Distribution of sheep litter size: a worldwide survey
Loys Bodin
(1)
,
Jérôme Raoul
(1)
,
Kim L. Bunter
(2)
,
Alma Swan
(2)
,
S. Janssens
(3)
,
L. Brito
(4)
,
E.I. Bjarnason
(5)
,
O. Keane
(6)
,
S. Salaris
(7)
,
S. Mcintyre
(8)
,
J.F. Jakobsen
(9)
,
José Luis Alabart
(10)
,
J. Folch
(10)
,
B. Lahoz
(10)
,
Enrique Fantova
,
L.F. de La Fuente
(11)
,
A. Molina
(12)
,
M.D. Perez Guzman
(13)
,
L. Mintegi
,
Sonia Maatoug
(14)
,
Joanne Coningtont
(15)
,
Gabriel Ciappesoni
(16)
,
D. Gimeno
(17)
1
GenPhySE -
Génétique Physiologie et Systèmes d'Elevage
2 UNE - University of New England
3 BIOSYST - Department of Biosystems
4 University of Guelph
5 Icelandic Agricultural Advisory Centre
6 Teagasc - Teagasc Agriculture and Food Development Authority
7 DIRPA-AGRIS Sardegna
8 Beef and Lamb New Zealand Genetics
9 NSG - Norwegian Association of Sheep and Goat Breeders
10 aragon
11 Universidad de León [León]
12 Universidad de Córdoba = University of Córdoba [Córdoba]
13 CERSYRA - Centro Regional de Seleccion y Reproduccion Animal
14 INAT - Institut National Agronomique de Tunisie
15 SRUC - Scotland's Rural College
16 INIA Las Brujas
17 Uruguayan Wool Secretariat
2 UNE - University of New England
3 BIOSYST - Department of Biosystems
4 University of Guelph
5 Icelandic Agricultural Advisory Centre
6 Teagasc - Teagasc Agriculture and Food Development Authority
7 DIRPA-AGRIS Sardegna
8 Beef and Lamb New Zealand Genetics
9 NSG - Norwegian Association of Sheep and Goat Breeders
10 aragon
11 Universidad de León [León]
12 Universidad de Córdoba = University of Córdoba [Córdoba]
13 CERSYRA - Centro Regional de Seleccion y Reproduccion Animal
14 INAT - Institut National Agronomique de Tunisie
15 SRUC - Scotland's Rural College
16 INIA Las Brujas
17 Uruguayan Wool Secretariat
Jérôme Raoul
- Fonction : Auteur
- PersonId : 744258
- IdHAL : jerome-raoul
- ORCID : 0000-0002-3140-4433
- IdRef : 223650234
Enrique Fantova
- Fonction : Auteur
L. Mintegi
- Fonction : Auteur
Résumé
Litter size (LS) in sheep (total lambs born including still born) is a categorical trait which ranges from 1 to 3 and exceptionally up to 7. A survey has been conducted on a large number of breeds from all over the world to gather the LS distribution of adult ewes per breed from 1995 to 2017 removing years with too few data. A simple analysis showed that there is a general law linking the different LS classes of a given breed to its mean prolificacy. However few breeds deviate from the standard norm; this variability will be discussed.