Protection Farms -- mature units- part two population spread shee

[Guest guest]

Pancaratna das:

Ø Of course not all cows and bulls will live this long and some may live

longer, but I believe this is a workable spreadsheet to calculate herd

growth. I would like to have some experts look at it.

> Also, this spreadsheet assumes all cows are bred whenever they are capable

of conceiving. As such there will be unlimited growth of the herd, which

starts to grow exponentially at a certain point. Therefore, some limits to

breeding must be put into the model for it to be truly workable. This would

depend on the optimum herd size.

 

Comment:

Year one:

Population: 4

4-yr-old bull ('A').

Three 3-yr-old cows (bred)

 

 

Year two:

Population: 10

5-yr-old bull ('A').

Three 4-yr-old cows (milking 365 days)

Three 3-yr-old cows (bred)

Three calves all female.

 

 

Year three:

Population: 16

6-yr-old bull ('A').

 

Milk herd 9

Three 5-yr-old cows (milking -730 but + 365 days)

Three 4-yr-old cows (milking -365 days) and a

Three 3-yr-old cows (bred)

 

Young herd 6

Three 1-yr-old heifers.

Three calves; 2 female and 1 male.

 

 

Year four: First year no new cows are introduced.

Population: 19

7-yr-old bull ('A').

 

Milk herd 9

Three 6-yr-old cows (milking -1095 but +730)

Three 5-yr-old cows (milking -730 but + 365 days)

Three 4-yr-old cows (milking -365 days)

 

Young herd 9

Three 2-yr-old heifers (daughters of bull 'A').

Two 1-yr-old heifers and a bullock (of bull 'A').

Three calves; 2 male and 1 female (of bull 'A').

 

 

Year five: Second year no new cows are introduced.

Population: 22

8-yr-old bull ('A').

 

Milk herd 9

Three 7-yr-old cows (milking on 2nd lactation -365)

Three 6-yr-old cows (milking -1095 but +730 days)

Three 5-yr-old cows (milking -730 but + 365 days)

 

Young herd 12

Three 3-yr-old heifers (daughters of bull 'A')

Two 2-yr-old heifers and a bullock (of bull 'A').

Two 1-yr-old bullocks and a heifer (of bull 'A').

Three calves; 2 female and 1 male (of bull 'A').

 

 

Year six: Third year no new cows are introduced.

Population: 25

9-yr-old bull ('A').

 

Milk herd 9

Three 8-yr-old cows (milking on 2nd lactation -730 +365)

Three 7-yr-old cows (milking on 2nd lactation -365)

Three 6-yr-old cows (milking -1095 but +730 days)

 

Young herd 15

Three 4-yr-old heifers (daughters of bull 'A')

Two 3-yr-old heifers and a bullock (of bull 'A').

Two 2-yr-old bullocks and a heifer (of bull 'A').

Two 1-yr-old heifers and a bullock (of bull 'A').

Two bull calves and a heifer (of bull 'A').

 

 

Year seven: Home bred heifers, bred to new three yr-old bull ('B').

Population: 29

Bull herd 2

10-yr-old bull ('A').

3-yr-old bull ('B')

 

Milk herd 12

Three 9-yr-old cows (milking on 2nd lactation -1095 but +730 days)

Three 8-yr-old cows (milking on 2nd lactation -730 +365)

Three 7-yr-old cows (milking on 2nd lactation -365)

Three 5-yr-old heifers (daughters of bull 'A') (bred to bull 'B')

 

Young herd 15

Two 4-yr-old heifers and a bullock (of bull 'A').

Two 3-yr-old bullocks and a heifer (of bull 'A').

Two 2-yr-old heifers and a bullock (of bull 'A').

Two 1-yr-old bullocks and a heifer (of bull 'A').

Three calves; 2 female and 1 male (of bull 'A').

 

Year eight: Home bred heifers calving. Bull ('A") castrated. Three cows

retired.

Population: 32

Bull herd 1

-One 4-yr-old bull ('B')

 

Retired herd 4

-One 11-yr-old bull ('A'), castrate and retire.

-Three 10-yr-old cows (dry-up and retire).

 

Milk herd 12

-Three 9-yr-old cows (milking on 2nd lactation -1095 but +730 days)

-Three 8-yr-old cows (milking on 2nd lactation -730 +365)

-Three 6-yr-old cows (d. of bull 'A') (milking on 1st lactation -365)

-Two 5-yr-old cows (d. of bull 'A') (bred to bull 'B').

-One 4-yr-old cow (d. of bull 'A')(bred to bull 'B', to maintain quota of

milkers.

 

Oxen herd 4

-One 5-yr-old bullock (doing light work)

-Two 4-yr-old bullocks. (doing light work)

-One 3-yr-old bullock (training).

 

Young herd 11

-Two 3-yr-old heifers (of bull 'A').

-Two 2-yr-old bullocks and a heifer (of bull 'A').

-Two 1-yr-old heifers and a bullock (of bull 'A').

Three female calves (of bull 'B').

 

Agricultural practices:

1. Prior to this time use of tractor to maintain fields and engage in

hauling etc, with three oxen capable to do light work the tractor should be

regulated to only heavy work. All raking, mowing and the operation of all

mills should be done by oxen.

2. By the practice of rapid rotational grazing the fertility of the soil

should be built up to a state where chemical fertilizers are no longer

needed.

3. Feed lots should be non-stationary so that these areas can be moved

seasonally, followed by crops planted in the old location.

4. Original fencing should be beginning to be replaced by permanent hedge

rows of a variety of trees and shrubs; that can withstand the cows presence

(holly etc.) and produce wood, flowers, fruits, herbs and nuts.

