Growth Charts for Dairy Heifers
Introduction
Heifer growth is often compared to breed standards to determine 'normal' progress. We designed breed-specific, printable Growth Charts that may be used to plot heifer growth by hand. The charts are based on the results of measuring a large number of heifers of various breeds throughout the United States during 1991 and 1992. Most of the data was collected from herds in which the average age at first calving was slightly greater than 24 months. As a result, the heifers probably were smaller for any given age than those found on today's well-managed dairy farms that calve heifers at 22 to 24 months of age.
The Holstein heifer growth charts indicate several percentiles of the U.S. population, allowing a producer to compare an individual heifer to all others and to set growth goals. Keeping a majority of heifers near the 75th percentile and the entire herd between the median and the 95th percentile is an achievable goal.
For all other breeds, the recommended growth ranges shown are between the average and the top 67th percentile of the population. To achieve early calving (24 months or less) and high production potential, individual heifers should fall near the top of or slightly above the range shown.
Holstein Growth Chart
Holstein Heifer Growth
U.S. Holsteins Weight by Month of Age
U.S. Holsteins Withers Height by Month of Age
Table 1. Body weight [BW] (pounds) and withers height [WH] (inches) of U.S. Holstein heifers as measured in the National Dairy Heifer Evaluation Project (1991-92). For each age, percentile data1 are presented to show the range of performance observed. Recommended ranges are between the 75th and 95th percentiles.
Age (months) |
BW 5th | BW 25th | BW 50th | BW 75th | BW 95th | WH 5th | WH 25th | WH 50th | WH 75th | WH 95th |
---|---|---|---|---|---|---|---|---|---|---|
1 | 82 | 102 | 119 | 136 | 143 | 29 | 30 | 31 | 33 | 33 |
2 | 113 | 149 | 161 | 189 | 238 | 30 | 32 | 33 | 34 | 37 |
3 | 149 | 182 | 211 | 234 | 284 | 31 | 34 | 35 | 36 | 38 |
4 | 189 | 234 | 258 | 284 | 339 | 33 | 35 | 36 | 38 | 40 |
5 | 218 | 275 | 311 | 339 | 411 | 34 | 37 | 38 | 39 | 42 |
6 | 266 | 320 | 369 | 422 | 480 | 36 | 38 | 40 | 41 | 44 |
7 | 301 | 369 | 422 | 468 | 542 | 37 | 40 | 41 | 43 | 45 |
8 | 330 | 422 | 468 | 530 | 603 | 38 | 41 | 43 | 44 | 47 |
9 | 379 | 468 | 530 | 596 | 705 | 39 | 42 | 43 | 45 | 47 |
10 | 422 | 517 | 575 | 653 | 776 | 41 | 43 | 45 | 46 | 49 |
11 | 445 | 556 | 638 | 712 | 776 | 42 | 44 | 46 | 47 | 49 |
12 | 504 | 596 | 682 | 760 | 843 | 43 | 45 | 47 | 48 | 51 |
13 | 504 | 660 | 728 | 809 | 913 | 43 | 46 | 47 | 49 | 51 |
14 | 542 | 697 | 776 | 878 | 1026 | 44 | 47 | 48 | 50 | 52 |
15 | 582 | 744 | 843 | 931 | 1067 | 43 | 47 | 49 | 51 | 53 |
16 | 653 | 826 | 913 | 988 | 1096 | 46 | 48 | 50 | 51 | 53 |
17 | 682 | 860 | 931 | 1026 | 1191 | 46 | 49 | 50 | 52 | 54 |
18 | 744 | 895 | 969 | 1066 | 1191 | 47 | 49 | 51 | 52 | 54 |
19 | 776 | 913 | 1007 | 1086 | 1279 | 48 | 50 | 51 | 52 | 54 |
20 | 776 | 950 | 1066 | 1170 | 1302 | 47 | 50 | 51 | 53 | 57 |
21 | 792 | 988 | 1086 | 1191 | 1372 | 48 | 50 | 52 | 54 | 56 |
22 | 843 | 1026 | 1148 | 1235 | 1420 | 49 | 51 | 52 | 54 | 57 |
23 | 809 | 1066 | 1148 | 1279 | 1420 | 49 | 51 | 53 | 54 | 57 |
24 | 776 | 1026 | 1170 | 1301 | 1545 | 48 | 52 | 53 | 55 | 57 |
Average age at first calving 25.9 ± 0.1.
1Percentiles describe the percentage of observations that fall below that level; for example, 25% of the heifers at a given age weighed less than the value listed under the 25th column. The 50th percentile is the median; half of the observations fall below this value and half fall above it.
Table 2. Recommended range of hip height and width for Holstein heifers.
