Banca de DEFESA: GUILHERME BEBER MARIN

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GUILHERME BEBER MARIN
DATE: 20/01/2022
TIME: 09:00
LOCAL: Web Conferência - https://us02web.zoom.us/j/89650667472?pwd=MkNMZmV6QTVHdXVCcUdSME
TITLE:

Impactful factors for interest variables during nursery and growth and finish phases.

KEY WORDS:

Mortality, Feed Conversion, Treatment Costs, Remuneration to the Producer.

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

Many factors can impact zootechnical outcomes during the swine grown phase, i.e., nursery and finishing, demonstrating variable proportion and linearity. Closeout groups performance data from years 2017 to 2019 was retrieved from the internal management software of a cooperative in Santa Catarina. Data was compiled and correlated with zootechnical indexes, totalizing 1.065 analyzed nursery closeout groups (representing 2,713,620 animals) and 5.296 growth and finish groups (representing 3.545.117 animals). Variables like nutrition, genetics, and age of the animals were not considered in the analysis since they are standardized in the cooperative's production system. The information was initially submitted to descriptive analysis of the response variables. Then, multiple regression analyzes were applied for the variables assumed to be normally distributed in order to select the factors that best explained them, including interactions of interest in the model. In regards to the nursery phase, the mortality, feed conversion, daily weight gain and producer remuneration were more affected by days of placements and comingling practicers, i.e., the number of sow farm piglet origins. On the other hand, when it comes to the season of year comparison (Winter vs Summer) and the days of sanitary void, these factors affected the feed conversion and daily weight gain. Average placement weight affected the daily weight gain and the producer's remuneration. In the growth and finish phase, the seasons mainly impacted mortality, treatment costs, and producer remuneration, while the average housing weight affected mortality and feed conversion. The number of origins promoted greater changes in mortality, daily weight gain, and treatment costs. The type of market (external versus internal) mainly influenced feed conversion, daily weight gain and producer remuneration, while the sanitary void was the variable that impacted the greatest number of response variables, being the mortality, feed conversion, drug costs and remuneration to the producer.

BANKING MEMBERS:
Interno - 2648941 - IVAN BIANCHI
Presidente - 564.081.370-91 - JALUSA DEON KICH - EMBRAPA
Externo à Instituição - PAULO EDUARDO BENNEMANN