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 Poll Highland Cattle - The Scottish Highland - without the horns!
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       Calving Calculation                                        Calving Help          

Time of Service                 Due Date (283 days)
1st Jan                                      10th Oct
8                                                17
15                                               24
22                                               31
29                                               7th Nov
5th Feb                                      14
12                                               21
19                                               28
26                                               5th Dec
5th Mar                                      12
12                                              19
19                                              26
26                                              2nd Jan
2nd April                                    9
9                                                16
16                                              23
23                                              30
30                                              6th Feb
7th May                                     13
14                                              20
21                                              27
28                                              4th Mar
4th June                                    13
11                                              20  
18                                              27
25                                              3rd Apr 
2 July                                        10
9                                               17
16                                             24
23                                             1st May
30                                              8 
6th Aug                                     15
13                                              22 
20                                              29
27                                              5th June
3rd Sept                                    12 
10                                              19
17                                              26
24                                              3rd July
1st Oct                                      10
8                                               17  
15                                              24
22                                              31
29                                              7th Aug
5th Nov                                     14 
12                                              21
19                                              28 
26                                              4th Sept 
3rd Dec                                     11 
10                                              18
17                                              25
24                                              2nd Oct
31                                              9
                   When To Help And When Not To Help?
Highlands are truly easy calving. Birth weights of 60-75 pounds, calves' moderate bone structure and slim conformation along with the cow's wide pelvic structure reduce birthing problems such as Caesarean and prolapse. However, even when they deliver a problem-free, healthy calf, you still may want to give it some extra protection (see "after calf is born"). It never hurts to be prepared in the event a cow does need a little help from you on occasion. The best preparation is knowing what is "normal", what you should expect, then knowing when to help, and when not to help. Also in determining whether it's something you can do yourself, or if you feel more comfortable calling the vet. If you can look for some of these signs, you will at least know what to tell you vet when you call him. 
Disclaimer: The following is given for informational purposes only.  You must use your own judgment in how to apply this to your own situation, and by all means, consult with your vet if you anticipate any problems. A dead calf will cost you more than a vet call.
Stage 1  - Mucous plug - Clear discharge (usually means calving within 48 hours)
- Contractions 15 minutes apart - (will last from 2 to 8 hours) - Appearance of water sac
Stage 2 (will last from 30 minutes to 4 hours) - Water sac
- Contractions 3 to 5 minutes apart (then)
- Contractions 1 to 3 minutes apart
- Cow may take a 5 to 10 minute break after the head is delivered
Intervention Required When - - Water sac visible for 2 hours and she is not trying to deliver.
- Trying for 30 minutes to 1 hour and not making progress. - Bleeding from rectum - Swelling of calf's tongue
- Stops trying for 15 to 20 minutes - Abnormal presentation
Prior To Pulling Calf
- Wash & sanitize with solution of warm water antiseptic or dish soap
- Manually dilate birth canal for 2 to 10 minutes
- Drop cow on her right side (use a rope around hind quarters)
- Hook chains just above joint, then half hitch on lower leg
- Pull lower leg first to "walk" shoulder through, then pull other leg & shoulder.
- Pull straight out, only when cow is pushing
- Allow chest to expand and breathe (continual pulling will suffocate calf)
- Rotate calf 45 to 90 degrees to allow hips to pass through.
After Calf Is Born 
- Wait until cow has licked off calf, giving them time to bond, and wait until the calf has nursed if possible.
- Weigh calf - weigh yourself first, then pick up calf and subtract your weight from total - Inject calf with 3 to 5 cc's of Bo-Se (selenium) if in a selenium deficient area to prevent white-muscle disease. - Iodine navel - if the navel is real long, cut it with a scissors to 2 - 3 inches. Put iodine in a syringe (without the needle), and and use the syringe to get the iodine right inside the remaining navel cord, along with some on the outside where attached to the calf.
Preparations If Problems Are Expected -
- clock to watch the timing
 - dish soap - hot water (gallon)
- iodine & syringe (without needle) to wash around naval if necessary
- long gloves
- OB straps/chains
- phone number for vet

After Calf Is Born
- Wait until cow has licked off calf, giving them time to bond, and wait until the calf has nursed if possible.
- Weigh calf - weigh yourself first, then pick up calf and subtract your weight from total .
Watch to see if the calf has had a drink.  Its "Poo" will change from Black to yellow.   Yellow means it has had a drink. 

Poll Highland cattle society inc