Feeding of pigeon pea leaves for dairy cows
The experiment was conducted to evaluate the effect of inclusion of pigeon pea leaves in the concentrate mixture on Feed intake, body condition score, milk yield and composition and serum metabolites of lactating crossbred dairy cows. The experimental design was 4 x 4 latin square design using 12 lactating crossbred dairy cows. Inclusion of up to 30% pigeon pea leaves in the concentrate mixture resulted similar feed intake, body condition score, serum metabolites and milk yield and composition.
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The experimental design was 4 x 4 latin square with 12 lactating crossbred dairy cows. The experiment was conducted over four periods; each period with 22 d (15 d adaptation and 7 d data collection). Daily feed offer and refusal were collected to calculate feed intake. milk yield and sample was collected daily in the morning and afternoon at 7:00 and 15: 00 hrs. Milk composition was anlaysed using a near-infrared instrument (Milkotronic-ultrasonic milk analyzer, Milkotronic Ltd), and weekly average values for milk composition were calculated for each cow. The 4% fat-corrected milk yield (FCM) was calculated according to Eastridge (2022): FCM (kg day-1) = (0.4 × milk yield) + (15 × fat yield). Energy corrected milk (ECM) was calculated following the equation developed by Tyrrell and Reid (1965) as ECM = kg milk × (383 × fat % + 242 × protein % + 783.2)/3140. Feed conversion efficiency was calculated by dividing ECM by total dry matter intake. Data was anlyzed using mixed model of SAS 9.4.