ottobre 14 2021
Quick Recap - LIM
Quick Recap - Official Model
- 3-trait animal model
- trait 1: weight 30-120 days
- trait 2: weight 120-210 days
- trait 3: weight 210-365 days
\(\scriptsize y=CG + Sex + Twins + b*Age_{ind}+b^2*Age_{ind}+b*Age_{dam}+b^2*Age_{dam}+A+e\)
- Number of animals with records: 161943
- Number of parents without records: 272005
- Total number of animals: 433948
Overall Correlation
| SEX | CORR |
|---|---|
| ALL | 0.756 |
| F | 0.745 |
| M | 0.774 |
Overall Correlation by YEAR of BIRTH
Overall Correlation - ONLY ITA in INT ID
| SEX | CORR |
|---|---|
| ALL | 0.864 |
| F | 0.857 |
| M | 0.875 |
Overall Correlation by YEAR of BIRTH - ONLY ITA in INT ID
Regression
\[EBV_{ITBEEF}=a + b*EBV_{ITA}\]
| term | estimate | std.error | statistic | p.value |
|---|---|---|---|---|
| (Intercept) | 3.165 | 0.009 | 345.862 | 0 |
| ITA | 0.942 | 0.002 | 503.741 | 0 |
Trend (1)
Trend mean EBV by SEX
Trend (2) ONLY ITA in INT ID
Trend (3)
Trend sd EBV by SEX
Trend (4)
Trend REL by SEX
National vs ITBEEF REL - FEMALES
| SEX | REL_CLASS | ITA_REL_min | ITA_REL_max | avg_NAT_REL | avg_ITBEEF_REL | N |
|---|---|---|---|---|---|---|
| F | 0 | 0.00 | 0.10 | 0.04 | 0.23 | 24889 |
| F | 1 | 0.10 | 0.20 | 0.15 | 0.19 | 13144 |
| F | 2 | 0.20 | 0.30 | 0.25 | 0.26 | 23424 |
| F | 3 | 0.30 | 0.40 | 0.35 | 0.33 | 33702 |
| F | 4 | 0.40 | 0.50 | 0.44 | 0.41 | 25136 |
| F | 5 | 0.50 | 0.60 | 0.54 | 0.49 | 4320 |
| F | 6 | 0.60 | 0.69 | 0.62 | 0.57 | 243 |
| F | 7 | 0.72 | 0.72 | 0.72 | 0.72 | 1 |
National vs ITBEEF REL - MALES
| SEX | REL_CLASS | ITA_REL_min | ITA_REL_max | avg_NAT_REL | avg_ITBEEF_REL | N |
|---|---|---|---|---|---|---|
| M | 0 | 0.0 | 0.10 | 0.03 | 0.43 | 5623 |
| M | 1 | 0.1 | 0.20 | 0.16 | 0.34 | 2866 |
| M | 2 | 0.2 | 0.30 | 0.26 | 0.28 | 12590 |
| M | 3 | 0.3 | 0.40 | 0.35 | 0.35 | 24247 |
| M | 4 | 0.4 | 0.50 | 0.43 | 0.42 | 17802 |
| M | 5 | 0.5 | 0.60 | 0.54 | 0.60 | 707 |
| M | 6 | 0.6 | 0.70 | 0.65 | 0.71 | 471 |
| M | 7 | 0.7 | 0.80 | 0.75 | 0.79 | 389 |
| M | 8 | 0.8 | 0.90 | 0.84 | 0.87 | 217 |
| M | 9 | 0.9 | 0.96 | 0.92 | 0.93 | 14 |
Regression (2)
\[EBV_{ITBEEF}= b*EBV_{ITA} + REL_{class}\] Using class of rel as fixed effect
| term | estimate | std.error | statistic | p.value |
|---|---|---|---|---|
| ITA | 0.942 | 0.002 | 504.783 | 0 |
| REL_CLASS0 | 2.755 | 0.023 | 120.978 | 0 |
| REL_CLASS1 | 3.033 | 0.031 | 96.457 | 0 |
| REL_CLASS2 | 3.153 | 0.021 | 150.375 | 0 |
| REL_CLASS3 | 3.180 | 0.017 | 192.416 | 0 |
| REL_CLASS4 | 3.487 | 0.019 | 181.582 | 0 |
| REL_CLASS5 | 2.936 | 0.056 | 52.317 | 0 |
| REL_CLASS6 | 3.864 | 0.149 | 25.952 | 0 |
| REL_CLASS7 | 4.589 | 0.201 | 22.781 | 0 |
| REL_CLASS8 | 5.040 | 0.270 | 18.662 | 0 |
| REL_CLASS9 | 5.705 | 1.063 | 5.366 | 0 |
WORK COMPLETED:
Run official evaluation using data until 2017 (LR Method) - LIM
Estimated VCE & EBVs for ITA LIM WW pre-adjusting observed weight at 210. Compare results with current evaluation
2b. Run evaluation using data until 2017
Repeated point 2 including Maternal Effect
Repeated point 3 including Maternal Effect & Permanent Maternal
model: \(ADW_{210} = \text{sex + twin + HYS} + b*Age_{dam} + b^2*Age_{dam}\)
Adjusted Weight at 210 days
The following formulas were used (Lôbo, R.B., 1992. Genetic improvement program for the Nellore breed. 2th edition. Ribeirão Preto: Universidade de São Paulo.):
- \(ABW_{i} = BW_b + ADG_{a,b} * d_{i-b}\)
- \(ABW_{i} = BW_a + ADG_{a,b} * d_{a-i}\)
Where ABW was the adjusted weight at time i (i=210); BW was the recorded weight before (b) or after (a) time i; ADG was the average daily gain estimated between time a and b; and d was the distance between time i and time b or between time a and time i.
Preliminary Results - Correlation - Males
| EBV210mt | EBV210adj | EBV210adjd | EBV210adjd_mpe | |
|---|---|---|---|---|
| EBV210mt | 1.00 | 0.83 | 0.61 | 0.63 |
| EBV210adj | 0.83 | 1.00 | 0.75 | 0.76 |
| EBV210adjd | 0.61 | 0.75 | 1.00 | 1.00 |
| EBV210adjd_mpe | 0.63 | 0.76 | 1.00 | 1.00 |
EBV210mt = Official EBV , EBV210adj = Adjusted WW210
EBV210adjd = Adjusted WW210 + Mat
EBV210adjd_mpe = Adjusted WW210 + MAt + Matpe
Preliminary Results - Correlation - Females
| EBV210mt | EBV210adj | EBV210adjd | EBV210adjd_mpe | |
|---|---|---|---|---|
| EBV210mt | 1.00 | 0.82 | 0.46 | 0.48 |
| EBV210adj | 0.82 | 1.00 | 0.56 | 0.57 |
| EBV210adjd | 0.46 | 0.56 | 1.00 | 1.00 |
| EBV210adjd_mpe | 0.48 | 0.57 | 1.00 | 1.00 |
EBV210mt = Official EBV , EBV210adj = Adjusted WW210
EBV210adjd = Adjusted WW210 + Mat
EBV210adjm = Adjusted WW210 + MAt + Matpe
Genetic Trend based on model & trait 1
EBV210mt = Official EBV , EBV210adj = Adjusted WW210
EBV210adjd = Adjusted WW210 + Mat
EBV210adjm = Adjusted WW210 + MAt + Matpe