Age (months) |
Hip Height (inches) |
Hip Height (inches) |
Hip Width (inches) |
Hip Width (inches) |
---|---|---|---|---|
2 | 36.0 | 39.5 | 7.0 | 8.0 |
4 | 39.0 | 42.0 | 9.0 | 10.0 |
6 | 42.0 | 44.5 | 11.0 | 12.0 |
8 | 44.0 | 47.0 | 12.5 | 13.5 |
10 | 46.0 | 49.0 | 13.5 | 15.0 |
12 | 48.0 | 51.0 | 15.25 | 16.5 |
14 | 49.5 | 52.5 | 16.5 | 17.5 |
16 | 51.0 | 53.5 | 17.5 | 18.5 |
18 | 52.0 | 54.5 | 18.5 | 19.5 |
20 | 53.0 | 55.5 | 19.25 | 20.25 |
22 | 53.0 | 55.5 | 20.0 | 20.75 |
Data compiled from U.S. and Pennsylvania Holsteins.
Range represents the average and 1 standard deviation above the average.
Jersey Growth Chart
Jersey Heifer Growth
Table 1. Recommended range of body weight and withers height for Jersey heifers.
Age (months) |
Body Weight (pounds) |
Body Weight (pounds) |
Withers Height (inches) |
Withers Height (inches) |
---|---|---|---|---|
1 | 93 | 108 | 29 | 32 |
2 | 122 | 146 | 30 | 33 |
3 | 155 | 177 | 32 | 34 |
4 | 183 | 217 | 34 | 36 |
5 | 233 | 278 | 35 | 38 |
6 | 259 | 321 | 36 | 39 |
7 | 303 | 362 | 38 | 40 |
8 | 335 | 412 | 39 | 41 |
9 | 373 | 436 | 40 | 42 |
10 | 391 | 483 | 40 | 42 |
11 | 428 | 499 | 41 | 43 |
12 | 471 | 548 | 42 | 44 |
13 | 500 | 571 | 43 | 45 |
14 | 535 | 602 | 44 | 45 |
15 | 565 | 640 | 44 | 46 |
16 | 583 | 661 | 45 | 46 |
17 | 609 | 696 | 45 | 47 |
18 | 639 | 753 | 45 | 47 |
19 | 651 | 769 | 46 | 47 |
20 | 698 | 813 | 46 | 48 |
21 | 719 | 827 | 47 | 48 |
22 | 758 | 860 | 47 | 49 |
23 | 760 | 878 | 48 | 49 |
24 | 790 | 893 | 48 | 50 |
Data from the National Dairy Heifer Evaluation Project (1991-92). Heifers in this survey had an average age at first calving of 24.9 ± 1.8 months.
Recommended ranges represent the 50th to 67th percentile. Percentiles describe the percentage of observations that fall below that level.
Brown Swiss Growth Chart
Brown Swiss Heifer Growth
Table 1. Recommended range of body weight and withers height for Brown Swiss heifers.
Age | Body Weight (pounds) |
Body Weight (pounds) |
Withers Height (inches) |
Withers Height (inches) |
---|---|---|---|---|
1 | 134 | 163 | 32 | 34 |
2 | 187 | 223 | 34 | 36 |
3 | 240 | 283 | 36 | 38 |
4 | 293 | 343 | 37 | 40 |
5 | 345 | 403 | 39 | 42 |
6 | 396 | 462 | 40 | 44 |
7 | 447 | 521 | 42 | 45 |
8 | 498 | 580 | 43 | 46 |
9 | 548 | 637 | 44 | 48 |
10 | 597 | 694 | 45 | 49 |
11 | 645 | 750 | 46 | 50 |
12 | 693 | 805 | 47 | 51 |
13 | 739 | 859 | 48 | 52 |
14 | 785 | 912 | 49 | 52 |
15 | 829 | 963 | 49 | 53 |
16 | 872 | 1013 | 50 | 54 |
17 | 914 | 1061 | 50 | 54 |
18 | 955 | 1107 | 51 | 55 |
19 | 994 | 1152 | 51 | 55 |
20 | 1032 | 1194 | 52 | 56 |
21 | 1068 | 1235 | 52 | 56 |
22 | 1103 | 1273 | 52 | 56 |
23 | 1136 | 1309 | 53 | 57 |
24 | 1167 | 1343 | 53 | 57 |
25 | 1197 | 1374 | 53 | 57 |
from the National Dairy Heifer Evaluation Project (1991-92). Heifers in this survey had an average age at first calving of 27.0 ± 1.7 months.
Recommended ranges represent the 50th to 67th percentile. Percentiles describe the percentage of observations that fall below that level.
Guernsey Growth Chart
Guernsey Heifer Growth
Table 1. Recommended range of body weight and withers height for Guernsey heifers.
