Umotest Umotest Effect of mting strtegies on genetic nd economic outcomes in Montbélirde diry herd MARIE BERODIER M. BROCHARD, C. DEZET TER, N. BAREILLE, V. DUCROCQ Study funded by MO3
The Montbélirde breed in Frnce Number of lcttions In 2017 Dul purpose breed 2 nd diry breed in Frnce 17.7 % of French diry cttle 388 124 lcttions recorded https://www.montbelirde.org/loclistion-ntionle-fr.html Umotest 2
2009: X- Sexed semen Umotest within herd selection intensity 3
2009: X- Sexed semen Umotest Umotest 2011: Commercil femle genotyping within herd selection intensity within herd selection ccurcy 3
2009: X- Sexed semen Umotest Umotest 2011: Commercil femle genotyping within herd selection intensity within herd selection ccurcy within herd genetic gin 3
2009: X- Sexed semen Umotest Umotest 2011: Commercil femle genotyping within herd selection intensity within herd selection ccurcy within herd genetic gin 3
2009: X- Sexed semen Umotest Umotest 2011: Commercil femle genotyping Wht is the impct of lterntive replcement nd genotyping strtegies on genetics nd economics t herd level? 4
Simultion study - Method 77-cows Montbélirde herd ECOMAST simultion progrm 5
Simultion study - Method 77-cows Montbélirde herd ECOMAST simultion progrm Dily milk production Gesttion sttus Mstitis sttus Umotest Helth sttus Culling probbility 5
Simultion study - Method 77-cows Montbélirde herd ECOMAST simultion progrm Dily milk production Gesttion sttus Mstitis sttus Umotest Helth sttus Culling probbility Psture bsed frming system with reltively high milk price 5
Simultion study - Method 77-cows Montbélirde herd ECOMAST simultion progrm Dily milk production Gesttion sttus Mstitis sttus Umotest Helth sttus Culling probbility Psture bsed frming system with reltively high milk price Femles genotyped when 15-dy old (40 ll included) Umotest 5
Simultion study - Method 15 yers of simultion 5 initiliztion yers: no genotyping, no sexed nor beef breed semen 10 yers of different strtegies -5-4 0 1 5 10 Yer 6
Simultion study - Method 15 yers of simultion 5 initiliztion yers: no genotyping, no sexed nor beef breed semen 10 yers of different strtegies -5-4 0 1 5 10 Yer Strtegies: Heifers genotyping 0 % 100 % Use of sexed semen Yes No Use of beef breed semen Yes No 6
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 No Genotyping 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 7
Breeding objective (SD units) Simultion study - Results 2,0 1,5 1,0 0,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 b ce cd No Genotyping ef d Brs with different superscripts differ significntly (Tukey test) p-vlue < 0,05 g bf 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 7
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 Genotyping 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 7
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 Conventionl semen only + Genotype 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 8
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 Sexed semen nd Crossbreeding + Genotype 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 8
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 Sexed semen nd no crossbreeding + Genotype 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 8
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 Conventionl semen nd Crossbreeding + Genotype 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 8
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Sexed semen genetic gin (+ 0.18 σ) 9
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Femle genotyping genetic gin (+ 0.07 σ) 10
Breeding objective (SD units) Simultion study - Results 2,0 1,5 Vrition in ΔG of breeding objective from yer 0 to yer 10 ce cd d b ef g bf 1,0 0,5 0,0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Use of sexed semen nd femle genotyping genetic gin 11
Totl products per cow ( ) Simultion study - Results 600 500 Vrition in totl products from yer 0 to yer 10 c c 400 300 b b b b 200 100 0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 12
Totl products per cow ( ) Simultion study - Results 600 500 Vrition in totl products from yer 0 to yer 10 c c 400 300 b b b b 200 100 0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr 12
Totl products per cow ( ) Simultion study - Results 600 500 Vrition in totl products from yer 0 to yer 10 c c 400 300 b b b b 200 100 0 P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Vrition in totl product is linked to nimls sles 12
Totl expenses per cow ( ) Simultion study - Results 210 160 110 Vrition in totl expenses from yer 0 to yer 10 b e 60 10 d d -40 c P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Rising nd reproduction costs incresed lot 13
Totl expenses per cow ( ) Simultion study - Results 210 160 110 Vrition in totl expenses from yer 0 to yer 10 b e 60 10 d d -40 c P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Rising nd reproduction costs incresed lot 13
Net mrgin per cow ( ) Simultion study - Results 400 350 300 250 200 150 100 50 0 Vrition in net mrgin from yer 0 to yer 10 c cd cd bd b b P P P P G G G G NSex-NCr Sex-Cr Sex-NCr NSex-Cr NSex-NCr Sex-Cr Sex-NCr NSex-Cr Alwys gin in net mrgin 14
Tke home messges Use of sexed semen nd femle genotyping genetic gin 15
Tke home messges Use of sexed semen nd femle genotyping genetic gin Benefits of sexed semen only strtegy depend on the mrket 15
Tke home messges Use of sexed semen nd femle genotyping genetic gin Benefits of sexed semen only strtegy depend on the mrket Long term sustinble strtegy: G sexed crossbreeding : increses genetic gin, mintins the increse in net mrgin is less sensitive to fluctutions of mrket conditions 15
Tke home messges Use of sexed semen nd femle genotyping genetic gin Benefits of sexed semen only strtegy depend on the mrket Long term sustinble strtegy: G sexed crossbreeding : increses genetic gin, mintins the increse in net mrgin is less sensitive to fluctutions of mrket conditions Dely of severl yers before observing return on investments 15
Tke home messges Use of sexed semen nd femle genotyping genetic gin Benefits of sexed semen only strtegy depend on the mrket Long term sustinble strtegy: G sexed crossbreeding : increses genetic gin, mintins the increse in net mrgin is less sensitive to fluctutions of mrket conditions Dely of severl yers before observing return on investments Interest of combining genotyping with use of sexed semen 15