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Nutrient analysis of grass/legume1 hay

 
Item DM basis, %
Ash 11.8
CP 8.1
NDF 69.2
ADF 41.5
1Containing predominately cool season grasses with small amounts of alfalfa.



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The effects of nutrient restriction on maternal organ weight in beef cows at d 85 of gestation

 
Nutritional treatments1
Item CON RES SEM P-value
BW, kg 556.5 550.3 36.9 0.88
EBW,2 kg 419.4 426.8 28.7 0.84
REA,3 cm2 64.5 69.7 4.32 0.42
Carcass weight, kg 278.34 294.56 21.4 0.50
Back fat at 12th rib, cm 0.66 0.33 0.23 0.05
Gravid uterus, kg 2.51 2.80 0.20 0.19
Heart, kg 1.87 1.88 0.09 0.96
    g/kg EBW 4.47 4.44 0.32 0.95
Lung, kg 3.12 3.90 0.39 0.10
    g/kg EBW 7.61 9.05 1.02 0.15
Adrenals, kg 0.03 0.03 0.01 0.37
    g/kg EBW 0.07 0.08 0.01 0.52
Kidneys, kg 1.10 1.13 0.05 0.67
    g/kg EBW 2.67 2.67 0.14 0.98
Perirenal fat, kg 1.64 1.12 0.69 0.43
    g/kg EBW 3.71 2.46 1.45 0.40
Stomach complex, kg 15.8 15.8 0.75 0.99
    g/kg EBW 38.0 37.4 1.39 0.77
Abomasum, kg 1.85 2.16 0.09 0.05
    g/kg EBW 4.48 5.13 0.22 0.07
Omasum, kg 5.75 6.02 0.83 0.71
    g/kg EBW 13.8 13.7 1.24 0.96
Reticulum, kg 1.25 1.22 0.06 0.73
    g/kg EBW 2.99 2.89 0.13 0.58
Rumen, kg 6.85 6.78 0.51 0.88
    g/kg EBW 16.5 15.4 1.84 0.46
Small intestine, kg 4.12 4.43 0.17 0.24
    g/kg EBW 10.0 10.5 0.62 0.58
Large intestine, kg 3.43 4.40 0.20 0.01
    g/kg EBW 8.45 10.11 0.83 0.07
Spleen, kg 0.57 0.67 0.07 0.19
    g/kg EBW 1.40 1.55 0.18 0.40
Liver, kg 3.50 4.05 0.53 0.46
    g/kg EBW 8.71 9.55 1.45 0.66
Pancreas, kg 0.39 0.44 0.04 0.39
    g/kg EBW 0.94 1.04 0.07 0.37
Omental and mesenteric fat, kg 11.2 10.6 2.41 0.85
    g/kg EBW 28.22 25.58 7.19 0.74
1Cows received either control (CON; 100% NRC) diet (n = 6) or restricted (RES; 60% NRC) from d 30 to 85 (n = 6).
2EBW = empty BW: final BW – (gravid uterus + digesta).
3REA = ribeye area (LM muscle area).



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The effects of realimentation after nutrient restriction on maternal organ weight in beef cows at d 140 of gestation

 
Nutritional treatments1
Item CC RC RR SEM P-value
BW, kg 609.2a 584.2ab 527.4b 28.6 0.05
EBW,2 kg 450.5 439.8 399.6 24.5 0.10
Carcass weight, kg 311.0 299.4 269.9 22.1 0.12
REA,3 cm2 64.3 63.1 64.6 4.45 0.97
Back fat at 12th rib, cm 0.43 0.28 0.15 0.20 0.21
Gravid uterus, kg 11.0 11.3 11.7 0.50 0.86
Heart, kg 2.08 2.06 2.00 0.10 0.84
    g/kg EBW 4.69 4.83 5.01 0.28 0.70
Lung, kg 3.54 3.40 3.67 0.20 0.66
    g/kg EBW 7.95 8.00 9.18 0.62 0.21
Adrenals, kg 0.04 0.05 0.03 0.01 0.51
    g/kg EBW 0.08 0.12 0.08 0.03 0.54
Kidneys, kg 1.20 1.07 1.11 0.06 0.32
    g/kg EBW 2.70 2.52 2.79 0.18 0.60
Perirenal fat, kg 1.81 1.90 1.25 0.53 0.66
    g/kg EBW 4.04 4.72 2.95 1.28 0.48
Stomach complex, kg 17.4 15.4 14.8 0.77 0.09
    g/kg EBW 39.0 36.2 37.0 1.90 0.50
Abomasum, kg 2.01 1.88 2.81 0.59 0.52
    g/kg EBW 4.51 4.49 6.51 1.05 0.34
Omasum, kg 5.58 4.69 4.80 0.58 0.49
    g/kg EBW 12.3 10.5 12.4 1.63 0.55
Reticulum, kg 1.47 1.35 1.18 0.08 0.09
    g/kg EBW 3.32 3.18 2.94 0.19 0.39
Rumen, kg 8.29a 7.47a 6.05b 0.34 0.003
    g/kg EBW 18.7 17.8 15.2 1.07 0.10
Small intestine, kg 4.56 4.30 3.85 0.26 0.10
    g/kg EBW 10.2 10.1 9.66 0.59 0.81
Large intestine, kg 3.52 3.71 3.35 0.29 0.61
    g/kg EBW 7.93 8.75 8.26 0.60 0.65
Spleen, kg 0.71 0.59 0.70 0.06 0.41
    g/kg EBW 1.59 1.41 1.71 0.11 0.22
Liver, kg 4.37a 4.01ab 3.74b 0.15 0.02
    g/kg EBW 9.79 9.40 9.34 0.36 0.55
Pancreas, kg 0.47 0.38 0.40 0.03 0.17
    g/kg EBW 1.06 0.89 0.98 0.06 0.21
Omental and mesenteric fat, kg 11.2 10.6 7.47 3.10 0.16
    g/kg EBW 23.9 23.1 18.4 5.96 0.40
a,bMeans without a common superscript letter differ, P < 0.05.
1Cows received the control diet (100% NRC) from d 30 until 140 (CC; n = 6), restricted from d 30 to 85 (60% NRC) and then realimented to 100% of the NRC requirements until d 140 (RC; n = 5), and restricted from d 30 to 140 (60% NRC; RR; n = 6).
2EBW = empty BW: final BW – (gravid uterus + digesta).
3REA = ribeye area (LM muscle area).



