Non-infectious abortions- shortened

Question 1

What are the 6 main causes of non-infectious abortions

Answer 1

1. PGE2 surge before the abortion
2. Plants
3. Mycotoxins
4. Allergens
5. Cyanotoxins
6. Pollutants

Question 2

What are the 2 main causes of the PGE2 surge before abortion

Answer 2

Stress

Lack of nutrients, vits and mins

Question 3

Stress causing PGE2 surge

Answer 3

Social

Environmental

Transport

Hieracrhy

Question 4

Nutrient, vit and min def causing the PGE2 surge (7)

Answer 4

1. E def: no fert, abortive only in goats
2. Protein def
3. Iodine def
4. Vit K def
5. Riboflavin B2 def- early premature birth (14-16days)
6. Biotin: teratoegnic and abortive in mice
7. Vit A def/OD: sows- malformation of aborted piglets

Question 5

Plants causing abortions and the compounds they contain

Answer 5

Meadow plants: antinutritives, toxins, nitrates

Locoweed: phytoestrogens

Poison hemlock, juniper, tobacco- piperidines

Question 6

Mycotoxins

Answer 6

1. Ergotism: sow lack udder development and abortive
2. Zearalenon F2: binds to estradiol sites on DNA- abortion and estrogen like syndrome in newborns
3. Fumonism: pulm edema in sows and abort 2-3 days later

Question 7

Allergens

Answer 7

Alfalfa meal: alpha lectins

Cereals: gluten

Question 8

Cyanotoxins

Answer 8

Algal blooms

Fish meals- plumbing systems

Question 9

Pollutants

Answer 9

Carbon tetrachloride

Benzene

PCB/ PBC- estrogen like