Agriculture teacher preparation- Animal husbandry

 Agriculture teacher preparation- Animal husbandry 

Different Live Stock Puberty, Oestrous Cycle & Heat Period

Puberty = In Months

	Puberty	Oestrous Cycle	Heat Period
Cow	30-42	21 Days	18 Hours
Buffalo	30-42	21 Days	24 Hours
Goat	8-10	18-21 Days	2-3 Days
Sheep	9-14	15-18 Days	1-3 Days
Pig	8-10	21 Days	1-5 Days
Camel	36-48	14 Days	3-5 Days

Different Live Stock Gestation Period  & Chromosome Number

	Gestation Period	2n
Cow	283 Days	60
Buffalo	310 Days	50
Goat	148 Days	60
Sheep	150 Days	54
Pig	114 Days	38
Camel	391 Days	74

Average composition of milk in different mammals (in %)

AgriExam	Water	Fats	Protein	Lactose	Ash
Cow	87.27	3.75	3.58	4.96	0.70
Buffalo	82.76	7.38	3.60	4.50	0.80
Goat	87.00	4.25	3.52	4.25	0.86
Sheep	79.50	8.60	5.50	4.50	1.00
Human	87.40	4.30	1.25	6.80	0.25