Genomic evaluation of pig semen quality in the CzePig program
Year | 2025 |
Cathegory | Publication in specialized journals |
Internal link | 25050.pdf |
Abstract | The aim of the present study was to estimate genetic parameters of boar reproductive traits based on SNP data. A total of 109,836 semen samples were collected from 2249 boars between 2010 and 2023. Five basic traits were assessed: sperm volume, concentration and motility, number of abnormal sperm and, for the first time, libido. In addition, two derived traits were assessed: total sperm count and functional sperm count. The genetic parameters were estimated using the single-step best linear unbiased genome prediction method (ssGBLUP). Dam and sire breeds were evaluated separately. Five base traits were estimated using five-trait models, while two derived traits were estimated using single-trait models. Heritability coefficients achieved lower values for all semen quality traits. For the basic traits, heritability ranged from 0.099 to 0.342. The greatest difference between breeds was observed in the heritability of the trait sperm concentration (0.099 and 0.271, respectively). The heritability of libido was twice as high in boars of sire breeds than in boars of dam breeds. The genetic parameters estimated by ssGBLUP can be used in routine genetic evaluations to improve accuracy of the pig breeding process. |
VÚŽV v.v.i. > List of our publications >