Generally speaking the Cocker Spaniel is still a hardy and healthy breed. With some planning and a bit of luck you'll have a happy, stable and active Cocker as your housemate for around 15 years. Once again, your Cocker Spaniel breeder plays a crucial role in determining the long term health and wellbeing of your dog.
The minimum weight for donating whole blood is 110 lbs. There is no maximum limit. If you are female and donating double red blood cells, you must be 5 5 tall and weigh 150 lbs. if you are a male and donating double red blood cells, you must be 5 1 tall and weigh 130 lbs.
This is why we set a minimum weight limit of 7st 12lbs (50 kg) because if more than 13% of blood volume is taken there is more risk of the donor feeling faint after donating. People who are very overweight may not be allowed to give blood for their own safety.