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L’objectif: le but de cette etude etait d’evaluer les teneurs seriques en sodium et en calcium ainsi que leurs intensites de transfert dans le CMPF au cours de la gestation chez les chevres elevees a Lubumbashi a zone tropicale. Methodologie et resultats: Cette recherche a ete menee sur 45 serums dont 15 provenant de chevres gestantes (Gg), 15 de leurs placentas (Pg) et 15 de leurs foetus (Fg) abattues dans les tueries du marche mzee Kabila a Lubumbashi. Les teneurs sodiques et calciques ont ete obtenues au spectrophotometre par dosage colorimetrique. Nous avons obtenu dans l’ensemble du CMPF 489,2±335,8 mmol/l (100%) pour le sodium et de 4,1±1,1 mmol/l pour le calcium. Les teneurs sodiques des chevres gestantes, placentas et foetus etaient respectivement de 121,0±69,2 mmol/l (24,7%), 197,0±225,8 mmol/l (40,3%) et 171,2±172,8 mmol/l (35%). L’evaluation statistique a revele que les natremies placentaire et foetale etaient significativement plus elevees que celles des femelles gestantes. Les calcemies moyennes etaient de 1,33±0,5 mmol/l (32,2%), 1.26±0,4 mmol/l (30.5%) et 1,54±0,7 mmol/l (37,3%), respectivement chez les chevres gestantes, les placentas et les foetus. L’evaluation statistique a revele des differences significatives entre la calcemie maternelle et foetale et entre la calcemie placentaire et foetale. Conclusion et application des resultats: Les resultats de cette recherche ont permis de comprendre qu’a climat tropical de Lubumbashi, la chevre gestante peut etre menacee d’hyponatremie, d’hypocalcemie et que la supplementassions s’avere necessaire. Mots-cles: Natremie, calcemie, potentialites de transfert, complexe maternello-placento-foetal, chevres en zone tropicale English Title: Evaluation of sodium and calcium serum content and their transfer potentials in the maternelloplacento-fetal complex (cmpf) of goats in the tropical zone English Abstract Objective: The aim of this study was to evaluate serum sodium and calcium levels and their transfer rates in MPFC during gestation in goats raised in Lubumbashi in tropical areas. Methods and results: This research was carried out on 45 serums of which 15 were from pregnant goats (Gg), 15 from their placentas (Pg) and 15 from their fetuses (Fg) slaughtered in the mzee Kabila market in Lubumbashi. The sodium and calcium contents were obtained by spectrophotometer by colorimetric determination. We obtained 489.2 ± 335.8 mmol / l (100%) for sodium and 4.1 ± 1.1 mmol / l for calcium in the CMPF as a whole. The sodium levels of pregnant goats, placentas and fetuses were respectively 121.0 ± 69.2 mmol / l (24.7%), 197.0 ± 225.8 mmol / l (40.3%) and 171.2 ± 172.8 mmol / l (35%). Statistical evaluation revealed that placental and fetal serum natremia were significantly higher than those of pregnant females. Mean calcemia were 1.33 ± 0.5 mmol / l (32.2%), 1.26 ± 0.4 mmol / l (30.5%) and 1.54 ± 0.7 mmol / l (37.3%), Respectively in pregnant goats, placentas and fetuses. Statistical evaluation revealed significant differences between maternal and fetal calcium and between placental and fetal calcium. Conclusion and application of results: The results of this research made it possible to understand that in the tropical climate of Lubumbashi, the pregnant goat may be threatened with hyponatraemia, hypocalcemia and that supplementation is necessary. Keywords: Natraemia, calcemia, transfer potential, maternal-placento-fetal complex, goats in tropical areas

journal of applied biosciences

Évaluation des teneurs sériques en sodium et en calcium et de leurs potentialités de transfert dans le complexe maternello-placento-foetal (CMPF) des chèvres en zone tropicale