Effect of different feeding regime on body weight, ovaries sïze fevelopments and blood estradiol, progesterone level in pre-pubertal she-camel (Camelus dromedarius)

Al-Saiady M.Y., Mogawer H.H., Al-Mutairi Sallal E., Bengoumi M., Faye Bernard, Musaad Abdelgader, Gar-Elnaby A.. 2012. Effect of different feeding regime on body weight, ovaries sïze fevelopments and blood estradiol, progesterone level in pre-pubertal she-camel (Camelus dromedarius). Journal of Animal and Veterinary Advances, 11 (19) : 3522-3526.

Quartile : Q4, Sujet : VETERINARY SCIENCES

Résumé : The present study aimed ta investigate the effect of nutrition on body weight gain, avaries development, blood components (total protein, alblllllen, globulin, cholesterol and glucose) and hormone level (estradiol and progesterone) in pre-pubertal she-camels. Fourteen dromedary she-camels (Camelus dromedarius) were divided in two groups CA and B) similar body weight and age ai the siart of the experiment (200 kg and 12 month, respectively). Group A received diet with 13% Crude Protein (CP) and 2.9 Meal Metabolisable Energy (ME). Group B received the traditional diet of the fann. Both diets contained 25:75 forage:concentrate. Individual feed intake was calculated after 14 days of adaptation period. Feed offered and arts was recorded daily during the whole experimental period of 12 months. Blood samples were taken from each group every 15 days throughout the experimental period. Estradiol, progesterone concentrations were measured using ELISA kits. Body weight and average daily gain for the Ist 6 months did not show significant differences between treatments. On the contrary for the last 6 months, treatment A significantly increased body weight and daily weight gain when compared to B (70.07±8.17 kg and 0.389±0.05 kg day-' vs. 37.86±8.17 kg and 0.210±O.05 kg day-l, respectively. Group A was more efficient converting feed to body weight comparing with group B. Feed Conversion Ratio (FCR) for the whole period was 11.25 and 13.74 for Group A and B, respectively. Group B had greater ovary size than Group A but the difference was not significant. Size of right ovary was smaller than the left one and season had positive effects on both right and left ovary sizes. Greater ovary sizes were observed in Winter and Spring comparing with Swnmer and Autumn. Group A had higher blood estradiollevel comparing with Group B while there was no difference between groups in progesterone levels. Il was concluded that feeding regirne did not affect body weight, daily body weight gain and blood progesterone levels but improved feed conversion ratio and blood estrogen levels.

Mots-clés Agrovoc : dromadaire, régime alimentaire, gain de poids, composition du sang, dimension, ovaire, maturité sexuelle, hormone sexuelle, progestérone, oestrogène, Camelus dromedarius

Mots-clés géographiques Agrovoc : Arabie Saoudite

Classification Agris : L02 - Alimentation animale
L53 - Physiologie animale - Reproduction
L40 - Anatomie et morphologie des animaux
L52 - Physiologie animale - Croissance et développement

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Al-Saiady M.Y., ENFI (SAU)
• Mogawer H.H., ENFI (SAU)
• Al-Mutairi Sallal E., Range Protection and Improvement Center in Al-Jouf Area (SAU)
• Bengoumi M., Range Protection and Improvement Center in Al-Jouf Area (SAU)
• Faye Bernard, CIRAD-ES-UMR SELMET (SAU)
• Musaad Abdelgader, Range Protection and Improvement Center in Al-Jouf Area (SAU)
• Gar-Elnaby A., King Saud University (SAU)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/568547/)

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