Changes in Dairy Cow Behavior with and without Assistance at Calving
نویسندگان
چکیده
The aim of this study was to characterize calving behavior dairy cows and compare the duration frequency behaviors for assisted unassisted at calving. Behavioral data from nine hours prior were collected 35 Holstein-Friesian cows. Cows continuously monitored under 24 h video surveillance. standing, lying, walking, shuffle, eating, drinking contractions recorded each cow until birth. A generalized linear mixed model used assess differences in assessed three-hour time periods. found that spent a large proportion their either lying (0.49) or standing (0.35), with higher (0.36) shuffle (0.26) bouts than other during study. There no between During three-hours calving, including contractions, While changes failed identify an association assistance, monitoring behavioral patterns could be as alert progress parturition.
منابع مشابه
Managing the Cow at Calving Time
Despite increased emphasis in recent years on declining dairy cow reproductive performance, there has been very little focus on the management of the periparturient dairy heifer and cow at calving time. Perhaps as a result, US producers are now reporting increasing perinatal calf losses at calving. A critical determinant in reducing periparturient losses is good calving management. The tenets o...
متن کاملRelationship between dairy cow genetic merit and profit on commercial spring calving dairy farms.
Because not all animal factors influencing profitability can be included in total merit breeding indices for profitability, the association between animal total merit index and true profitability, taking cognisance of all factors associated with costs and revenues, is generally not known. One method to estimate such associations is at the herd level, associating herd average genetic merit with ...
متن کاملcomparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولHerd factors associated with dairy cow mortality.
Summary studies of dairy cow removal indicate increasing levels of mortality over the past several decades. This poses a serious problem for the US dairy industry. The objective of this project was to evaluate associations between facilities, herd management practices, disease occurrence and death rates on US dairy operations through an analysis of the National Animal Health Monitoring System's...
متن کاملAnalysis of milk production, age at first calving, calving interval and economic parameters in dairy cattle management
The objective of this study was to evaluate main indicators of milk production on total 60 commercial dairy herds from the Czech Republic during a 9-yr period (2006-2014). Breakeven points and sensitivity analysis were used and associations of age at first calving (AFC), milk yield (MY) and calving interval (CI) were analyzed. Lowest AFC≤749 d showed the highest fertility, the lowest death rate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agriculture
سال: 2021
ISSN: ['2077-0472']
DOI: https://doi.org/10.3390/agriculture11080722