Banca de QUALIFICAÇÃO: FÁBIO DA COSTA MÁLAGA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : FÁBIO DA COSTA MÁLAGA
DATA : 07/12/2018
HORA: 15:00
LOCAL: Instituto Federal Catarinense Campus Araquari, Prédio D, sala 302b
TÍTULO:

Analysis of subfertility in males swine of the Landrace breed

PALAVRAS-CHAVES:

Semen; fertility; animal breeding; reproductive performance.

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

The sperm analyzes are of paramount importance in the selection of breeding males, and Computer-assisted semen analysis (CASA) emerges as an important tool, because it allows a standardized and rapid evaluation of the characteristics of spermatic quality. However good seminal quality parameters do not guarantee the fertility potential of an individual. The objective of this work was to analyze the in vivo reproductive performance of Landrace males in a farm nucleus. We used retrospective data from of 982 females covered in protocols of artificial inseminations (AI) in farm nucleus. The doses of AI were homospermic, performed through intracervical AI with a dose in the concentration of 3.0x109 live spermatozoa conditioned between 15 and 18 ° C. The data included the evaluation of a population of 23 pure Landrace males, with at least 20 females inseminated in protocols of 2 to 3 doses of semen per heat. The total litter size (TLS) and farrowing rates (FR) differed (P <0.05) among the best performance male FV43961 (TLS: 15,285 ± 0,7768; FR: 95%) for males FV43889 (TLS: 11,036 ± 0,5906; FR: 84,7%), and FV67884 (TLS: 10,507 ± 0,7873; FR: 72%) and these differed (P <0.05) for the worst performance, NVSG5945 (TLS: 5,647 ± 0,7958; FR: 60%). The TLS did not differ between protocols with two (12,500 ± 0,4836) and three doses of AI (12,983 ± 0,1388). The results demonstrate the existence of individuals with lower fertility. From this it is possible to better manage the characteristic fertility by providing a larger database for geneticists to make their decisions during the breeding process of this breed/lineage.    

MEMBROS DA BANCA:
Presidente - 2648941 - IVAN BIANCHI
Interno - 1760760 - CARLOS EDUARDO NOGUEIRA MARTINS
Interno - 1046884 - ELIZABETH SCHWEGLER
Interno - 1830781 - ADOLFO JATOBA MEDEIROS BEZERRA
Interno - 1430573 - MIGUELANGELO ZIEGLER ARBOITTE
Interno - 1085177 - VANESSA PERIPOLLI
Interno - 2277465 - FABIANA MOREIRA