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Universidad de Chile (2011)

Efecto de la suplementación con frutos de espino (Acacia caven (Mol.) Mol.) en la condición corporal, peso vivo en último tercio de gestación y peso al nacimiento de corderos en ovejas Suffolk

Gómez García, Daniela Francisca

Titre : Efecto de la suplementación con frutos de espino (Acacia caven (Mol.) Mol.) en la condición corporal, peso vivo en último tercio de gestación y peso al nacimiento de corderos en ovejas Suffolk

Auteur : Gómez García, Daniela Francisca

Université de soutenance : Universidad de Chile

Grade : Ingeniero Agrónomo Mención Producción Animal 2011

Résumé
Acacia caven (Mol.) Mol. brushwood dominates in semi-arids areas of Central Chile. It’s fruits or pods are produced when the grassland has not yet emerged. Studies under similar conditions have shown the possibility of using Acacias fruits or leaves as a supplement for ruminants in different physiological states. This research was conducted at the German Greve Silva Experimental Station and its was aimed to evaluate the supplementation with Acacia caven fruits on body condition score and live weight in late pregnancy of Suffolk sheep and birth weight of their lambs. Treatments were arranged in two groups with 14 animals each, on paddocks with herbaceous strata. One group was supplemented with Acacia caven fruits (200 g per animal per day). Live weight and body condition score were measured every ten days in late pregnancy and once post-partum. Body weight at birth was measured for each lamb, one day after the partum. Three samples of the grassland and one sample of the supplement were analyzed chemically. Results showed that supplementation with Acacia caven fruits improved body condition score during late pregnancy. Supplementation did not change body weight in this period. Post-partum body condition score and body weight were similar between treatments (p>0.05). Birth weight of lambs had no differences between treatments. It was concluded that Acacia caven fruits shown favorable nutritional characteristics and can be considered as a supplement for ruminants in late pregnancy, particularly in situations of poor quality pasture.

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Page publiée le 18 avril 2016, mise à jour le 12 juin 2018