A5070747832- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Milk Quality and Mastitis in Dairy Cows
- Genetic Mapping and Diversity in Plants and Animals
- Animal Genetics and Reproduction
- Animal Behavior and Welfare Studies
- Effects of Environmental Stressors on Livestock
- Genetics and Plant Breeding
Universidad de Las Palmas de Gran Canaria
2021-2023
The aim of this study was to estimate genetic parameters for several female fertility criteria and choose the most suitable selection index in Spanish Florida Payoya goat breeds. In study, we analyzed as traits, age at first kidding (AgFiKid), interval between second kiddings (Int12Kid), second, third, remaining (Int3toKid), all (IntAllKid) 51,123 22,049 females, respectively. Genetic were estimated by fitting animal models using restricted maximum likelihood (REML) methodology. We proposed...
A total of 1,031,143 records daily dairy control test Spanish Florida goats were used for this study. The database was edited, and only the first three lactations kept. final contained 340,654 daily-test somatic cell counts from 27,749 daughters 941 males 16,243 goats. evolution count in last 14 years analyzed following French American international associations’ criteria risk mastitis goats, confirmed slight increase SCS importance problem (50% tests show a suffering mastitis). For genetic...
The analysis of the genomic landscape inbreeding using runs homozygosity (ROH) patterns is becoming an interesting tool to partially understand phenotypic differences among individuals. In this study, we analysed genome-wide ROH in two groups Florida goats. We first determined levels each individual by calculating ROH-based coefficients (FROH ). Then, individuals were divided into based on FROH : high (HI, >0.1) and low (LI, <0.03). Finally, performed extensive in-depth distribution group...
Genetic parameters of litter size (LS) and number kids born alive (NBA) were estimated across parities in Florida Payoya goat breeds using a threshold random regression model (RRM). We analysed the reproductive records for separately, total 130.849 67.478 from first to seventh Payoya, respectively, included analysis. Random regressions on Legendre polynomials standardised parity permanent environmental additive genetic effects. based our estimation all covariance components Bayesian...
This study aimed to estimate genetic parameters of reproductive efficiency over a wide age range females using random regression model (RRM) in Spanish goat breeds. A total 138,139 and 64,638 records from the first sixth parities Florida Payoya, respectively, were included analysis. Random regressions on Legendre polynomials standardised for permanent environmental additive effects. Estimation covariance components was based Bayesian inference GIBBS3F90 software. Differences among variance...
We studied the effect of Temperature Humidity Index (THI) (i.e., average temperature and relative humidity registered at meteorological stations) closest to farms taken during test day (TD), for total daily protein fat yields (fpy) three main Spanish dairy goats. The data were from Florida (11,244 animals 126,825 TD), Malagueña (12,215 141,856 TD) Murciano Granadina (5162 62,834 breeding programs by different linear models estimate nature fpy response throughout THI weeks lactation (Days in...
The aim of this study was to compare selection indices for important traits in intensive Spanish goat breeds four economic scenarios, using the Florida as most representative breed production system Spain. For analysis, we considered following traits: milk yield (MY), fat plus protein yields (FPY), casein (CY), somatic cell score (SCS), reproductive efficiency (RE), litter size (LS), mammary (MS), final (FS), body capacity index (BCI), and length productive life (LPL). We estimated genetic...