Index IBOVAL 2013: Charolais Optimal bulls at the top

The IBOVAL 2013 indexing has reinforced, on the national level, the position of the Genes Diffusion ES progeny tested bulls brought to the market.

Indeed, all leading positions are occupied by the Charolais Optimal bulls with 8 out of the top 10 French bulls for the production of weanlings and fattening of young males and the top 10 in Maternal Traits.

Production weanlings
Ranking Bulls ISEVR
1st UNIBLOC 131
2nd SAUMUR 125
3rd BASTION 124
4th SIDNEY 124
4th TRYPHON 124
6th CARNOT SC 121
8th VALDEVIE 120
10th ICARE 120
Fattening young cattle
Ranking Bulls IABjbf
1st VIZIR SC 140
2nd UNIBLOC 129
3rd ICARE 128
5th SYLVANER 127
7th VEZELAY 125
8th VIRGIL SC 125
8th LE REBEL 125
10th TRYPHON 124
Renewal
Ranking Bulls IVMAT
1st UNIBLOC 126
2nd TAMILLY 125
3rd VTTOZ 125
4th SAUMUR 124
4th POPULAIR 124
4th TRYPHON 124
7th SIDNEY 121
8th VIZIR SC 120
8th UNTEL 120
8th OZONE 120

The best tested French bulls brought to the market (elementary and synthetic indexes)

  • Fidji, fille de UNIBLOCISEVR (total merit index for direct effect at weaning) : UNIBLOC 131
    • IFNAIS (Easy birth of calf) : LORSINI 121
    • CRsev (growth capacity) : BASTION 120
    • DMsev (muscle development) : RESSORT 121
    • DSsev (frame development) : UGNY 126
  • IVMAT (total merit index for maternal traits) : UNIBLOC 126
    • AVEL (calving ability) : UNICO SC 132
    • ALait (maternal effect on weaning weight) : VIGNY 120
  • IABjbf : VIZIR SC 140
  • CRpsf : TEMPO 122

Here again, Charolais Optimal bulls enable to maximize the genetic progress on the growth-morphology (from highly developed to very muscled) as well as for the complete bull in fattening or renewal (maternal traits strongly marked).

Index at weaning ISEVR (Total merit index for direct effect at weaning) and calves on the farm

The massive arrival of new calves evaluated at weaning strengthens the reliability of the best bulls.

Bulls ISEVR Number of evaluated weaned calves Number of herds
UNIBLOC
131
5 362
1 129
SAUMUR
125
4 294
1 068
VIRGIL SC
118
3 228
764
TAMILLY
114
2 269
693
112
2 671
755
POPULAIR
112
14 354
1 739
108
8 972
1 188

No surprise on the side of ISEVR, bulls confirm their potential evaluated during testing with an average of 160 to 200 calves evaluated at weaning and a reliability of 0.91minimum.

Remarkable evolutions in AVel (calving ability)

The variations on this trait are numerous and strong. They are linked to the methodological change in the standardization of genetic values (standard deviation of AVel moves from 8.4 pts in 2012 to 10.5 pts in 2013). Indexes are more dispersed but the hierarchy is respected.

As an example, TOULON increased by 14 points and reached 128 AVel.

Small changes (positive or negative), 2 points on average, do not mean that the bulls are better or worse compared to previous indexing.

Milk ability refines campaign after campaign

The arrival of numerous daughters makes the ALait (Maternal effect on weaning weight) index more reliable for bulls already introduced on the market. Significant differences are noted on bulls which had ALait index on a limited number of daughters, which was the case of bulls evaluated in the Agonges station.

  • SIDNEY 103 (+ 10) +583 daughters
  • TEMPO 107 (+ 9) +276 daughters
  • SAUMUR 106 (+6) +502 daughters
  • SUEDOIS 114 (+5) +721 daughters
  • VEZELAY 106 (+5) +54 daughters
  • TOULON 101 (+4) +70 daughters
  • RETHEL 113 (+3) +338 daughters
  • NOBELIX 107 (+3) +219 daughters
  • ULYSSE 104 (+3) +122 daughters

IABjbf (Total merit index for beef ability)

Taureau Virgil SCAs well as for previous indexes, the massive arrival of data on the slaughtering of young males in the indexing chain enables to make IABjbf outputs of young bulls launched on the market in 2009 more reliable:

  • VIRGIL SC 125 (+ 11) +311 JB (young male slaughtered)
  • VIZIR SC 140 (+11) +58 JB
  • SISTERON 120 (+10) +605 JB
  • SYLVANER 127 (+6) +335 JB
  • UNIBLOC 129 +567 JB
  • OZONE 116 ( + 4) +19 JB

With a record index of 140 in IABjbf, VIZIR SC becomes the most profitable bull to interest young males feeders with a gain of carcass over 115 €.

All these developments strengthen the confidence of farmers in the winning choice of Charolais Optimal bulls and this regardless of their production system.

AVAILABLE EMBRYOS FOR SALE

Book your embryos on line

Embryos

 

Access to the available embryos