Etude des paramètres zootechniques de la race Ndama en milieu traditionnel villageois en Gambie

Leperre, P.; Dwinger, R.H.; Rawlings, Philip; Janneh, L.; Zürcher, G; Faye, Jacques; Maxwell, J M

doi:10.19182/remvt.8959

Cited by 10 publications

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“…Indeed, BCS offers a good estimate of the quantity of lipids stored, and its variations are a good indicator of the energy balance (Lefebvre et al, 2022). It also allows an indirect assessment of the animal's nutritional status (Leperre et al, 1992). In Chad, the animals do not receive food supplements.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and Antimicrobial Susceptibility of Escherichia coli Isolated from Goats in the Mekong Delta, Vietnam

Hachim¹,

Hervé²,

Jean-Pierre³

et al. 2024

WVJ

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A cow can give birth to an average of 6-7 calves in her entire reproductive period. The remaining oocytes could be used for the in vitro production of embryos. The present study was conducted to evaluate the effects of ovarian and non-ovarian factors on the follicular population and oocyte maturation of three Chadian cattle breeds (Arab, Kouri, and Toupouri). For this purpose, the ovaries of 166 cycled cows were collected at the Farcha slaughterhouse of Chad and placed individually in labeled conical tubes containing 0.9% NaCl and 0.5 mg/ml penicillin-streptomycin. After clearing the ovaries of tissue debris, they were weighed, and the follicles were counted. The diameter of each follicle was measured and classified into three categories. A total of 2734 oocytes were collected in 28 days with a minimum of 97 per day by the slicing method using a 10X stereoscope. They were then classified into four groups according to the structure of their cumulus oophorus. Immature oocytes (class 1 and 2 [1455]) were placed in different culture media consisting of Minimum Essential Medium (MEM) alone, MEM with 10% follicular fluid, and MEM with 50% follicular fluid for oocyte maturation. The results indicated that the mean follicular population and mean oocyte yield were 24.71 ± 0.88 and 11.65 ± 0.94, respectively. The mean oocyte index and the number of cultivable oocytes for in vitro embryo production (class 1 and 2) were 1.03 ± 0.23 and 1.65 ± 0.94, respectively. The number of follicles observed in the age group of 6-9 years was higher than in other age groups. Oocyte yield was significantly higher in cows with a body condition score of 4-5 compared to average and lean cows. Among the different culture media used for oocyte maturation, the medium consisting of MEM plus 10% follicular fluid recorded a higher maturation rate than the other culture media. Cows aged 6-9 years had a higher maturation rate than other age groups. In conclusion, the good follicle (follicle that produced oocyte) and appropriate oocyte performance were observed in cows with body condition score 3-5 and an age range of 6-9 years.

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Section: Discussionmentioning

confidence: 99%

Prevalence and Antimicrobial Susceptibility of Escherichia coli Isolated from Goats in the Mekong Delta, Vietnam

Hachim¹,

Hervé²,

Jean-Pierre³

et al. 2024

WVJ

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Effect of a single dry season anthelmintic treatment of N'Dama cattle on communal pastures in The Gambia

1995

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The effect of a single anthelmintic treatment of cattle during the early dry season was studied. One hundred and sixty-six N'Dama cattle, 1-3 years old, were selected from five herds. There were 65 males and 101 females divided into two groups of 83 animals each. One group was treated with fenbendazole at 7.5 mg/kg body weight by mouth in November 1992; the other group remained as the untreated control. At monthly intervals from November 1992 to April 1993, each animal was weighed and the number of eggs/g of faeces (epg) was determined. The infective larvae (L3) were examined following culture of pooled samples from each group of animals. In April 1993, 6 animals (3 treated and 3 controls) from the herds under study were necropsied. The difference in the weight gains (4.6 kg) of the two groups was highly significant (p < 0.0001). The difference in the weight gains and the epg between the treated and control groups was influenced by the age of the animals. Of the treated animals, one contained no nematodes, one contained only 25 Oesophagostomum radiatum, and the third contained 25 Cooperia L4. The three untreated animals were all infected. It was concluded that the treatment in early dry season, with an anthelmintic effective against both adults and larvae, led to a significant reduction in egg counts, to elimination of adults and hypobiotic larvae and, consequently, to an increase in the body weight gain by the treated animals.

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Trypanosomosis prevalence in natural field-based infection: insights into systematic review and meta-analysis of studies from 1980 to 2018 on The Gambian ruminants with special emphasis on cattle

Olaniyan

Kaya

Secka

2020

Trop Anim Health Prod

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Etude des paramètres zootechniques de la race Ndama en milieu traditionnel villageois en Gambie

Cited by 10 publications

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Prevalence and Antimicrobial Susceptibility of Escherichia coli Isolated from Goats in the Mekong Delta, Vietnam

Prevalence and Antimicrobial Susceptibility of Escherichia coli Isolated from Goats in the Mekong Delta, Vietnam

Effect of a single dry season anthelmintic treatment of N'Dama cattle on communal pastures in The Gambia

Trypanosomosis prevalence in natural field-based infection: insights into systematic review and meta-analysis of studies from 1980 to 2018 on The Gambian ruminants with special emphasis on cattle

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