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Journal articles
Pâturage pour vaches laitières. Effets du chargement et de la complémentation en pâturage tournant simplifié.
Pâturage pour vaches laitières. Effets du chargement et de la complémentation en pâturage tournant simplifié.
Abstract : An experiment was carried out in Normandy between 1986 and 1988 over c. 6 months in each year, using a simplified rotational grazing technique (two paddocks in spring, four in autumn) with a total of 162 high-yielding cows (mean milk yield of 30.0 kg/day at turn-out). Three stocking rates, designated control (T: 2.3 cows/ha over the total area of the system), moderate (F : 2.6 cows/ha = 115 % of T) and high (TF : 3.0 cows/ha = 130 % of T), were compared at two rates of concentrate supplement, 3.7 kg/cow per day (H) and 0.5 kg/cow per day (B) . Individual milk yield differed by only a non significant 5 % between the extreme stocking rates (21.3 v. 20.3 kg fat-corrected milk (FCM) for treatments T and TF, respectively). Milk production/ha was 23 % greater in the TF treatment (9816 v. 7970 kg FCM for TF and T, respectively). Concentrate supplementation led, on average, to a 9 % milk yield improvement (21.8 v. 20.0 kg FCM for H and B rates, respectively), i.e. a mean efficiency of 0.6 kg FCM/kg supplement. This response tended to be greater in the higheryielding cows and for the high stocking rate. The sward measurements contributed to a better understanding of herbage utilization by the cows.
Cited literature [30 references]
https://hal.inrae.fr/hal-02714154
Contributor : Migration Prodinra <>
Submitted on : Monday, June 1, 2020 - 7:26:21 PM
Last modification on : Tuesday, May 11, 2021 - 3:11:45 PM
Long-term archiving on: : Wednesday, December 2, 2020 - 11:14:21 AM
Contributor : Migration Prodinra <>
Submitted on : Monday, June 1, 2020 - 7:26:21 PM
Last modification on : Tuesday, May 11, 2021 - 3:11:45 PM
Long-term archiving on: : Wednesday, December 2, 2020 - 11:14:21 AM
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