Oestrous and ovarian activity of subtropical fat-tailed Rahmani sheep and their response to light treatment

Aboul-Naga, Adel; Aboul-Ela, M.B.; El-Nakhla, S. M.; Mehrez, A. Z.

doi:10.1017/s0021859600080023

Cited by 9 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Early in the eighties of last century, an interest trial was carried out by Animal Production Research Institute to establish a nucleus herd of Zaraibi goats, and series of studies had been carried on. Aboul-Ela et al (1988) reported variable ovulation rates, ranging from 1 to 6, with a mean of 2.6 ova's. Abdel-Raheem (1998.…”

Section: Main Local Breeds Zaraibi Goat (Egyptian Nubian)mentioning

confidence: 99%

Review of Literature for Sheep and Goat RESEARCH and development in Egypt, Since the Forties: III. Local and Exotic Goat Breeds, Production Performance, and Breeding Programs

Aboul –Naga,

Abo Amo,

Abdel-Aal

et al. 2023

Journal of Animal and Poultry Production

View full text Add to dashboard Cite

Goats are the most efficient animals in converting poor feed resources into valuable food commodities, than other farm animals. It is emerged as a good source of food, income, and employment for rural societies, especially in less favoured environments. Distribution of goats in the country, under different production systems were presented. Four major local goat breeds are widely distributed in Egypt, i.e., Baladi in the Delta, Saidi in Upper Egypt, Barki in Western Desert and the Zaraibi (Egyptian Nubian) as potential dairy prolific breed, in northeast Delta. Minor local goat breeds are Wahati in the New Valley, Black Sinai in Sinai Peninsula, and Abou Ramada-Halaieb-Shalateen goats. Production performance (growth, reproduction and milk production) of the major local breeds reported in the literature are tabulated and discussed. Exotic breeds introduced to the country, i.e. Damascus, Alpine, Angora, Anglo Nubian, and Boer, along with their breeding and crossing programs with local goat breeds were reported. The authors recommended the promotion of the socioeconomic role of goats for the poor rural households and women; and taking an advantage of the goat adaptability to harsh conditioned, in the hot dry environment. Improving genetic potentials of Zaraibi goats for prolificacy and dairy characteristics, and crossing Damascus goats with Barki and Baladi goats are recommended for improvement of local goats.

show abstract

Section: Main Local Breeds Zaraibi Goat (Egyptian Nubian)mentioning

confidence: 99%

Review of Literature for Sheep and Goat RESEARCH and development in Egypt, Since the Forties: III. Local and Exotic Goat Breeds, Production Performance, and Breeding Programs

Aboul –Naga,

Abo Amo,

Abdel-Aal

et al. 2023

Journal of Animal and Poultry Production

View full text Add to dashboard Cite

show abstract

“…However, Aboul-Naga and Aboul-Ela (1984) attributed this effect to inherited internal physiological rhythm determining the cycling activity of a ewe under a given environmental condition. However, Mousa (1986), Aboul-Naga et al (1987), Lahlou-Kassi and Boukhliq (1988) and Aboul-Ela and Chaemineau (1989) working on different subtropical fattailed ewes reported that the seasonal changes in oestrous and ovulation activity could be attributed to changes in daylength. The authors mentioned that a strong relationship existed between oestrous activity and reproductive performance of subtropical sheep flocks.…”

Section: A-fertility Traits: Conception Rate (Cr)mentioning

confidence: 99%

Reproductive Performance of a Commercial Flock of Subtropical Neimi Sheep in Saudi Arabia

Barghouth

2000

Journal of Animal and Poultry Production

View full text Add to dashboard Cite

This study was carried out on a commercial flock of Neimi sheep belonging to Al-Gassim Agric. Company in the mid-region of Saudi Arabia. The work aimed at studying the reproductive performance of this flock under accelerated lambing system. The traits used to determine reproductive efficiency were fertility traits (i.e. conception rate, ewes lambed/ ewes joined, ewes aborted/ewes conceived and ewes with stillborn lambs/ewes conceived), fecundity traits ( lambs born and weaned/ewes joined) and prolificacy traits (litter size at birth and weaning). Age of ewe affected significantly ewes lambed/ewes joined, ewes aborted/ewes conceived and lambs born and weaned/ewes joined. Generally, all traits increased with age except percentages of ewes aborted and those with stillborn lambs which decreased with age but increased again for the eldest ewes. Autumn-bred ewes had the best reproductive performance, whereas those bred in winter had the worst. The effect of breeding season was significant on all traits except on litter size at birth and weaning.

show abstract

Breeding activity of two subtropical Egyptian sheep breeds under accelerated lambing system

Aboul-Naga¹,

Hussein²,

Aboul-Ela³

et al. 1991

Small Ruminant Research

View full text Add to dashboard Cite

Oestrous and ovarian activity of subtropical fat-tailed Rahmani sheep and their response to light treatment

Cited by 9 publications

References 11 publications

Review of Literature for Sheep and Goat RESEARCH and development in Egypt, Since the Forties: III. Local and Exotic Goat Breeds, Production Performance, and Breeding Programs

Review of Literature for Sheep and Goat RESEARCH and development in Egypt, Since the Forties: III. Local and Exotic Goat Breeds, Production Performance, and Breeding Programs

Reproductive Performance of a Commercial Flock of Subtropical Neimi Sheep in Saudi Arabia

Breeding activity of two subtropical Egyptian sheep breeds under accelerated lambing system

Contact Info

Product

Resources

About