5. As regards any heather moorland or coastal heath which is the subject of an agreement—
(1) the farmer shall not increase existing stocking levels and in any event shall not exceed a stocking level of 0.225 livestock units per hectare in any year;
(2) the farmer shall not graze cattle from 1st November in any year until the following 15th April and shall graze ponies only with the Minister’s prior written approval;
(3) the farmer shall not exceed a stocking level of 1 ewe per hectare from 1st November in any year until the following 15th April;
(4) the farmer shall not provide supplementary feed for livestock, except that in emergency conditions he may provide hay;
(5) the farmer shall not provide mineral or feed blocks for livestock;
(6) the farmer shall observe the provisions of paragraph 4 above.