An attempt of using public ambient temperature data in swine genetic evaluation for litter-size traits at birth in japan

被引：5

作者：

Hara, Hitomi ^{[1
]}

Ogawa, Shinichiro ^{[1
,4
]}

Ohnishi, Chika ^{[2
,5
]}

Ishii, Kazuo ^{[3
,4
]}

Uemoto, Yoshinobu ^{[1
]}

Satoh, Masahiro ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Agr Sci, Sendai, Miyagi 9808572, Japan

[2] Natl Livestock Breeding Ctr, Miyazaki Stn, Kobayashi, Miyazaki 8860004, Japan

[3] NARO, Inst Livestock & Grassland Sci, Div Anim Breeding & Reprod, Tsukuba, Ibaraki 3050901, Japan

[4] NARO, Inst Livestock & Grassland Sci, Div Meat Anim & Poultry Res, Tsukuba, Ibaraki 3050901, Japan

[5] Natl Livestock Breeding Ctr, Okazaki Stn, Okazaki, Aichi 4443161, Japan

来源：

ANIMAL PRODUCTION SCIENCE | 2022年 / 62卷 / 15期

关键词：

genetic parameter estimation; heat; meteorological observation data; number born alive; number stillborn; on- and off-farm ambient temperature; pig breeding; season; NUMBER BORN ALIVE; HEAT-STRESS; REPRODUCTIVE-PERFORMANCE; OUTDOOR CLIMATE; WEANING-TO-1ST-MATING INTERVAL; ENVIRONMENTAL-TEMPERATURE; OVARIAN-FUNCTION; DAILY GAIN; PIGS; GILTS;

D O I：

10.1071/AN21463

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Context Large-scale genetic evaluation is promising for efficiently improving sow lifetime productivity, and therefore, a reasonable operational model should be pursued to analyse phenotypic data collected from around Japan, where unique seasonality exists. However, the information on establishing the model is currently insufficient. Aims. To obtain the fundamental information on using ambient temperature information in developing the model for routine swine genetic evaluation in Japan, by analysing total number born, number born alive, and number stillborn collected at a Japanese farm, together with off-farm ambient temperature measured at the nearest Automated Meteorological Data Acquisition System station. Methods. Five repeatability animal models were exploited, considering the effects of farrowing season (Model 1), farrowing month (Model 2), quadratic regressions of daily maximum ambient temperature of farrowing day (Model 3), season and temperature (Model 4), or month and temperature (Model 5). Key results. Patterns of the effects of daily maximum temperature of farrowing day estimated using Model 3 were similar to those of farrowing season by Model I and those of farrowing month by Model 2. Adding the effect of daily maximum temperature of farrowing day (Models 4 and 5) could explain phenotypic variability better than only considering either of farrowing season or month (Models I and 2). Estimated heritability was stable among the models and the rank correlation of predicted breeding values among models was >0.98 for all traits. Conclusions. The results indicated the possibility that using public ambient temperature can capture a large part of the phenotypic variability in litter-size traits at birth caused by seasonality in Japan. Implications. This study could support the availability of public meteorological data in the development of flexible operational models for future swine genetic evaluation in Japan.

引用

页码：1488 / 1500

页数：13

共 1 条

[1] A comparison of accuracy validation methods for genomic and pedigree-based predictions of swine litter size traits using Large White and simulated data
Putz, A. M.
Tiezzi, F.
Maltecca, C.
Gray, K. A.
Knauer, M. T.
JOURNAL OF ANIMAL BREEDING AND GENETICS, 2018, 135 (01) : 5 - 13

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