 

Year nine:

Population: 36

 

Retired herd 7

-12-yr-old bull ('A'), castrate and retire.

-Three 11-yr-old cows (dry-up and retire)

-Three 10-yr-old cows (dry-up and retire)

 

Breeding bull 1

-5-yr-old bull ('B')

 

Milking herd 12

-Three 9-yr-old cows (milking on 2nd lactation -1095 +730 days). Was bred to

bull 'A'.

 

-Three 7-yr-old cows(d. of bull 'A')(milking on 2nd lactation -730 +365).

Was bred to bull 'B'.

 

-Two 6-yr-old cows & 5-yr-old cow(d. of bull 'A')(milking on 1st

lactation -365). Was bred to bull 'B'.

 

-Two 4-yr-old heifers (of bull 'A')(bred to bull 'B').

 

-One 3-yr-old heifer (of bull 'A')(bred to bull 'B').

 

Bullock herd 7

Teamster Bhakta Adam 3

-One 6-yr-old bullock (doing light work)

-Two 5-yr-old bullocks (doing light work)

Teamster Krsna das 4

-One 4-yr-old bullock (doing light work)

-Two 3-yr-old bullocks (training)

-One 2-yr-old bullock (training)

 

Young herd 9

-Two 2-yr-old heifers and a bullock (of bull 'A').

-Three 1 yr-old heifers (of bull 'B').

-Two heifers and a bullock (of bull 'B').

 

 

Year ten:

Population: 39

 

Retired herd 10

-One 13-yr-old bull ('A'), castrate and retire.

-Three 12-yr-old cows (dry-up and retire)

-Three 11-yr-old cows (dry-up and retire)

-Three 10-yr-old cows (dry-up and retire)

 

Bull herd 1

-One 6-yr-old bull ('B')

 

Milking herd 12

-Three 9-yr-old cows (d. of bull 'A') (milking on 1st lactation -1095 but

+730 days). Was bred to bull 'B'.

 

-Two 7-yr-old cows & One 6-yr-old cow (d. of bull 'A') (milking on 1st

lactation -730 +365). Was bred to bull 'B'.

 

-Two 5-yr-old cows & One 4-yr-old cow (d. of bull 'A') (milking on 1st

lactation -365). Was bred to bull 'B').

 

-Two 3-yr-old heifers (d. of bull 'A') bred to bull 'B'.

 

Bullock herd 9

Teamster Bhakta Adam 4

-One 8-yr-old bullock (doing heavy work)

-Two 6-yr-old bullocks (doing heavy work)

-One 5-yr-old bullock (doing light work)

 

Teamster Krsna das 5

-Two 4-yr-old bullocks (doing light work)

-One 3-yr-old bullock (training)

-Two 2-yr-old bullock (training)

 

Young herd 6

-Three 1 yr-old heifers (of bull 'B').

-Two heifers and a bullock (of bull 'B').

 

Agricultural practices:

1. Tractor retired, all work done by oxen.

2. Original fencing replaced by permanent hedge rows of a variety of trees

and shrubs; that can withstand the cows presence (holly etc.) and produce

wood, flowers, fruits, herbs and nuts.

 

Too skip ahead now to year fifteen when the herd will theoretically reach

maturity if the no animals die until they have reached eighteen; keeping in

mind that some animals will die younger and some will live past eighteen. In

order to meet the production needs some animals may not be retired on time

to make up for animals dying earlier than eighteen.

 

Population: 57

-One 19-yr-old bull ('A'), died last year.

-Three 18-yr-old cows die this year

 

Retired herd 22

-Three 17-yr-old cows

-Three 16-yr-old cows

-Three 15-yr-old cows

-Three 14-yr-old cows (d. of bull 'A')

-One 14-yr-old bull ('B') castrated.

-Two 13-yr-old cows & One 13-yr-old ox (of bull 'A')

-One 12 yr-old cow & Two 12-yr-old oxen (of bull 'A')

-Three 11-yr-old cows (of bull 'B')

 

Bull herd 2

One nine year old bull ('C')

One three yr-old bull ('D')

 

Milking herd 12

-Two ten-yr-old & One 9-yr-old cows (d. of bull 'B') (milking on 2nd

lactation -1095 but +730 days) Was bred to bull 'C'.

 

-Two 8-yr-old & One 7-yr-old cows (d. of bull 'B') (milking on 2nd

lactation -730 +365). Was bred to bull 'C'.

 

-Three 6-yr-old cows (d. of bull 'C') Was bred to bull 'D' (milking on 1st

lactation -365).

 

-Two 5-yr-old & One 4-yr-old cows (d. of bull 'C') bred to bull 'D'.

 

Bullock herd 13

Teamster Bhakta Adam 4

-One 10-yr-old bullock (doing heavy work)

-Two 9-yr-old bullocks (doing heavy work)

-One 8-yr-old bullock (doing heavy work)

 

Teamster Krsna das 5

-Two 7-yr-old bullocks (doing heavy work)

-One 6-yr-old bullock (doing heavy work)

-Two 5-yr-old bullocks (doing light work)

 

Teamster Caitanya das 4

-One 4-yr-old bullock (doing light work)

-Two 3-yr-old bullocks (training)

-One 2-yr-old bullock (training)

 

Young herd 6

-Three 1 yr-old heifers (of bull 'D').

-Two heifers and a bullock (of bull 'D').

 

Note: An new bull must be used with each cow generation until you reach bull

'F' then bulls related to generation 'A' maybe used, to be freed from close

inbreeding.

 

ys, Rohita dasa brahmacari