Use of Supplements for Increasing Performances of Suckling Martinik Ewes When Fed Tropical Forages

Experiments have been carried out to determine the effects of supplementation upon milk production and growing performances with hair sheep Martinik ewes weighing 48 ± 4 kg liveweight (LW). In a first trial, 6 single bearing ewes (group GS) were offered individually a daily 0.5 kg of commercial pellets. They were compared to the control group (GN; 6 ewes) with no supplement during 10 weeks of lactation. Basal diet was chopped Digitaria decumbens grass ad libitum. In a second trial, level of supplementation was adapted to the ewes’ litter size: 6 twins bearing ewes (TW) and 6 single (SI). Mean milk production (oxytocin method) reached 1186 and 940 g.d-1 (P\u3c 0.05) for GS and GN ewes, respectively. Body condition score (BCS) of GS ewes maintained during lactation while those of GN ewes slightly decreased (P\u3c 0.05). No difference was recorded for lambs daily weight gain (DWG). Milk production varied significantly (P\u3c 0.05) according to the litter size: 926 and 1246 g.d-1 for SI and TW, respectively. The BCS of TW ewes decreased more than those of SI ewes (-1.4 vs –1.0). Individual DWG were different (P\u3c 0.01): 216 and 150 g.d-1 for single and twin lamb, respectively. It is concluded that use of supplements is necessary in intensive breeding conditions (high reproduction frequency and productivity), in order to allow high levels of performances when ewes are fed tropical forages

13C—methyl formate : observations of a sample of high mass starforming regions including Orion—KL and spectroscopic characterization

We have surveyed a sample of massive star-forming regions located over a range of distances from the Galactic centre for methyl formate, HCOOCH3, and its isotopologues H13COOCH3 and HCOO13CH3. The observations were carried out with the APEX telescope in the frequency range 283.4-287.4 GHz. Based on the APEX observations, we report tentative detections of the 13C-methyl formate isotopologue HCOO13CH3 towards the following four massive star-forming regions: Sgr B2(N-LMH), NGC 6334 IRS 1, W51 e2 and G19.61-0.23. In addition, we have used the 1 mm ALMA science verification observations of Orion-KL and confirm the detection of the 13C-methyl formate species in Orion-KL and image its spatial distribution. Our analysis shows that the 12C/13C isotope ratio in methyl formate toward Orion-KL Compact Ridge and Hot Core-SW components (68.4±10.1 and 71.4±7.8, respectively) are, for both the 13C-methyl formate isotopologues, commensurate with the average 12C/13C ratio of CO derived toward Orion-KL. Likewise, regarding the other sources, our results are consistent with the 12C/13C in CO. We also report the spectroscopic characterization, which includes a complete partition function, of the complex H13COOCH3 and HCOO13CH3 species. New spectroscopic data for both isotopomers H13COOCH3 and HCOO13CH3, presented in this study, has made it possible to measure this fundamentally important isotope ratio in a large organic molecule for the first time.This work was supported by the National Science Foundation under grant 1008800. We are grateful to the Ministerio de Economia y Competitividad of Spain for the financial support through grant No. FIS2011-28738-C02-02 and to the French Government through grant No. ANR-08-BLAN-0054 and the French PCMI (Programme National de Physique Chimie du Milieu Interstellaire). This paper makes use of the following ALMA data: ADS/JAO. ALMA#2011.0.00009.SV.ALMAis a partnership of ESO (representing its member states), NSF (USA), and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO, and NAOJ. C.F. thanks Dahbia Talbi, Eric Herbst, and Anthony Remijan for enlightening discussions. Finally, we thank the anonymous referee for helpful comments

J. Humlum. — La géographie de l'Afghanistan. Etude d'un pays aride.

Despois Jean. J. Humlum. — La géographie de l'Afghanistan. Etude d'un pays aride.. In: Revue de géographie alpine, tome 48, n°1, 1960. pp. 212-213

Les « oueds sous-marins » du Golfe de Gabès et les « canali » du Golfe de Venise

Despois Jean. Les « oueds sous-marins » du Golfe de Gabès et les « canali » du Golfe de Venise. In: Bulletin de l'Association de géographes français, N°102, 14e année, janvier 1937. pp. 2-5

Aperçu sur l'économie libyenne.

Despois Jean. Aperçu sur l'économie libyenne. In: Annales de Géographie, t. 71, n°385, 1962. pp. 334-335

Essai sur l'habitat rural du Sahel tunisien

Despois Jean. Essai sur l'habitat rural du Sahel tunisien. In: Annales de Géographie, t. 40, n°225, 1931. pp. 259-274

Les phénomènes thermiques au Sahara.

Despois Jean. Les phénomènes thermiques au Sahara.. In: Annales de Géographie, t. 71, n°384, 1962. pp. 215-216

Le peuplement préhistorique de l'Afrique du Nord, d'après M. L. Balout

Despois Jean. Le peuplement préhistorique de l'Afrique du Nord, d'après M. L. Balout. In: Annales de Géographie, t. 66, n°357, 1957. pp. 456-459