Banca de DEFESA: ALCIONE CELLA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ALCIONE CELLA
DATA : 26/07/2019
HORA: 09:00
LOCAL: Embrapa Suínos e Aves (Concórdia-SC)/Sala de Vídeoconferência
TÍTULO:

Variations in the nutritional composition of proteic supplement used on feeding piglets.

PALAVRAS-CHAVES:

Mixing Process; Bromatology; Acidity; Peroxide value; Humid and Temperature.

PÁGINAS: 45
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
RESUMO:

The nutritional and organoleptic quality of the ingredients used to make piglets diets is fundamental to animal performance. The objective of this study was to analyze the possible causes of variation so that the protein supplement for piglets does not meet the previously defined standard. Five treatments were established: "Control" (T1), with standard formulation; "PxMais5" (T2), with 5% more premix vitamin mineral of piglets in the formulation; "PxMenos5" (T3), removed 5% of the standard dosage of the premix vitamin mineral of piglets in the formulation. These three treatments were produced in a mixer with a capacity of 400 kg; "Routine / Ration" (T4), formulation of T1 produced in a batch of 4,000 kg; "Routine / Premix" (T5), formulation of T1 produced in a batch of 1,200 kg. For each treatment, three bags of 20kg were stored in three different environments where room temperature and relative humidity was recorded. On days 0, 7, 15 and after fortnightly up to 120 days, samples of each treatment were collected for centesimal analysis, minerals, peroxide index (meq/Kg) and acidity (mg/g). Samples for water activity analysis (Aw) were collected every two weeks and samples were collected at 0, 45, 90 and 120 days for microbiological analysis (counting of viable aerobic mesophiles CFU/g). Storage site influenced the Aw values of treatments. The acidity was higher in T5 (3.09 ± 0.06; P <0.05). The crude protein (%) of T3 (26.43 ± 0.13) differed (P <0.05) from T4 (25.87 ± 0.13) which in turn differed (P <0.05) from T5 (23.20 ± 0.13). The different treatments influenced the results of nutritional composition and chromium, selenium and ethereal extract presented critical values.

MEMBROS DA BANCA:
Externo à Instituição - João Dionísio Henn
Presidente - 2648941 - IVAN BIANCHI
Externo ao Programa - 1849719 - JUAHIL MARTINS DE OLIVEIRA JUNIOR