7 results on '"Tianhai Yan"'
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2. Validation of the sulphur hexafluoride tracer technique for estimating methane emissions from dairy cows using respiration chambers: preliminary data
3. Prediction of manure nitrogen output for a whole lactation period using long-term production data of dairy cows.
4. Prediction of manure nitrogen excretion for dairy cattle using data collated at four physiological states (calf, growing, lactating and dry period).
5. Predicting nitrogen excretion from beef cattle on diets with contrasting protein content.
6. Effects of dietary protein level on feed intake, milk production and nutrient digestibility by lactating Holstein-Friesian cows.
7. Comparison of nitrogen excretion rate of dairy cattle at different physiological states (calf vs growing vs lactating vs dry period).
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