Net energy value of rapeseed oil infused into the duodenum of lactating cows.
نویسندگان
چکیده
= 4.8) (NS) for the diets C and 0, respectively. Lipid and fatty acid intestinal digestibility of oil were calculated by difference to be 50.8% (s = 9.7) and 71.2% (s = 6.2). Energy gain was calculated as the mean of the respiratory quotient (RQ) and carbon-nitrogen (CN) balances. The efficiency (kl) of metabolizable energy (ME) utilization was computed by assuming that the maintenance requirement of lactating cows was 293 kJ NELlkg BW O.7S It was higher for the 0 than for the C diet: 60.8% (s = 3.5) vs 58.4% (s = 2.7), (P < 0.02). The average and confidence limits (p t <o 05 st-!n-) of oil energy values were calculated from individual energy balances obtained with the 2 diets: ME = 19.3 ± 9.7
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عنوان ژورنال:
- Reproduction, nutrition, development
دوره Suppl 2 شماره
صفحات -
تاریخ انتشار 1990