Ovarian Activity of Dromedary (Single Humped) Camel (Camelus dromedarius) in North-Eastern Nigeria

Yahaya, Muhammad Sanusi; Takahashi, Junko; Matsuoka, S; Alaku, O.

doi:10.5713/ajas.1999.868

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It may also be connected to the relatively cheaper cost of camel meat compared to beef. A study reported that an average of 3,400 camels are slaughtered annually for meat in Maiduguri abattoir in Borno State, northeastern Nigeria (Yahaya et al 1999). A large number of camel pastoralists were found in northeastern Nigeria and a number of approximately 26,866 camels in the early 1990s (FDLPCS, 1992).…”

Section: Introductionmentioning

confidence: 99%

Herd growth parameters and constraints of camel rearing in Northeastern Nigeria

et al. 2017

View full text Add to dashboard Cite

The one-humped camel, Camelus dromedarius, is an important pack and ride, dairy and meat animal in semi-arid northeastern Nigeria. This study was carried out to document reproductive information for scientists and farmers on camel rearing for improved productivity. A structured open-ended questionnaire on herd growth parameters and constraints of camel-rearing in the region was administered to 147 respondents. Results showed that most camel owners were middle aged, married, Arab men with over 20 years of experience in camel-rearing. The camels were made up of predominantly mixed breeds originating from eastern and northern Africa. Sexually matured heifers are detectable at three years of age, have good body conformation and are receptive to bulls during estrus. They have a long rutting period that stretched from rainy to harmattan seasons (July to January). Length of gestation is 13 months, and pregnancy is detectable by observing a successfully mated cow raising her tail on being approached by a bull at two weeks into pregnancy or the distension of the abdominal region towards mid pregnancy. Up to 60% conception rate was reported while age of cow at first parturition was five years. Other herd growth parameters reported include calf mortality rate of up to 40%, milking duration of one year and productivity of at least 10 calves per cow per life time. Only 4% of respondents in this study consult veterinary care while few (23%) respondents helped the dam to suckle its new born. Abortion, biting flies, trans-border conflicts and armed banditries were the major constraints to camel production in the study area. It was concluded that despite the knowledgeability of camel herders in this study, there appears to be poor herd management that needs to be addressed by adequate education and access to veterinary care in order to improve productivity.

show abstract

Section: Introductionmentioning

confidence: 99%

Herd growth parameters and constraints of camel rearing in Northeastern Nigeria

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown a distinct seasonal breeding pattern in female camels kept in Egypt (Shalash, 1965;El-Wishy and Ghoneim, 1986), Saudi Arabia (Abdel-Rahim et al, 1994), United Arab Emirates (Abou-Ela, 1994), Morocco (Sghiri and Draincourt, 1999) and Japan (Yahaya et al, 1999). Females kept in these countries show higher breeding activity during winter and spring than summer and autumn seasons.…”

Section: Introductionmentioning

confidence: 93%

Effect of Season and Age on the Ovarian Size and Activity of One-Humped Camel (Camelus dromedarius)

Ali¹,

Ahmad²,

Akhtar³

et al. 2007

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

In this project, ovarian size and activity during the peak (November-April) and the low (May-October) breeding seasons in young and adult camels were studied. Ovaries of 92 camels (Camelus dromedarius), with clinically normal reproductive tracts, aged 3-15 years and slaughtered at Faisalabad or Lahore abattoirs over a period of 24 months, were collected. Jugular blood was collected from each animal before slaughter; the serum was separated and analyzed for oestradiol concentration. The size (length, width and thickness) and weight of each ovary were measured. Grossly observable Graafian follicles were counted and their diameter was measured using Vernier Calipers. The camels having ovaries presenting follicles more than 5 mm in diameter were taken as having active ovaries. The results showed that ovarian length, width and weight were significantly higher (p<0.05) during the peak than the low breeding season. The percentage of active ovaries was also significantly higher (p<0.01) during the peak than the low breeding season. However, the effect of season on ovarian thickness was non-significant. Similarly, the ovarian length, width, thickness, weight and activity did not vary significantly between young (3-7 years old) and adult (8-15 years old) animals. Serum oestradiol concentrations were significantly higher (p<0.05) during the peak (67.70±1.36 pg/ml) than the low breeding season (15.25±1.54 pg/ml). It was concluded that in Pakistani camels ovarian size and activity were higher during the peak than the low breeding season. However, age of the camel (from 3 to 15 years) had no effect on these parameters.

show abstract