Relationship between Plasma and Saliva Urea Nitrogen Concentrations in New Zealand Red Deer Calves (Cervus elaphus)
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Experimental Design and Treatment
2.2. Care and Use of Animals
2.3. Herbage
2.4. Statistical Analysis
3. Results
3.1. Diet Composition and Nutritional Value
3.2. Relationship between Plasma Urea N and Saliva Urea N
4. Discussion
4.1. The Relationship between Saliva Urea N and Plasma Urea N
4.2. Significant Effects on the Relationship between Saliva Urea N and Plasma Urea N
4.3. Estimation of Plasma Urea Nitrogen from Saliva Urea Nitrogen
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Constituent | N | Mean | SD | Established Minimum | Established Maximum | SEC | RSQ | SECV | 1-VR |
---|---|---|---|---|---|---|---|---|---|
Protein | 250.00 | 16.09 | 7.01 | 0.00 | 37.11 | 0.86 | 0.99 | 1.04 | 0.98 |
DOMD | 247.00 | 68.47 | 13.59 | 27.69 | 109.25 | 2.36 | 0.97 | 2.83 | 0.96 |
OM | 250.00 | 89.40 | 3.54 | 78.79 | 100.02 | 1.19 | 0.89 | 1.39 | 0.85 |
DMD | 250.00 | 72.81 | 13.23 | 33.11 | 112.51 | 2.15 | 0.97 | 2.44 | 0.97 |
Treatment | Grasses | Legumes | Forbs | Brassicas | Weeds | Dead Material |
---|---|---|---|---|---|---|
Diverse | 25.9% | 20.7% | 8.2% | 13.4% | 2.3% | 29.5% |
PRG | 24.3% | 22.1% | 0.0% | 0.0% | 17.8% | 35.7% |
Variable | May–June | June–July | July–August | August–September | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nutritive Value | Diverse | SE | PRG | SE | Diverse | SE | Diverse Baleage | SE | PRG | SE | PRG Baleage | SE | Diverse | SE | Diverse Baleage | SE | PRG | SE | PRG Baleage | SE | Diverse Baleage | SE | PRG Baleage | SE |
Protein g/kg DM | 13.41 | 0.30 | 14.06 | 0.54 | 16.26 | 0.25 | 15.28 | 1.37 | 13.50 | <0.01 | 8.49 | 0.82 | 21.18 | 0.03 | 15.69 | 22.13 | 0.50 | 15.21 | 0.61 | 16.62 | 0.37 | 8.39 | 0.41 | |
Digestibility (DOMD) g/kg DM | 60.80 | 0.48 | 56.08 | 0.83 | 65.23 | 0.53 | 45.52 | 3.05 | 61.30 | 0.24 | 57.74 | 4.33 | 71.96 | 0.77 | 56.82 | 69.54 | 0.54 | 66.41 | 1.42 | 61.16 | 6.51 | 51.14 | 1.26 | |
MJ ME/kg DM | 9.63 | 0.12 | 9.17 | 0.09 | 10.12 | 0.02 | 9.71 | 0.01 | 66.41 | 11.02 | 0.02 | 10.79 | 0.22 | |||||||||||
OM g/kg DM | 93.04 | 0.56 | 93.46 | 0.18 | 91.67 | 0.13 | 92.41 | 0.02 | 93.01 | 0.18 | 94.42 | 0.07 | 90.69 | 0.06 | 91.83 | 90.92 | 0.53 | 90.46 | 0.39 | 90.73 | 0.44 | 93.59 | 0.35 | |
DM g/kg DM | 25.00 | 6.79 | 29.10 | 8.03 | 24.30 | 7.13 | 29.20 | 0.44 | 40 | 6.65 | 66.40 | 0.71 | 20.30 | 68.31 | 41.40 | 0.03 | 17.80 | 3.55 | 56.90 | 0.44 | 47.80 | 1.04 | 65.9 | 0.37 |
Average % DM Consumed | 43% | 45% | 53% | 15% | 73% |
p-Value * | ||||||||
---|---|---|---|---|---|---|---|---|
PRG | Diverse | Diet | Month | Gender | Seasonality | D × M | G × S | |
SUN (mmol/L) | 6.42 ± 0.231 | 6.39 ± 0.187 | 0.02 | *** | 0.23 | 0.75 | *** | 0.09 |
PUN (mmol/L) | 6.37 ± 0.155 | 5.97 ± 0.114 | ** | *** | 0.21 | ** | *** | 0.09 |
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Wilson, E.; Fleming, A.; Vollebregt, M.; Gregorini, P. Relationship between Plasma and Saliva Urea Nitrogen Concentrations in New Zealand Red Deer Calves (Cervus elaphus). Animals 2024, 14, 2565. https://doi.org/10.3390/ani14172565
Wilson E, Fleming A, Vollebregt M, Gregorini P. Relationship between Plasma and Saliva Urea Nitrogen Concentrations in New Zealand Red Deer Calves (Cervus elaphus). Animals. 2024; 14(17):2565. https://doi.org/10.3390/ani14172565
Chicago/Turabian StyleWilson, E., A. Fleming, M. Vollebregt, and P. Gregorini. 2024. "Relationship between Plasma and Saliva Urea Nitrogen Concentrations in New Zealand Red Deer Calves (Cervus elaphus)" Animals 14, no. 17: 2565. https://doi.org/10.3390/ani14172565