Effect of increasing dosage of a multi-mineral-vitamin supplement on productive performance and blood minerals of fattening male Ghezel × Afshar lambs
Autor: | E. Mahjoubi, O. Afsarian, Mehdi Hossein Yazdi, A. H. Khaltabadi-Farahani, Mehdi Kazemi-Bonchenari |
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Rok vydání: | 2019 |
Předmět: |
Male
040301 veterinary sciences Phosphorus concentration animal diseases Iran Biology Body weight 0403 veterinary science Random Allocation Vitamin supplement Blood serum Animal science Food Animals Animals Dry matter Completely randomized design Minerals Sheep Dose-Response Relationship Drug 0402 animal and dairy science Vitamins 04 agricultural and veterinary sciences Animal Feed 040201 dairy & animal science Diet Improved performance Blood chemistry Dietary Supplements Animal Science and Zoology |
Zdroj: | Tropical Animal Health and Production. 51:2559-2566 |
ISSN: | 1573-7438 0049-4747 |
Popis: | This study was conducted to evaluate the effects of supplementation with different levels of mineral-vitamin supplement (MVS) on performance and health of fattening lambs. Thirty-nine fattening male Ghezel× Afshar lambs (averaging body weight 31.02 ± 3.46 kg) were used in a completely randomized design for a period of 84 days. Treatments consisted of 0 (CON), 15 (MVS15), or 30 (MVS30) g/day of MVS mixed into the concentrate. The results showed that inclusion of MVS in the ration linearly enhanced body weight (BW) on day 29 (P 0.002), 45 (P = 0.05), and 70 (P 0.002). Dry matter intake (DMI) was increased linearly (P 0.02) and quadratically (P 0.001) with increasing supplement between days 58 and 70. Overall DMI tended (P = 0.1) to be greater for the MVS 30 treatment. Total average daily gain (ADG), ADG between days 16 and 29, days 58 and 70, total gain: feed ratio, gain: feed ratio between days 16-29 and days 58-70 linearly increased with increasing amount of MVS in the ration (P 0.01). The days with loose fecal scores were not affected by treatments (P 0.05). There was a linear and quadratic (P 0.01) effect on serum Ca concentration. Phosphorus concentration tended to quadratically increase (P = 0.06) with MVS. Blood serum Zn increased linearly (P = 0.01) with increasing level of MVS. Collectively, the results showed that, under the conditions of the current experiment, MVS addition to ration improved performance of fattening lambs. |
Databáze: | OpenAIRE |
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