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The effects of herbage allowance on pasture characteristics and milk production of dairy cows
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ABSTRACT
This study aimed to evaluate the effect of herbage allowance on forage productivity, botanical composition and milk yield of Holstein cows. The treatments comprised three conditions of pasture allowance, high (38.4 kg DM cow
−1
day
−1
), medium (30.3 kg DM cow
−1
day
−1
) and low (26.8 kg DM cow
−1
day
−1
) forage supply during autumn, and throughout the pasture allowance conditions of high (49.8 kg DM cow
−1
day
−1
), medium (33.7 kg DM cow
−1
day
−1
) and low (27.6 kg DM cow
−1
day
−1
) herbage supply during spring. Significant differences (
P
< .05) were observed for forage accumulation, total biomass production and animal stocking rate according to the seasons. Herbage allowance affected (
P
< .05) the botanical composition and milk production, registering a decrease in
Festuca
in the summer, and a continuous reduction in legume proportion. Pasture management with a medium herbage allowance throughout the year provided a greater total annual milk production per hectare.
Title: The effects of herbage allowance on pasture characteristics and milk production of dairy cows
Description:
ABSTRACT
This study aimed to evaluate the effect of herbage allowance on forage productivity, botanical composition and milk yield of Holstein cows.
The treatments comprised three conditions of pasture allowance, high (38.
4 kg DM cow
−1
day
−1
), medium (30.
3 kg DM cow
−1
day
−1
) and low (26.
8 kg DM cow
−1
day
−1
) forage supply during autumn, and throughout the pasture allowance conditions of high (49.
8 kg DM cow
−1
day
−1
), medium (33.
7 kg DM cow
−1
day
−1
) and low (27.
6 kg DM cow
−1
day
−1
) herbage supply during spring.
Significant differences (
P
< .
05) were observed for forage accumulation, total biomass production and animal stocking rate according to the seasons.
Herbage allowance affected (
P
< .
05) the botanical composition and milk production, registering a decrease in
Festuca
in the summer, and a continuous reduction in legume proportion.
Pasture management with a medium herbage allowance throughout the year provided a greater total annual milk production per hectare.
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