the lactation stage and the calving
order alter the chemical composition of the Milk Quarter.