ANESTRUM IN CATTLE

ANESTRUS FAILURE OF ESTRUS TWO CATEGORIES MOST COMMON CAUSE OF INFERTILITY TWO CATEGORIES CLASS I - FUNCTIONAL CL ( False anestrum) CLASS II - NO CL ( True anestrum)

PCL-DOES NOT OCCUR IN THE PRESENCE OF NORMAL NON-PREGNANT UTERUS FALSE ANESTRUS PREGNANCY Unobserved Estrum PERSISTENT CL MUMMIFIED FETUS FETAL MACERATION PYOMETRA HYDRO/ MUCOMETRA UTERINE INFECTIONS PCL-DOES NOT OCCUR IN THE PRESENCE OF NORMAL NON-PREGNANT UTERUS

FALSE ANESTRUS -Treatment PGF2 alpha Dose Natural 25mg/ Synthetic 500-700 g Single Injection – Palpation CL necessary Double Injection – Palpation CL not necessary

TRUE ANESTRUS SMALL INACTIVE OVARIES To be confirmed by repeat examination 10 days later Major Cause INSUFFICIENT RELEASE OF GONADOTROPINS OR FAILURE OF THE OVARIES TO RESPOND

Ovarian Abnormalities 1.Hypoplasia 2. Cystic ovaries Heavy lactation - (-) balance Suckling Debilitating disease Senility Factors Season Lactation Nutrition low plane of nutrition - most common lack of energy, protein, minerals - p, co, fe, cu, I,mn, Zn and vit-A,E Failure of follicular development in ovary & ovulation Gonadotropin insufficiency

TREATMENT True Anestrous Correction of Nutritional Deficiency Energy Vitamins Trace minerals Negative Energy balance Glucose level lesser than -60mg/dl Hormonal Therapy

GnRH Induces follicular growth and ovulation within 18 to 23 days Dose 500 g Gonadorelin (FERTAGYL) 8–20 g Buserelin (RECEPTAL)

PROGESTERONE Most effective Intravaginal pessaries (CIDR) Ear implant (Synchromate-B) Stores LH concentration in pituitary Mimics natural Progesterone phase Induces ovulatory estrus in most of the animals

EAZI-BREED CIDR Day 6 Day 7 Day 8 Day 9-11 7 Days Inject PG Remove Detect Estrus or Inseminate Fixed-time 50 hours