Table 1 Least squares means for the effect of birth season, parity and year on replacement rate and component traits at Holta Bull Dam Station
From: Genetic and non-genetic parameters of replacement rate component traits in Holstein Friesian cattle
Source | Total preg. | Proportion of birth from total pregnancy | Proportion from normal births (sex ratio) | Proportion from female calves birth | Female replacement rate from | ||||
|---|---|---|---|---|---|---|---|---|---|
Abnormal | Normal | Male Births | Female births | Died | Culled | Female births | Total Preg. | ||
Overall | 3092 | 360(0.12) | 2732(0.88) | 1435(0.525) | 1297(0.475) | 303(0.23) | 90(0.07) | 904(0.70) | 0.29 |
Season | NS | NS | NS | NS | NS | NS | NS | NS | |
Dry | 1368 | 172(0.13) | 1198(0.88) | 615(0.51) | 583(0.49) | 142(0.24) | 36(0.06) | 405(0.70) | 0.30 |
Short | 740 | 83(0.11) | 656(0.89) | 355(0.54) | 301(0.46) | 66(0.22) | 20(0.07) | 215(0.71) | 0.29 |
Long | 984 | 105(0.11) | 878(0.89) | 465(0.53) | 413(0.47) | 95(0.23) | 34(0.08) | 284(0.69) | 0.29 |
Parity | * | * | *** | * | * | NS | *** | NS | |
1 | 898 | 141(0.16) | 757(0.84) | 391(0.52) | 366(0.48) | 97(0.27) | 22(0.06) | 247(0.67) | 0.28 |
2 | 660 | 70(0.11) | 590(0.89) | 329(0.56) | 261(0.44) | 61(0.23) | 16(0.06) | 184(0.70) | 0.28 |
3 | 493 | 43(0.09) | 450(0.91) | 245(0.54) | 205(0.46) | 46(0.22) | 14(0.07) | 145(0.71) | 0.29 |
4 | 373 | 34(0.09) | 339(0.91) | 169(0.50) | 170(0.50) | 35(0.21) | 18(0.11) | 117(0.69) | 0.31 |
5 | 258 | 32(0.12) | 226(0.88) | 111(0.49) | 115(0.51) | 30(0.26) | 9(0.08) | 76(0.66) | 0.29 |
6 | 169 | 17(0.10) | 152(0.90) | 75(0.49) | 77(0.51) | 10(0.13) | 6(0.08) | 61(0.79) | 0.36 |
7 | 113 | 13(0.12) | 100(0.88) | 49(0.49) | 51(0.51) | 14(0.27) | 3(0.06) | 34(0.67) | 0.30 |
8+ | 128 | 12(0.09) | 116(0.91) | 66(0.57) | 52(0.43) | 10(0.19) | 2(0.04) | 40(0.77) | 0.32 |
Year | *** | *** | *** | *** | *** | *** | *** | *** | |
1986-88 | 70 | 4(0.06) | 66(0.94) | 38(0.58) | 28(0.42) | 0(0.0) | 0(0.0 | 28(1.0) | 0.40 |
1989 | 71 | 6(0.08) | 65(0.92) | 39(0.60) | 26(0.40) | 0(0.0) | 0(0.0) | 26(1.00) | 0.37 |
1990 | 89 | 11(0.12) | 78(0.88) | 42(0.54) | 36(0.46) | 0(0.0) | 0(0.0) | 36(1.00) | 0.40 |
1991 | 52 | 8(0.16) | 44(0.84) | 21(0.48) | 23(0.52) | 0(0.0) | 0(0.0) | 23(1.00) | 0.44 |
1992 | 39 | 7(0.19) | 32(0.81) | 12(0.37) | 20(0.63) | 0(0.0) | 0(0.0) | 20(1.00) | 0.51 |
1993 | 117 | 10(0.08) | 107(0.92) | 48(0.45) | 59(0.55) | 7(0.12) | 0(0.0) | 51(0.88) | 0.44 |
1994 | 192 | 28(0.15) | 165(0.85) | 84(0.51) | 81(0.49) | 12(0.15) | 3(0.04) | 66(0.81) | 0.34 |
1995 | 123 | 8(0.07) | 115(0.93) | 62(0.54) | 53(0.46) | 13(0.25) | 2(0.03) | 38(0.72) | 0.31 |
1996 | 143 | 19(0.13) | 124(0.87) | 69(0.56) | 55(0.44) | 4(0.07) | 1(0.02) | 50(0.91) | 0.35 |
1997 | 159 | 14(0.09) | 145(0.91) | 81(0.56) | 64(0.44) | 22(0.34) | 2(0.03) | 40(0.63) | 0.25 |
1998 | 177 | 19(0.11) | 158(0.89) | 78(0.49) | 80(0.51) | 17(0.21) | 18(0.23) | 45(0.56) | 0.25 |
1999 | 157 | 9(0.06) | 148(0.94) | 75(0.51) | 73(0.49) | 21(0.29) | 14(0.19) | 38(0.52) | 0.24 |
2000 | 200 | 19(0.10) | 181(0.90) | 100(0.55) | 81(0.45) | 15(0.19) | 10(0.12) | 56(0.69) | 0.28 |
2001 | 190 | 40(0.21) | 151(0.79) | 76(0.51) | 75(0.49) | 17(0.23) | 8(0.11) | 50(0.67) | 0.26 |
2002 | 214 | 25(0.12) | 189(0.88) | 113(0.60) | 76(0.40) | 15(0.20) | 10(0.13) | 51(0.67) | 0.24 |
2003 | 193 | 31(0.16) | 162(0.84) | 83(0.51) | 79(0.49) | 26(0.33) | 5(0.06) | 29(0.61) | 0.25 |
2004 | 175 | 20(0.11) | 155(0.89) | 80(0.52) | 75(0.48) | 20(0.27) | 8(0.11) | 47(0.63) | 0.27 |
2005 | 147 | 17(0.12) | 130(0.88) | 65(0.50) | 65(0.50) | 29(0.47) | 6(0.09) | 30(0.46) | 0.20 |
2006 | 162 | 20(0.12) | 142(0.88) | 74(0.52) | 68(0.48) | 33(0.49) | 1(0.02) | 34(0.50) | 0.21 |
2007 | 175 | 25(0.14) | 150(0.86) | 76(0.51) | 74(0.49) | 36(0.47) | 2(0.03) | 40(0.49) | 0.21 |
2008 | 86 | 4(0.05) | 82(0.95) | 38(0.46) | 44(0.54) | 14(0.32) | 0(0.0) | 30(0.68) | 0.35 |
2009 | 77 | 9(0.12) | 68(0.88) | 41(0.60) | 27(0.40) | 2(0.07) | 0(0.0) | 25(0.93) | 0.32 |
2010 | 84 | 9(0.11) | 75(89.0) | 40(0.53) | 35(0.47) | 0(0.0) | 0(0.0) | 35(1.00) | 0.42 |