Unknown

Dataset Information

0

Genetics of Lifetime Reproductive Performance in Italian Heavy Draught Horse Mares.


ABSTRACT: Our aims were to find a phenotypic variable to express mares' lifetime reproductive performance after 6 breeding seasons (BS) in Italian Heavy Draught Horse breed (IHDH), and to estimate its heritability. At first, 1487 mares in a training dataset were used to implement and validate a set of predictive coefficients (LFR-C) or equations (LFR-E) to estimate a lifetime foaling rate (LFR) after 6 BS, i.e., the number of foals generated divided by the opportunities to do so. Then, 3033 mares in a dataset with at least 3 registered BS, was used to estimate LFR for mares with 3, 4, or 5 registered RS. This dataset contained actual (n = 1950) and estimated (n = 1443) LFR, obtained by LFR-C, and LFR-E; Arcsine transformation of LFR-C and LFR-E were also analyzed in single trait animal models to estimate heritability. Overall, the LFR showed a moderate but significant genetic variation, and the heritability of the trait was high (0.24) considering it is a fitness trait. The arcsine transformation of LFR did not show any improvement of heritability. The present study indicates the possible use of a linear LFR variable for breeding purposes in IHDH breed considering both complete and incomplete reproductive careers.

SUBMITTER: Mantovani R 

PROVIDER: S-EPMC7341281 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Genetics of Lifetime Reproductive Performance in Italian Heavy Draught Horse Mares.

Mantovani Roberto R   Folla Fabio F   Pigozzi Giuseppe G   Tsuruta Shogo S   Sartori Cristina C  

Animals : an open access journal from MDPI 20200623 6


Our aims were to find a phenotypic variable to express mares' lifetime reproductive performance after 6 breeding seasons (BS) in Italian Heavy Draught Horse breed (IHDH), and to estimate its heritability. At first, 1487 mares in a training dataset were used to implement and validate a set of predictive coefficients (LFR-C) or equations (LFR-E) to estimate a lifetime foaling rate (LFR) after 6 BS, i.e., the number of foals generated divided by the opportunities to do so. Then, 3033 mares in a dat  ...[more]

Similar Datasets

| S-EPMC7233276 | biostudies-literature
| S-EPMC7460293 | biostudies-literature
| S-EPMC7341255 | biostudies-literature
| S-EPMC4093806 | biostudies-other
| S-EPMC6988787 | biostudies-literature
| S-EPMC10044062 | biostudies-literature
| S-EPMC8371709 | biostudies-literature
| S-EPMC6563486 | biostudies-literature
| S-EPMC11047459 | biostudies-literature
| S-EPMC10902133 | biostudies-literature