Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Experiment Design, Animals, and Management
2.2. Sampling and Analytical Procedures
Item | 0DG | 7DG | 14DG |
---|---|---|---|
Ingredient, % DM inclusion | |||
High moisture corn | 69.58 | 63.86 | 58.14 |
Corn Silage | 13.34 | 13.34 | 13.34 |
Soybean Meal | 2.86 | 1.43 | -- |
DDGS 1 | -- | 7.15 | 14.30 |
Supplement | |||
Ground corn | 6.906 | 6.925 | 6.940 |
Limestone | 1.477 | 1.620 | 1.763 |
Urea | 0.953 | 0.791 | 0.634 |
Trace mineral premix 2 | 0.097 | 0.097 | 0.097 |
Rumensin 90 | 0.016 | 0.016 | 0.016 |
Fat | 0.080 | 0.080 | 0.080 |
Supplement | |||
MGA 3 | 0.013 | 0.013 | 0.013 |
Ground corn | 4.677 | 4.677 | 4.677 |
Chemical analysis, % DM | |||
Dry matter | 65.28 | 65.94 | 66.70 |
Organic matter | 92.34 | 92.09 | 91.92 |
Crude protein | 12.33 | 12.85 | 13.45 |
Neutral detergent fiber | 11.20 | 12.46 | 13.74 |
Acid detergent fiber | 5.54 | 5.81 | 6.09 |
Ether extract | 3.34 | 3.88 | 4.42 |
NEm 4, Mcal/kg | 1.98 | 1.98 | 1.98 |
NEg 4, Mcal/kg | 1.46 | 1.46 | 1.46 |
2.3. Statistical Analysis
3. Results
3.1. Growth Performance
3.2. Feeding Behavior
3.3. Carcass Traits
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Conflicts of Interest
References
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Item | 0DG | 7DG | 14DG | SEM | p-Value | ||
---|---|---|---|---|---|---|---|
Diet | Time | Diet × Time | |||||
No. of pens | 5 | 5 | 5 | ||||
BW, kg 1 | |||||||
d 56 | 382 | 388 | 386 | 4.3 | 0.95 | <0.01 | 0.44 |
d 126 | 487 | 488 | 485 | ||||
d 180 | 556 | 551 | 551 | ||||
ADG, kg/day | |||||||
d 0–56 | 1.34 | 1.45 | 1.44 | 1.552 | 0.85 | <0.01 | 0.11 |
d 56–126 | 1.55 | 1.49 | 1.47 | ||||
d 126–180 | 1.35 | 1.23 | 1.27 | ||||
DMI, kg/day | |||||||
d 0–56 | 8.13 | 8.29 | 8.26 | 0.198 | 0.29 | <0.01 | 0.05 |
d 56–126 | 9.30 | 8.83 | 8.82 | ||||
d 126–180 | 9.68 a | 9.09 b | 9.04 b | ||||
G:F | |||||||
d 0–56 | 0.164 | 0.176 | 0.174 | 0.004 | 0.59 | <0.01 | 0.44 |
d 56–126 | 0.168 | 0.169 | 0.166 | ||||
d 126–180 | 0.138 | 0.136 | 0.140 |
Items | 0DG | 7DG | 14DG | p-Value |
---|---|---|---|---|
No. of pens | 5 | 5 | 5 | |
Feeding behavior traits 1 | ||||
Meal frequency, events/d | 15.1 | 14.0 | 13.7 | 0.88 |
Meal duration, min/d | 134.9 | 126.5 | 108.5 | 0.68 |
Meal length, min | 8.2 | 7.4 | 9.0 | 0.91 |
Meal size, kg | 0.66 | 0.87 | 0.89 | 0.65 |
Meal eating rate, g/min | 69.4 | 80.1 | 79.4 | 0.72 |
BV frequency, visit/d | 30.2 | 28.5 | 26.9 | 0.12 |
BV duration, min/d | 83.1 a | 71.4 b | 69.0 b | <0.01 |
Head down, min/d | 34.9 a | 26.5 b | 25.5 b | <0.01 |
Feeding behavior variability 2 | ||||
DMI | 4.6 a | 4.3 b | 4.2 b | 0.08 |
Meal frequency | 3.6 ab | 4.0 a | 3.4 b | 0.06 |
Meal duration | 44.4 b | 47.9 ab | 52.5 a | 0.07 |
BV frequency | 10.2 a | 9.5 ab | 8.7 b | 0.02 |
BV duration | 20.4 | 20.3 | 21.9 | 0.68 |
Head down | 15.0 | 15.1 | 16.5 | 0.58 |
Items 1 | 0DG | 7DG | 14DG | SEM | p-Value |
---|---|---|---|---|---|
No. of pens | 5 | 5 | 5 | ||
HCW, kg | 356 | 351 | 357 | 3.789 | 0.44 |
Dressing percentage, % | 64.09 | 63.84 | 64.73 | 0.404 | 0.14 |
12th rib fat thickness, cm | 1.45 | 1.60 | 1.61 | 0.073 | 0.23 |
LM area, cm2 | 91.00 | 83.69 | 89.70 | 0.826 | 0.02 |
KPH, % | 2.18 | 2.20 | 2.15 | 0.037 | 0.62 |
Yield grade | 3.09 | 3.34 | 3.19 | 0.103 | 0.23 |
Marbling score 2 | 584 | 562 | 546 | 19.8 | 0.39 |
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Huizenga, K.A.; McCann, J.C. Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase. Animals 2021, 11, 1905. https://doi.org/10.3390/ani11071905
Huizenga KA, McCann JC. Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase. Animals. 2021; 11(7):1905. https://doi.org/10.3390/ani11071905
Chicago/Turabian StyleHuizenga, Kaylie A., and Joshua C. McCann. 2021. "Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase" Animals 11, no. 7: 1905. https://doi.org/10.3390/ani11071905
APA StyleHuizenga, K. A., & McCann, J. C. (2021). Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase. Animals, 11(7), 1905. https://doi.org/10.3390/ani11071905