Dairy operation management practices and herd milk production

Area of Science:

• Animal Science
• Dairy Science
• Agricultural Management

Background:

• Holstein herd milk production varies nationally in the US.
• Understanding management's role is crucial for optimizing dairy farm efficiency.

Purpose of the Study:

• To identify specific herd management practices correlated with higher milk production in Holstein herds.
• To analyze factors influencing rolling herd average milk production.

Main Methods:

• A national US survey collected data on herd milk production and management practices.
• Step-wise selection identified significant management variables related to milk output.

Main Results:

• Milk production was highest in Western US regions and increased with herd size.
• Herds with >25% registered cattle, lower mean body weight at first calving, and younger age at first calving showed higher production.
• Specific practices like individual calf housing, hand-fed colostrum, preweaned calf starter grain, heifer ionophore supplementation, DHIA (Dairy Herd Improvement Association) record keeping, computerized records, and avoiding new cattle introduction were associated with increased milk production.

Conclusions:

• Herd management practices, including nutrition, record-keeping, and animal husbandry, are strongly linked to milk production efficiency.
• Optimizing these practices can lead to improved dairy herd performance and productivity.