The present work consisted in the use of biochemical and molecular nutrition blocks (BMN) in llamas during the last third of the gestation period, at the Agricultural Experiment Center of Condori (CEAC), located 49 km north of the city of Oruro, and 12 km north of the Caracollo population, in the province of Cercado. For this research work, we used 20 pregnant llamas in the last third of their gestation period, between the ages of 2 and 3 years old, 10 of which belonged to the Khara breed, and 10 to the Thampulli breed. Two corrals of 7 x 7 m., with adobe walls of a height of 1.80 m., a soil floor, and a metallic door, were built for the placement of the animals. The following ingredients were used for the preparation of the BMN blocks: 100 L of molasses, 75 kg of barley flour, 18 kg of alfalfa flour, 12 kg of sorghum flour, 30kg of mineral salt, 30 kg of Urea to the 46%, and 30 kg, of clay. The following variables were considered: Final body weight of the mother (before birth), increment of live weight of the mother by date, body weight of the mother (after birth), body weight of the llama calf, body weight gain of the mother, mother's food consumption, and physical-chemical analysis of the feeding blocks. The variables of the study were analyzed under a completely randomized design test, and for the discrimination of variable averages we used the Duncan test to a 95% of reliability. We came to the following conclusions: The greater increment of live weight was reported by llamas that received the BMV block as a dietary supplement, the gain was of 107.91 Kg/Llama, and the least was reported by those who did not receive the BMV blocks as a dietary supplement with and increment of 102.07 Kg/Llama. For the final live weight of the mothers, the greater number was reported by llamas that received the BMV blocks, reporting 112.0 Kg/Llama, the least was reported by those who did not receive the supplement with an increase of 105.10 Kg/Llama. Post-partum Llamas that received supplementation reported a live weight increase of 97.43 Kg/Llama, whereas those who did not receive the supplement reported an increase of 88.40 Kg/Llama. According to breed the Khara Llama reported an increase of 96.56 Kg/llama, while the Thampulli line reported an increase of 89.10 Kg/Llama. The greater live weight of the calf at birth was reported by those whose mothers were given the BMN supplements; reporting 11.50 Kg/Calf, while those whose mothers did not receive the supplement reported 9.60 Kg/ Calf. Therefore, we recommend the supplementation of the diet with biochemical and molecular nutrition blocks in the feeding of llamas in the last third of the gestation period to obtain calves with higher body weight at birth.
| Identifer | oai:union.ndltd.org:BGMYU2/oai:scholarsarchive.byu.edu:etd-6378 |
| Date | 01 January 2005 |
| Creators | Illanes Callejas, Janette |
| Publisher | BYU ScholarsArchive |
| Source Sets | Brigham Young University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Coverage | Oruro (Bolivia) |
| Rights | http://lib.byu.edu/about/copyright/ |
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