Age (months) |
Body Weight (pounds) |
Body Weight (pounds) |
Withers Height (inches) |
Withers Height (inches) |
---|---|---|---|---|
1 | 122 | 143 | 31 | 33 |
2 | 166 | 193 | 33 | 35 |
3 | 203 | 233 | 35 | 37 |
4 | 255 | 299 | 37 | 38 |
5 | 299 | 354 | 38 | 41 |
6 | 366 | 434 | 40 | 42 |
7 | 384 | 448 | 41 | 43 |
8 | 433 | 503 | 42 | 44 |
9 | 482 | 568 | 43 | 47 |
10 | 511 | 588 | 44 | 46 |
11 | 574 | 662 | 45 | 47 |
12 | 576 | 674 | 46 | 48 |
13 | 643 | 756 | 46 | 48 |
14 | 696 | 803 | 47 | 49 |
15 | 740 | 866 | 48 | 50 |
16 | 779 | 899 | 49 | 51 |
17 | 830 | 950 | 50 | 52 |
18 | 864 | 1001 | 50 | 52 |
19 | 900 | 1015 | 51 | 52 |
20 | 914 | 1046 | 51 | 53 |
21 | 967 | 1112 | 51 | 53 |
22 | 996 | 1123 | 52 | 54 |
23 | 1025 | 1177 | 52 | 54 |
24 | 1026 | 1178 | 52 | 55 |
Data from the National Dairy Heifer Evaluation Project (1991-92). Heifers in this survey had an average age at first calving of 26.2 ± 2.0 months.
Recommended ranges represent the 50th to 67th percentile. Percentiles describe the percentage of observations that fall below that level.
Ayrshire Growth Chart
Ayrshire Heifer Growth
Table 1. Recommended range of body weight and withers height for Ayrshire heifers.
Age (months) |
Body Weight (pounds) |
Body Weight (pounds) |
Withers Height (inches) |
Withers Height (inches) |
---|---|---|---|---|
1 | 131 | 154 | 31 | 32 |
2 | 177 | 205 | 32 | 34 |
3 | 223 | 256 | 34 | 36 |
4 | 269 | 307 | 36 | 38 |
5 | 315 | 357 | 37 | 39 |
6 | 360 | 407 | 39 | 41 |
7 | 405 | 457 | 40 | 42 |
8 | 450 | 506 | 41 | 43 |
9 | 494 | 554 | 42 | 44 |
10 | 538 | 602 | 43 | 45 |
11 | 581 | 650 | 44 | 46 |
12 | 624 | 697 | 45 | 47 |
13 | 666 | 743 | 46 | 48 |
14 | 707 | 789 | 46 | 48 |
15 | 748 | 834 | 47 | 49 |
16 | 787 | 878 | 48 | 49 |
17 | 826 | 922 | 48 | 50 |
18 | 864 | 965 | 48 | 50 |
19 | 901 | 1007 | 49 | 50 |
20 | 937 | 1049 | 49 | 51 |
21 | 972 | 1089 | 49 | 51 |
22 | 1006 | 1129 | 50 | 52 |
23 | 1039 | 1168 | 50 | 52 |
24 | 1070 | 1206 | 50 | 52 |
25 | 1101 | 1244 | 51 | 53 |
Data from the National Dairy Heifer Evaluation Project (1991-92). Heifers in this survey had an average age at first calving of 27.6 ± 1.8 months.
Recommended ranges represent the 50th to 67th percentile. Percentiles describe the percentage of observations that fall below that level.
Milking Shorthorn Growth Chart
Milking Shorthorn Heifer Growth
Table 1. Recommended range of body weight and withers height for Milking Shorthorn heifers.
Age (months) |
Body Weight (pounds) |
Body Weight (pounds) |
Withers Height (inches) |
Withers Height (inches) |
---|---|---|---|---|
1 | 128 | 160 | 31 | 32 |
2 | 175 | 210 | 33 | 34 |
3 | 223 | 262 | 34 | 36 |
4 | 272 | 315 | 36 | 38 |
5 | 320 | 370 | 37 | 39 |
6 | 369 | 425 | 37 | 41 |
7 | 418 | 482 | 40 | 42 |
8 | 467 | 539 | 41 | 43 |
9 | 515 | 596 | 42 | 44 |
10 | 564 | 653 | 43 | 45 |
11 | 611 | 709 | 44 | 46 |
12 | 658 | 765 | 45 | 47 |
13 | 705 | 820 | 46 | 47 |
14 | 750 | 874 | 46 | 48 |
15 | 794 | 926 | 47 | 49 |
16 | 838 | 977 | 47 | 49 |
17 | 880 | 1025 | 48 | 50 |
18 | 920 | 1071 | 48 | 50 |
19 | 959 | 1115 | 49 | 50 |
20 | 997 | 1155 | 49 | 51 |
21 | 1033 | 1192 | 49 | 51 |
22 | 1066 | 1226 | 50 | 51 |
23 | 1098 | 1256 | 50 | 52 |
24 | 1128 | 1281 | 50 | 52 |
25 | 1155 | 1303 | 51 | 52 |
Data from the National Dairy Heifer Evaluation Project (1991-92). Heifers in this survey had an average age at first calving of 26.5 ± 1.6 months.
Recommended ranges represent the 50th to 67th percentile. Percentiles describe the percentage of observations that fall below that level.