Eleven generations of selection for the duration of fertiliy in the intergeneric crossbreeding of ducks

Cheng Yu Shin, Rouvier Roger, Liu Hsiao-Lung, Huang Shang Chi, Huang Yu-Chia, Liao Chung-Wen, Liu Tai Jui-Jane, Tai Chein, Poivey Jean-Paul. 2009. Eleven generations of selection for the duration of fertiliy in the intergeneric crossbreeding of ducks. Genetics Selection Evolution, 41 (1) : 1-11.

Type d'url non précisé : http://www.gsejournal.org/content/pdf/1297-9686-41-32.pdf

Quartile : Q2, Sujet : AGRICULTURE, DAIRY & ANIMAL SCIENCE / Quartile : Q4, Sujet : GENETICS & HEREDITY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : A 12-generation selection experiment involving a selected line (S) and a control line (C) has been conducted since 1992 with the aim of increasing the number of fertile eggs laid by the Brown Tsaiya duck after a single artificial insemination (Al) with pooled Muscovy semen. On average, 28.9% of the females and 17.05% of the males were selected. The selection responses and the predicted responses showed similar trends. The average predicted genetic responses per generation in genetic standard deviation units were 0.40 for the number of fertile eggs, 0.45 for the maximum duration of fertility, and 0.32 for the number of hatched mule ducklings' traits. The fertility rates for days 2-8 after AI were 89.14% in the S line and 61.46% in the C line. Embryo viability was not impaired by this selection. The largest increase in fertility rate per day after a single Al was observed from d5 to d I I . In G I2, the fertility rate in the selected line was 9I % at d2, 94% at d3, 92% at days 3 and 4 then decreased to 81% at d8, 75% at d9, 58% at d I 0 and 42% at d I I . In contrast, the fertility rate in the control line showed an abrupt decrease from d4 (74%). The same tendencies were observed for the evolution of hatchability according to the egg set rates. It was concluded that selection for the number of fertile eggs after a single AI with pooled Muscovy semen could effectively increase the duration of the fertile period in ducks and that research should now be focused on ways to improve the viability of the hybrid mule duck embryo.

Mots-clés Agrovoc : canard

Mots-clés géographiques Agrovoc : Thaïlande

Classification Agris : L53 - Physiologie animale - Reproduction
L10 - Génétique et amélioration des animaux

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Cheng Yu Shin, Taiwan Livestock Research Institute (TWN)
• Rouvier Roger, INRA (FRA)
• Liu Hsiao-Lung, Taiwan Livestock Research Institute (TWN)
• Huang Shang Chi, Taiwan Livestock Research Institute (TWN)
• Huang Yu-Chia, Taiwan Livestock Research Institute (TWN)
• Liao Chung-Wen, Taiwan Livestock Research Institute (TWN)
• Liu Tai Jui-Jane, Taiwan Livestock Research Institute (TWN)
• Tai Chein, Southern Taiwan University of Technology (TWN)
• Poivey Jean-Paul, CIRAD-ES-UPR Systèmes d'élevage (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/549398/)

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