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The effects of realimentation after nutrient restriction on maternal organ weight in beef cows at d 254 of gestation

 
Nutritional treatments1
Item CCC RCC RRC SEM P-value
BW, kg 624.2 622.0 605.8 31.2 0.85
EBW,2 kg 420.9 419.3 402.3 22.0 0.78
REA,3 cm2 56.2 53.4 55.5 6.06 0.92
Carcass weight, kg 275.4 277.1 262.7 20.4 0.82
Back fat at 12th rib, cm 0.11 0.08 0.18 0.07 0.62
Gravid uterus, kg 59.1 59.5 65.4 3.40 0.37
Heart, kg 2.06 1.93 1.82 0.12 0.30
    g/kg EBW 4.85 4.68 4.50 0.23 0.57
Lung, kg 3.66 2.99 3.17 0.31 0.13
    g/kg EBW 8.43 7.28 7.82 0.63 0.48
Adrenals, kg 0.03 0.32 0.04 0.19 0.51
    g/kg EBW 0.08 1.10 0.11 0.66 0.51
Kidneys, kg 1.27 1.13 1.23 0.06 0.08
    g/kg EBW 3.00 2.78 3.03 0.17 0.55
Perirenal fat, kg 1.27 1.80 0.99 0.35 0.24
    g/kg EBW 3.02 4.08 2.50 0.77 0.31
Stomach complex, kg 18.1 17.3 17.0 0.65 0.49
    g/kg EBW 43.7 42.0 42.3 1.93 0.80
Abomasum, kg 2.14 2.23 2.19 0.13 0.86
    g/kg EBW 5.09 5.49 5.42 0.39 0.76
Omasum, kg 5.56 5.04 5.03 0.28 0.35
    g/kg EBW 13.5 12.2 12.6 0.76 0.54
Reticulum, kg 1.72 1.38 1.34 0.17 0.25
    g/kg EBW 4.21 3.36 3.35 0.45 0.35
Rumen, kg 8.68 8.63 8.42 0.32 0.83
    g/kg EBW 21.0 20.9 21.0 0.73 0.99
Small intestine, kg 4.68 5.01 4.59 0.15 0.19
    g/kg EBW 11.1 12.4 11.5 0.85 0.56
Large intestine, kg 4.35 4.43 3.81 0.21 0.11
    g/kg EBW 10.5 10.9 9.48 0.80 0.44
Spleen, kg 0.60 0.58 0.58 0.05 0.94
    g/kg EBW 1.41 1.39 1.43 0.08 0.94
Liver, kg 4.31 4.33 4.54 0.19 0.67
    g/kg EBW 10.3 10.4 11.3 0.46 0.20
Pancreas, kg 0.48 0.52 0.39 0.04 0.10
    g/kg EBW 1.13 1.24 0.98 0.09 0.21
Omental and mesenteric fat, kg 10.68 9.49 7.92 1.61 0.49
    g/kg EBW 25.2 21.9 19.7 3.18 0.49
1Cows received the control diet (100% NRC) from d 30 until 254 (CCC; n = 6), restricted from d 30 to 85 (60% NRC) and then realimented to 100% of the NRC requirements until d 254 (RCC; n = 5), and restricted from d 30 to 140 (60% NRC) and then realimented to 100% of the NRC requirements until d 254 (RRC; n = 6).
2EBW = empty BW: final BW – (gravid uterus + digesta).
3REA = ribeye area (LM muscle area).