Evaluation de la consommation d'un troupeau de chèvres laitières sur parcours forestier — Méthode d'observation directe des coups de dents — Méthode du marqueur oxyde de chrome

Meuret, Michel; Bartiaux-Thill, Nicole; Bourbouze, A.; Rosenberger, Sophie; M, Vernerey; Sourbier, Y.; Ninane, Véronique; Trojan, Michèle; Trojan, Marianne; Rouchy, Nathalie; André, Jamile Franceschi

doi:10.1051/animres:19850203

Cited by 44 publications

(22 citation statements)

References 6 publications

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“…His results for January and April are somewhat higher, and for May even more so (75% compared to 30%), while for July they are low (3.6%) compared to this study (49.9%). In summer, bushes and trees made their greatest contribution to the diet, and this agrees with Morand-Fehr (1982), Meuret et al (1985) and Rosenberger and Meuret (1985) for similar regions.…”

Section: Trees and Bushessupporting

confidence: 86%

“…Following the technique described by Meuret et al (1985), six representative animals in the flock were selected for observation. The characteristics of the Florida breed, the description of the area where the experiment took place, methodology and management have all been thoroughly described in other studies (Sanchez-Rodriguez et al, 1993;Peinado-Lucena et al, 1992).…”

Section: Methodsmentioning

confidence: 99%

“…Grass accounted for 52.6% of DM intake in summer (Table 2), and was the predominant dietary component. Rosenberger and Meuret (1985) and Meuret et al (1985) report lower figures for grass, at less than 25% of DMI. Mean daily grass intake was 845.7 g of DM or 47.8% of total annual intake (Table 1), on a par with figures of Wilson and Mulham (1980), Bryant et al (1979Bryant et al ( , 1980, Pfister and Malechek (1986a).…”

Section: Grassmentioning

confidence: 97%

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Dry matter intake in grazing dairy goats

Peinado-Lucena¹,

Gómez-Castro²,

Sánchez-Rodríguez³

et al. 1993

J. Anim. Feed Sci.

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The contribution of three strata of pasture (grass, woody species and acorns) to the diet of goats during a grazing season was studied. Results showed that in autumn-winter acorns (61.6%) were the dominant dietary dry-matter component, followed by woody species (25.8%) and grass (12.6%). The opposite was true in spring when the greatest contribution was from grass (61.1%), followed by woody species (37%) and acorns providing a mere 1.9%. In summer, however, woody species increased their contribution to 47.4%, thus constituting an important intake component for grazing goats in the region. Acorns proved to be an important resource, as they are produced at a time when there is a shortage of grass and when woody species have limited nutritional value. Results showed that goats should not be classed solely as browsers but placed midway between strictly herbivorous animals and true browsers, given the contribution of grass to their diet, although an opportunist capacity for adaptation to changes in the quality of available feeds should also be taken into account.

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Section: Trees and Bushessupporting

confidence: 86%

Section: Methodsmentioning

confidence: 99%

Section: Grassmentioning

confidence: 97%

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Dry matter intake in grazing dairy goats

Peinado-Lucena¹,

Gómez-Castro²,

Sánchez-Rodríguez³

et al. 1993

J. Anim. Feed Sci.

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“…La quantité de matière sèche ingérée (QI) par animal est donnée par la relation suivante (Meuret et al, 1985):…”

Section: Determination De L'ingestion Par La Methode D'observation DIunclassified

Relation entre disponibilités en Herbe, ingestion et activités alimentaires de béliers au pâturage

Mebirouk-Boudechiche¹,

Boudechiche²,

Ferhat³

et al. 2014

Arch. zootec.

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MOTS CLÉSAlgérie. Ingestion volontaire. ADDITIONAL KEYWORDSAlgeria. Voluntary intake. RÉSUMÉ C'est dans le but de juger d'une complémentation adéquate en fonction du disponible alimentaire, luimême fonction des saisons et dans la perspective d'améliorer la durabilité des systèmes d'élevage utilisateurs d'herbe, que on a entrepris ce travail en étudiant le comportement alimentaire et l'ingestion au pâturage de 5 béliers de race locale pâturant une prairie naturelle de plaine du nord-est algérien, et ce, durant trois saisons consécutives: automne, hiver et printemps. Parallèlement, la composition botanique et la valeur nutritive aussi bien de la prairie pâturée que des rations simulées par coup de dent des animaux (méthode de hand plucking) ont été évaluées. L'identification des espèces végétales constituant les rations ingé-rées, n'a cependant eu lieu qu'en période printanière, propice à cette opération. Les animaux ont ainsi privilégié la consommation de l'asphodèle (Asphodelus microcarpus) (70 %) en première position, puis des légumineuses (20 %) et enfin des graminées (10 %). Outre, durant les trois saisons, les béliers ont sélectionné une ration de meilleure qualité que le fourrage disponible (15,2 % matières azotées totales, MAT; 0,79 unité fourragère viande, UFV/kg MS et 14,5 % MAT; 0,71 UFV/kg MS pour le printemps). La quantité ingérée a été maximale au printemps (1,24 kg) et minimale en hiver (689 g) sans doute en relation avec le disponible alimentaire durant les deux saisons (627 vs. 97 kg MS/ha).Il en ressort que l'hiver et l'automne constituent la période creuse pour ces animaux en système extensif pour qui une complémentation en quantité s'avère nécessaire. D'un point de vue qualitatif, un déficit protéique s'observe durant les trois saisons surtout pour des animaux à l'engraissement. SUMMARYThe objective of this works was to evaluate a proper supplementation based on the seasonal availabililty of food to improve the sustainability of herbivore livestock systems. First feeding behaviour and food intake in grazing of five local rams in a native plain grassland in the north-east of Algeria were studied for three consecutive seasons: autumn, winter and spring. Meanwhile, the botanical composition and nutritional value of both the grazed meadow and the simulated animal bites (method of hand plucking) were evaluated. The identification of plant species ingested, however was done in springtime, the only season suitable for this operation. Animals preferred asphodel (Asphodelus microcarpus) (70 %), followed by legumes (20 %) and grasses (10 %). During the three seasons, the rams have selected a ration of better quality than the available forage (15.2 % CP, 0.79 UFV/kg DM and 14.5 % CP, 0.71 UFV/kg DM for spring). The amount ingested daily was maximum in spring (1.24 kg) and minimum in Archivos de zootecnia vol. 63, núm. 242, p. 278. MEBIROUK-BOUDECHICHE, BOUDECHICHE, FERHAT ET TAHARwinter (689 g) probably related to the food available during the two seasons (627 vs. 97 kg DM/ha). It shows that the winter an...

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“…Therefore, feeding strategy and diet composition seems to have a definite impact on intake. Diet composition can be determined either by direct observation (Meuret et al, 1985) by rumen content analysis (Cordesse, 1994) Walters and Evans (1979) and Meijs et al (1982) as reported by Leaver (1985) ( (Cordesse, 1994) or biting observations on grazing animals (Meuret et a1,1985). None of them are perfect; they all introduce bias.…”

Section: Introductionmentioning

confidence: 99%