Oestrous synchronisation and pregnancy rate following artificial insemination (AI) in South African indigenous goats

Figures & data

Table 1. Effect of breed and duration of progestagen treatment on oestrous synchronisation of Boer and unimproved indigenous goats.

	n	Oestrous response%	Onset of oestrous (Mean±SE) (h)	Oestrous duration (Mean±SE) (h)
Boer goat + short-term	25	(25)100^a	35.5±0.1^a	40.6±0.2^a
Boer goat + long-term	22	(22)100^a	34.5±0.1^a	40.4±0.2^a
Unimproved + short-term	14	(12) 85.7^a	33.1±0.2^a	33.1±0.2^a,b
Unimproved + long-term	13	(12) 92.3^a	31.4±0.1^a	26.5±0.2^b
Boer	47	(47)100^a	35.1±0.1^a	40.5±0.2^a
Unimproved indigenous	27	(24) 88.9^b	32.3±0.2^a	29.9±0.2^b
Short-term progestagen	39	(37) 94.9^a	34.7±0.2^a	37.9±0.2^a
Long-term progestagen	35	(34) 97.1^a	33.4±0.1^a	35.2±0.2^a
^a,bValues with different superscripts within same cell differ significantly (p <0.05).

Table 2. Pregnancy rate of Boer and unimproved indigenous goats following oestrus synchronisation and artificial insemination.

Breed	n	Progestagen treatment	Semen	Pregnancy rate%
Boer goat	12	Short-term	Raw	(6) 50
	13		Frozen/thawed	(4) 30.8
	11	Long-term	Raw	(5) 36.4
	11		Frozen/thawed	(4) 36.4
Unimproved indigenous goat	8	Short-term	Raw	(4) 50
	6		Frozen/thawed	(3) 50
	7	Long-term	Raw	(2) 28.6
	6		Frozen/thawed	(2) 33.3
Note: No significant differences.