Anim Biosci > Volume 32(2); 2019 > Article |
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Weaning treatment1) | Number of lambs | Treatment description |
---|---|---|
2015 | ||
HerbEWA | 44 | Early weaning at 58 after the mid-point if lambing (L58) with unrestricted allowance of herb-clover mix (plantain, red clover and white clover) until conventional weaning at L95 |
HerbCWB | 42 | Lambs+dams offered an unrestricted allowance of herb-clover mix until conventional weaning at L95 |
GrassCWC | 44 | Lambs+dams offered unrestricted allowance of grass-clover pasture (Ryegrass, red clover and white clover) until conventional weaning at L95 |
2016 | ||
HerbEWD | 44 | Early weaning at L51with unrestricted allowance of herb-clover mix until conventional weaning at L93 |
HerbCWE | 42 | Lambs+dams offered an unrestricted allowance of herb-clover mix until conventional weaning at L93 |
GrassCWF | 38 | Lambs+dams offered unrestricted allowance of grass-clover pasture until conventional weaning at L93 |
Restricted-GrassCWG | 40 | Lambs+dams offered with restricted allowance of grass-clover pasture until conventional weaning at L93 |
EW, early weaning at 58 and 51 days after the midpoint of lambing in 2015 and 2016, respectively; CW, conventional weaning at 95 and 93 days after the midpoint of lambing in 2015 and 2016, respectively; Unrestricted allowance, >1,200 kg dry matter/ha; Restricted allowance, <1,200 kg dry matter/ha.
1) Early weaned ewes in A were managed with unweaned ewes and lambs in C in 2015 until conventional weaning. Early weaned ewes in D were managed with unweaned ewes and lambs in G in 2016 until conventional weaning. Early weaned lambs in A and D were managed with unweaned ewes and lambs in B and E in 2015 and 2016, respectively.
Herbage1) | CP (%) | ADF (%) | DMD (%) | ME (MJ/kg) | |
---|---|---|---|---|---|
2015 | |||||
Herb-clover mixA | L58 | 15.9b±1.1 | 19.9a±1.1 | 73.0e±0.5 | 10.1c±0.1 |
L81 | 14.7b±1.1 | 31.0c±1.1 | 69.2c±0.5 | 10.1c±0.1 | |
L95 | 15.0b±1.1 | 23.3b±1.1 | 73.0e±0.5 | 10.7e±0.1 | |
Grass-clover pastureB | L58 | 22.6c±1.1 | 21.4ab±1.1 | 71.0d±0.5 | 10.4d±0.1 |
L81 | 15.3b±1.1 | 32.5c±1.1 | 64.4b±0.5 | 9.7b±0.1 | |
L95 | 12.1a±1.1 | 35.0d±1.1 | 59.5a±0.5 | 8.9a±0.1 | |
2016 | |||||
Herb-clover mixC | L51 | 16.4b±1.2 | 25.5a±2.5 | 70.0e±1.0 | 10.2e±0.3 |
L69 | 13.1a±1.2 | 37.6d±2.5 | 63.3abc±1.0 | 9.1d±0.3 | |
L82 | 12.8a±1.2 | 38.2d±2.5 | 62.0a±1.0 | 8.5bcd±0.3 | |
Grass-clover pastureD | L51 | 20.2cd±1.2 | 28.3ab±2.5 | 66.1d±1.0 | 9.1d±0.3 |
L69 | 17.9bc±1.2 | 35.6cd±2.5 | 62.5ab±1.0 | 8.2ab±0.3 | |
L82 | 16.4b±1.2 | 27.5ab±2.5 | 64.2bcd±1.0 | 9.0cd±0.3 | |
Restricted-Grass-clover pastureE | L51 | 16.4b±1.2 | 34.7cd±2.9 | 61.7a±1.0 | 7.5a±0.3 |
L69 | 20.6d±1.2 | 31.0bc±2.5 | 63.2abc±1.0 | 8.5bcd±0.3 | |
L82 | 19.6cd±1.2 | 38.3d±2.5 | 64.6cd±1.0 | 8.2abc±0.3 |
SEM, standard error of the mean; CP, crude protein; ADF, acid detergent fibre; DMD, dry matter digestibility; ME, metabolisable energy content; L, days after the midpoint of lambing.
Weaning treatment1) | n | Live weight (kg) | n | Live weight (kg) | n | Live weight (kg) |
---|---|---|---|---|---|---|
2015 | L58 | L81 | L95 | |||
HerbEWA | 44 | 22.5±0.3a | 43 | 27.8±0.3b | 44 | 31.8±0.3d |
HerbCWB | 42 | 22.5±0.3a | 42 | 29.8±0.3c | 41 | 34.5±0.3e |
GrassCWC | 44 | 22.7±0.3a | 42 | 30.0±0.3c | 42 | 34.2±0.3e |
2016 | L51 | L82 | L93 | |||
HerbEWD | 44 | 19.9±0.3a | 43 | 28.4±0.3d | 42 | 30.0±0.3e |
HerbCWE | 42 | 20.0±0.3a | 39 | 30.5±0.3e | 38 | 33.0±0.3f |
GrassCWF | 38 | 19.7±0.3a | 38 | 28.5±0.3d | 35 | 30.8±0.3e |
Restricted-GrassCWG | 40 | 19.5±0.3a | 39 | 24.8±0.3b | 39 | 25.8±0.3c |
SEM, standard error of the mean; L, days after the midpoint of lambing; HerbEW, early weaning onto unrestricted allowance of herb-clover mix; HerbCW, lambs+dams offered an unrestricted allowance of herb-clover mix until conventional weaning; GrassCW, lambs+dams offered unrestricted allowance of grass-clover pasture until conventional weaning; Restricted-GrassCW, lambs+dams offered with restricted allowance of grass-clover pasture until conventional weaning.
