COWSDATA: Crossbreeding of Cows

In gpk: 100 Data Sets for Statistics Education

Description

A project on crossbreeding of cows was conducted at multiple centers. A cow when inseminated during heat may or may not conceive. Factors likely to affect success are semen used (fresh or frozen), hormonal status of cow, etc. Cows were brought to the centers when they were found to be in the "heat" state. Time lag between onset of heat and insemination was noted as also success or failure of insemination. Veterinary practitioners believe that maximum "success" is observable if the insemination is practiced within 24-30 hours from onset of heat.

Usage

data(COWSDATA)

Format

A data frame with 10 observations on the following 7 variables.

Time

Time since onset of heat

Sillod_Insemination_C1

Insemination count (center 1)

Sillod_Conception_C1

Conception count (center 1)

Sillod_Insemination_C2

Insemination count (center 2)

Sillod_Conception_C2

Conception count (center 2)

Sillod_Insemination_C3

Insemination count (center 3)

Sillod_Conception_C3

Conception count (center 3)

Details

ANOVA-for proportions, arcsine transformation, comparison of slopes, and regression of conception rate on time for each center are some of the suggested methods for the user.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Examples

data(COWSDATA)

Example output

gpk documentation built on May 2, 2019, 12:39 p.m.