Lactation period is maximum in

Assertion (A): Cross breeding of dairy animals increases the productivity of milk. Reason (R): Lactation period of dairy animals can be increased by cross breeding.

Lactation in sterile cows is induced by

Lactation in sterile cows is induced by

Lactation in sterile cows is induced by

Lactation in sterile cows is induced by

Lactation in sterile cow is induced by

What is true for lactational amenorrhea ? (i) It means absence of menstruction (ii) Ovulation does not occur during the lactational period (iii) Chances of contraception are almost nil upto six months following parturition (iv) Side effects are almost nil (v) Contraceptive efficiency reduces after the period of intense lactation (vi) It is natural method of contraception (vii) It increases phagocytosis of sperms

What is true for lactational amenorrhea ? (i) It means absence of menstruction (ii) Ovulation does not occur during the lactational period (iii) Chances of contraception are almost nil upto six months following parturition (iv) Side effects are almost nil (v) Contraceptive efficiency reduces after the period of intense lactation (vi) It is natural method of contraception (vii) It increases phagocytosis of sperms