Method and arrangement for animal management
A method is provided for managing animals ( 10 ) in a milking system which comprises a milking stall ( 11 ) provided with a milking apparatus ( 13 ) for milking the animals, a gate arrangement ( 18 a - b; 18 a - b, 32; 55 a - b ) allowing the animals to enter said milking stall, one at a time, from at least two different locations, and a control device ( 15 ) which holds and updates a milking suitability index for each of the animals. According to the method a first animal is identified and received at a first location, and a milking suitability index for the first animal is retrieved. A second animal is identified and received at a second location, and a milking suitability index for the second animal is retrieved. The milking suitability indexes for the first and second animals are compared and an animal at either one of said first and second locations is allowed to enter the milking stall depending on the outcome of the comparison.
1. A method for managing milking animals, the method comprising:
determining milking suitability indexes for milking animals approaching a first or a second booth;
comparing the milking suitability indexes against an independent suitability threshold;
permitting only milking animals having determined milking suitability indexes above the suitability threshold to enter the first and the second booth;
comparing a milking suitability index of a first milking animal in the first booth and a milking suitability index of a second milking animal in the second booth against each other;
permitting one of the first and the second milking animal with a more milking-suitable of the compared milking suitability indexes to exit the respective first or second booth and enter a milking stall to be milked by a milking apparatus; and
retaining the other of the first and the second milking animal with a less milking-suitable of the compared milking suitability indexes within the respective first or second milking booth.
2. The method of claim 1 , wherein the determining milking suitability indexes includes,
identifying the milking animals approaching the first or the second booth, and
calculating a milking suitability index corresponding to the identified animal.
3. The method of claim 2 , wherein each of the milking animals has a corresponding independent suitability threshold calculated from unique criteria, and wherein the permitting includes permitting only milking animals having determined milking suitability indexes above the corresponding independent suitability threshold to enter the first and the second booth.
4. The method of claim 2 , wherein the milking suitability indexes are calculated based on at least one of a time interval since the identified milking animal was previously milked, a time interval since the identified milking animal left a feeding area, a median time interval for the identified milking animal to wait in a waiting area before being milked, an average time interval for the identified milking animal to wait between milkings, a health parameter of the identified milking animal, a hoof or leg injury of the identified animal, a cell count value of milk from the identified milking animal, a conductivity value of milk from the identified milking animal, a color of milk from the identified milking animal, a hierarchic order of the identified milking animal, a time interval since the identified milking animal most recently gave birth to a calf, a number of days the identified milking animal has been in lactation, an expected milk yield for the identified milking animal, and a milking result for the identified milking animal from a previous milking.
5. The method of claim 1 , wherein the permitting one of the first and the second milking animal to exit the respective-first or second milking booth and enter a milking stall to be milked by a milking apparatus includes opening a gate directly between only the respective first or second milking booth and the milking stall.
6. The method of claim 1 , wherein the first and the second booths are sized to house only one milking animal, and wherein only a single milking animal is permitted to enter or exit each of the first and the second booths at a time.
7. The method of claim 1 , wherein the first and the second booths are each sized to house a plurality of the milking animals in a single-file manner, so that the milking animals may not change order in the booths.
8. The method of claim 1 , wherein,
the first booth is a waiting area sized to house a plurality of the milking animals in several directions so that the milking animals in the waiting area may re-order themselves, and
the second booth is sized to house a plurality of the milking animals in a single-file manner, so that the milking animals in the second booth may not change order.
9. The method of claim 8 , further comprising:
comparing the milking suitability indexes against a high-suitability threshold;
permitting only milking animals having determined milking suitability indexes above the high-suitability threshold to enter only the second booth; and
permitting only milking animals having determined milking suitability indexes above the suitability threshold and below the high-suitability threshold to enter only the first booth.
10. The method of claim 9 , wherein the comparing the milking suitability indexes of a first milking animal in the first booth and a second milking animal in the second booth against each other includes comparing the milking suitability of the first milking animal approaching the milking stall in the waiting area and the second milking animal being at a front of a line in the second booth.
11. The method of claim 9 , further comprising:
prohibiting any further milking animals from entering the first booth until a predetermined milking animal in the first booth enters the milking stall.
12. The method of claim 1 , wherein the independent threshold is calculated based on at least one of a presence of the milking animal in the first booth and a presence of the milking animal in the second booth.
13. The method of claim 1 , further comprising:
feeding the milking animals; and
directing the milking animals to the first or the second booth directly after the feeding.
14. The method of claim 1 , further comprising:
increasing milking suitability of the other of the first and the second milking animal retained in the respective milking booth, the increasing being based on a time that the other of the first and the second milking animal is retained in the respective first or second milking booth.