1) Lambs in A and D grazed with lambs and their ewes in B and E in 2015 and 2016, respectively. Lambs in B and E grazed with their ewes in B (2015) and E (2016). In 2015, lambs in C grazed with C ewes and A ewes. In 2016, F lambs grazed with their ewes in F. Lambs in G grazed with G ewes and D ewes.
Weaning treatment1) | n | Live weight (kg) | n | Live weight (kg) | n | Live weight (kg) |
---|---|---|---|---|---|---|
2015 | L58 | L81 | L95 | |||
HerbEWA | 22 | 72.0±1.8a | 21 | 77.1±1.8de | 22 | 79.8±1.8e |
HerbCWB | 21 | 70.8±1.7a | 20 | 72.6±1.7abc | 21 | 75.5±1.7bcd |
GrassCWC | 22 | 70.6±1.7a | 22 | 73.7±1.7abcd | 22 | 75.9±1.7cd |
2016 | L51 | L82 | L93 | |||
HerbEWD | 22 | 70.8±1.6b | 22 | 68.8±1.6ab | 21 | 69.5±1.6ab |
HerbCWE | 21 | 72.3±1.9bcd | 19 | 75.4±1.9d | 21 | 74.8±1.9cd |
GrassCWF | 19 | 69.4±1.8ab | 19 | 72.2±1.9bcd | 19 | 72.2±1.9bcd |
Restricted-GrassCWG | 20 | 71.3±2.0bc | 20 | 66.9±2.0a | 20 | 67.0±2.0a |
SEM, standard error of the mean; L, days after the midpoint of lambing; HerbEW, early weaning onto unrestricted allowance of herb-clover mix; HerbCW, lambs+dams offered an unrestricted allowance of herb-clover mix until conventional weaning; GrassCW, lambs+dams offered unrestricted allowance of grass-clover pasture until conventional weaning; Restricted-GrassCW, lambs+dams offered with restricted allowance of grass-clover pasture until conventional weaning.
1) A ewes grazed with C lambs and their ewes in 2015. B and E ewes grazed with their lambs in B and E, respectively. C ewes grazed with C lambs and A ewes in 2015. In 2016, D ewes grazed with G ewes and their lambs. F ewes grazed with their lambs in F. G ewes grazed with their lambs in G and D ewes.
Weaning treatment1) | n | Body condition score | n | Body condition score | n | Body condition score |
---|---|---|---|---|---|---|
2015 | L58 | L81 | L95 | |||
HerbEWA | 22 | 2.5 (1.9–3.2) | 21 | 2.9 (2.3–3.8) | 22 | 2.9 (2.3–3.7) |
HerbCWB | 21 | 2.5 (1.9–3.3) | 20 | 2.8 (2.1–3.6) | 21 | 2.7 (2.1–3.5) |
GrassCWC | 22 | 2.6 (2.0–3.3) | 22 | 2.8 (2.2–3.6) | 22 | 2.7 (2.1–3.5) |
2016 | L51 | L82 | L93 | |||
HerbEWD | 22 | 3.0 (2.4–3.8) | 22 | 2.9 (2.3–3.7) | 21 | 3.0 (2.4–3.8) |
HerbCWE | 21 | 2.9 (2.3–3.7) | 19 | 2.9 (2.3–3.8) | 21 | 3.1 (2.4–3.9) |
GrassCWF | 19 | 2.8 (2.2–3.6) | 19 | 3.1 (2.3–4.0) | 19 | 2.9 (2.3–3.8) |
Restricted-GrassCWG | 20 | 2.7 (2.0–3.5) | 20 | 2.6 (1.9–3.4) | 20 | 2.5 (1.9–3.3) |
SEM, standard error of the mean; L, days after the midpoint of lambing; HerbEW, early weaning onto unrestricted allowance of herb-clover mix; HerbCW, lambs+dams offered an unrestricted allowance of herb-clover mix until conventional weaning; GrassCW, lambs+dams offered unrestricted allowance of grass-clover pasture until conventional weaning; Restricted-GrassCW, lambs+dams offered with restricted allowance of grass-clover pasture until conventional weaning.
1) A ewes grazed with C lambs and their ewes in 2015. B and E ewes grazed with their lambs in B and E, respectively. C ewes grazed with C lambs and A ewes in 2015. In 2016, D ewes grazed with G ewes and their lambs. F ewes grazed with their lambs in F. G ewes grazed with their lambs in G and D ewes.