Growth ability of Czech Fleckvieh bulls in modern cattle fattening stable

Figures & data

Table 1. Composition of feed ration for bulls during fattening.

Components	Up to 9 months of age – the requirement for a piece (kg/day)	Above 9 months of age – the requirement for a piece (kg/day)
Clover haylage	1.2
Corn silage	2.7	11
Pea silage	1	3
Meadow hay	0.2
Molasses		0.5
Feed mixture	3	4
Basic feed ration	5.1	14.5
Basic feed ration + feed mixture	8.1	18.5

Table 2. Composition of feed mixture for bulls during fattening.

Components	Up to 9 months of age – the requirement for a piece (kg/day)		Above 9 months of age – the requirement for a piece (kg/day)
	kg	%	kg	%
Wheat scrap	1.1	35	1.6	40
Barley scrap	0.55	19.9	0.8	20
Rapeseed extracted meal 32% NS	0.45	15	0.4	10
PETAVIT	0.15	5
Sunflower extr. Scrap partially peeled	0.75	25	0.8	20
Feed salt	0.003	0.1	0.02	0.5
Ground limestone			0.08	2
TAURUS PLUS			0.3	7.5

Figure 1. Growth ability development of bulls in fattening process grouped based on their bull sire.

Table 3. Evaluation of growth curve for bulls based on breeding line of bull sire.

Breeding line of bull sire	Regression equation	r^2	P
AMT	y = –33.351 + 1.581 × age –0.0006 × age^2	0.98	<0.001
HG	y = –29.239 + 1.437 × age –0.0004 × age^2	0.97	<0.001
HCH	y = –57.423 + 1.651 × age –0.0006 × age^2	0.98	<0.001
MOR	y = –25.62 + 1.427 × age –0.0004 × age^2	0.98	<0.001
RAD	y = –87.511 + 2.017 × age –0.0011 × age^2	0.98	<0.001

r² … coefficient of determination for regression model equation; P … statistical significance for regression model equation.

Table 4. Evaluation of growth ability of fattened Czech Fleckvieh bulls for standardized ages and weight gains.

Effect	groups	LW90 (kg)	LW180 (kg)	LW365 (kg)	LW540 (kg)	LW600 (kg)	ADG from birth (g)	ADG in fattening (g)
		LSM ± SELSM	LSM ± SELSM	LSM ± SELSM	LSM ± SELSM	LSM ± SELSM	LSM ± SELSM	LSM ± SELSM
Birth month	June	113.84 ± 6.803	216.21 ± 8.225	426.65 ± 16.619	625.71 ± 26.026	693.96 ± 29.335	1108.71 ± 48.517	1137.48 ± 56.886
	July	111.96 ± 3.721	208.17 ± 4.499	405.93 ± 9.091^a	592.99 ± 14.236^a	657.13 ± 16.046^a	1047.26 ± 26.539^a	1068.97 ± 31.117^a
	August	107.79 ± 3.671	218.44 ± 4.438	445.88 ± 8.968	661.03 ± 14.043^b	734.80 ± 15.829^b	1173.84 ± 26.179^b	1229.44 ± 30.695^b
	September	113.85 ± 5.009	228.10 ± 6.056	462.93 ± 12.237^b	685.07 ± 19.163^b	761.24 ± 21.600^b	1215.12 ± 35.724^b	1269.39 ± 41.886^b
	October	124.41 ± 6.309	235.76 ± 7.628	464.64 ± 15.413	681.15 ± 24.137	755.38 ± 27.206	1204.01 ± 44.995	1237.19 ± 52.757
Group of peers	A	121.48 ± 5.731^a	230.96 ± 6.929^a	456.00 ± 14.001	668.87 ± 21.926	741.86 ± 24.713	1183.06 ± 40.873	1216.42 ± 47.924
	B	119.99 ± 8.511	239.42 ± 10.290^a	484.91 ± 20.792^a	717.13 ± 32.561	796.75 ± 36.700	1272.30 ± 60.698	1326.97 ± 71.169
	C	117.19 ± 3.706^A	226.66 ± 4.481^A	451.69 ± 9.054^a	664.55 ± 14.178^a	737.54 ± 15.981^a	1175.34 ± 26.431	1216.37 ± 30.990
	D	120.82 ± 5.165^C,c	220.02 ± 6.244^a	423.92 ± 12.617	616.79 ± 19.758	682.92 ± 22.270	1087.20 ± 36.832	1102.15 ± 43.186
	E	128.21 ± 5.698^C,c	237.34 ± 6.889^C,c	461.68 ± 13.921	673.90 ± 21.800	746.65 ± 24.572	1191.74 ± 40.639	1212.64 ± 47.650
	F	102.00 ± 3.982^d	201.85 ± 4.814^B,d	407.09 ± 9.728^b	601.24 ± 15.234^b	667.81 ± 17.170^b	1065.80 ± 28.398	1109.44 ± 33.297
	G	90.89 ± 5.274^B,D,b	193.08 ± 6.376^B,b,d	403.14 ± 12.884	601.85 ± 20.177	669.97 ± 22.741	1073.06 ± 37.612	1135.45 ± 44.100
Breeding line of bull sire	AMT	121.04 ± 2.717^a	227.21 ± 3.285	445.44 ± 6.637	651.87 ± 10.394	722.65 ± 11.715	1153.46 ± 19.376	1179.62 ± 22.718
	HCH	110.37 ± 3.627	217.66 ± 4.385	438.22 ± 8.861	646.86 ± 13.876	718.39 ± 15.640	1146.69 ± 25.868	1192.21 ± 30.330
	HG	109.85 ± 2.529^b	216.49 ± 3.057	435.69 ± 6.177	643.05 ± 9.674	714.14 ± 10.903	1139.63 ± 18.033	1184.88 ± 21.144
	MOR	111.42 ± 3.698	219.77 ± 4.471	442.49 ± 9.034	653.17 ± 14.147	725.41 ± 15.945	1157.86 ± 26.371	1203.90 ± 30.920
	RAD	119.17 ± 4.461	225.54 ± 5.393	444.18 ± 10.898	651.00 ± 17.066	721.92 ± 19.236	1151.29 ± 31.814	1181.85 ± 37.302

ADG … average daily gain; LW90 … live weight at 90 days of age; LW180 … live weight at 180 days of age; LW365 … live weight at 365 days of age; LW540 … live weight at 540 days of age; LW600 … live weight at 600 days of age; LSM … least square means; SELSM … standard error of least square means.

Different letters in columns within group mean statistical significance A–B, B–C … P < 0.01; a–b, b–c … P < 0.05.