Our Genetics
Wilkinson Herd Bulls 2023
With the practice of running 2 herdsires with each group after AI, the Wilkinsons have worked to align their herdbulls with their needs. Each year some of the older bulls are moved out to the commercial herd or simply replaced with new herd bulls. The Spring of 2023 saw the arrival of TBGC Barcelona 100J, BGGR Kansas J046, BTBR Kachina 2032K and BTBR Whitewater 2318K. Their phenotype and genotype meshed perfectly with the Wilkinson cows, bringing that “spread” between the Calving Traits and Performance numbers, that all beef producers desire.
Wilkinson Herd Bulls – These bulls, in various combinations of 2/pasture, were used during the 2023 Breeding Season.
Name |
% |
Tattoo |
Registration |
CED EPD |
BW EPD |
WW EPD |
YW EPD |
MK EPD |
HP EPD |
PG30 EPD |
ST EPD |
REA EPD |
MB EPD |
6138 |
50%GV |
BNW 6138 |
AMGV1351071 |
23 |
-8.3 |
67 |
67 |
17 |
6 |
0.14 |
14 |
0.13 |
0.36 |
Eclipse |
47%GV |
BNW 7104 |
AMGV1388325 |
22 |
-4.1 |
52 |
86 |
11 |
4 |
3.5 |
24 |
0.5 |
0.15 |
John |
32%GV |
BNW 8009 |
AMGV1417786 |
16 |
-2.1 |
76 |
120 |
23 |
11 |
3.2 |
13 |
.54 |
.33 |
Whitewater |
50% GV |
BTBR 2318K |
AMGV1546037 |
19 | -2.2 | 70 | 118 | 33 | 3.2 | 2.1 | 14 | .70 | .86 |
Parameter |
43% GV |
DBRG 1235J |
AMGV1513779 |
19 |
-3.2 |
94 |
154 |
24 |
2.7 |
1.5 |
15 |
.8 |
.57 |
Kansas |
49% GV |
BGGR J046 |
AMGV1550133 |
17 |
-2.3 |
85 |
122 |
22 |
3.4 |
2.95 |
8 |
.65 |
.45 |
Barcelona |
81% GV |
TMGC 100J |
AMGV1537122 |
12 |
-.3 |
84 |
119 |
25 |
11.03 |
1.14 |
16 |
.92 |
.62 |
Kachina |
47% GV |
BTBR 2032K |
AMGV1546082 |
15 |
-1.7 |
78 |
133 |
34 |
69 |
.61 |
15 |
.5 |
.56 |
The Wilkinsons consider a variety of factors in their breeding and management decisions, but the rough arid environment of Southeastern Colorado is probably the most important one. Typical stocking rate is between 75-100 acres/cow, so their cows and bulls must be structurally sound in order to walk the miles they need to for water and grazing. In addition to soundness, the Wilkinsons emphasize strong maternal traits, for which Gelbviehs are known. Cows must have moderate milk production, with good teat and udder structure. Cows calve unassisted out in the pastures and the calf must get up and suck immediately, which is why teat size is so important. Predation can also be an issue so having a good mother is extremely important, as well.
When making breeding decisions, bulls are chosen for their potential maternal, performance and carcass characteristics. Because they are trying to push the envelope with performance, without sacrificing birthweight or mature size and carcass, this selection process is always a challenge. Additionally, not only do the Wilkinsons want to produce more pounds for their customers, but they also want their customers to keep their own replacement females. That is one strong characteristic of the Gelbvieh and Balancer cattle -- they are dual-purpose in that they produce outstanding mamas, as well as performance oriented steers. Bull selection for their herd sires is based on these basic principles, whether they are selected from their own herd or purchased from other Gelbvieh/Balancer breeders. Over the years, we have found that running multi-sire groups results in an almost 100% breed-up. With the size of our pastures, we realized that cows were simply not being covered; so having 2 sires has been a tremendous plus for us. The added expense of sire testing is easily covered by the increased conception rate. Plus, it was a real eye-opener for us. Many calves that they thought were out of the AI time window have tested back to their AI sire, so there is much greater confidence in what is being reported.
Calving interval is also planned around the environment. Heifers are bred to start in March, whereas the cows start in early April. The hope is to avoid the severely cold winter storms while getting closer to green grass. The Wilkinsons normally hold back 35-40 replacement heifers (registered and commercial) and develop them on a heifer development ration, then synchronize and AI breed them to calving ease sires, usually Angus or higher percentage Balancer sires. After one round of AI, they are turned out with calving ease herd sires.
Roughly 75% of the registered cows are also AI bred, allowing them to "customize" each potential calf. They generally look at three specifics: 1) the need to increase or decrease the Gelbvieh make-up in the calf, 2) the genotypical characteristics to complement the cow's EPD profile, and 3) structurally correct cattle, with some eye appeal. As with the heifers, the cows are turned out with our herdsires after one round of AI.
The Wilkinsons spend many hours, using the AGA Registry’s Progeny Calculator planning the mating of their cow herd. They start with potential AI sires for each care, matching both the predicted genotype (from the Calculator) and potential phenotype (using knowledge of each cow and heifer). After selecting the AI sire, each cow is paired with a herdsire group, also anticipating optimum genotype and phenotype profile.
All registered heifers are then AI’d in May. In 2023, they were synchronized, bred and then turned out in 2 pasture groups – each with 2 calving ease herd sires. AI Sires will also be used on Heifers in 2023, VRT Rock G501, BTBR Durant 6296D, Baldridge Movin’ On G780 and BGGR High Definition 8063E.
The cows are usually sorted into 2 AI groups of around 40-45 head each, leaving about 2 weeks between the two groups, simply for ease of management. Each group is synchronized, bred, and then turned out with herdsires – again in pasture groups of 2 bulls each. AI Sires used on cows in 2023: BNW Hombre 0128H, BNW Granger 9126G, PLA Cash Out 1J ET, JKGF Civil War E92, VRT Rock G501, CCRO Manifesto J104, BTBR Durant 6296D.