Recent progress in the assessment of mineral requirements of goats

Meschy, François

doi:10.1016/s0301-6226(00)00171-8

Cited by 84 publications

(70 citation statements)

References 19 publications

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“…The content of iodine measured in the commercial concentrate averaged 0.63 mg/kg of DM, whereas that measured in hay was 0.19 mg/kg of DM. The basal concentration of iodine in the control diet was 0.34 mg/kg of DM, which resulted in almost 50% of the dietary iodine concentration recommended for lactating goats (0.80 mg/kg of DM diet) by the National Research Council (NRC, 2007) and more close to recommended dietary level reported by Meschy et al (2000) that is assessed at 0.4 to 0.6 mg/kg of DM. However, these recommendations are based on a limited number of data, because a large and exhaustive database on iodine requirements in dairy animals is not available yet.…”

Section: Resultsmentioning

confidence: 67%

Effect of dietary iodine on thyroid hormones and energy blood metabolites in lactating goats

Nudda

Battacone

Bomboi

et al. 2013

Animal

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Aim of this work was to evaluate if long-term dietary supplementation of potassium iodide (KI) to dairy goats can influence metabolic and hormonal parameters. Thirty Sarda crossbred dairy goats were divided into three groups, which were orally administered 0 (control group; CON), 0.45 (low iodine group; LI) or 0.90 (high iodine group; HI) mg of KI/day, respectively. The daily dose of KI (76.5% of iodine) was administered as salt dissolved in water for 8 weeks. Plasma contents of nonesterified fatty acids (NEFA), urea, glucose, insulin, free triiodothyronine (FT 3 ) and thyroxine (FT 4 ) were determined weekly. Iodine supplementation increased significantly the FT 3 hormone ( P 5 0.007) and FT 3 /FT 4 ratio ( P 5 0.001) and tended to influence the FT 4 hormone ( P 5 0.059). An iodine level 3 week of sampling interaction for NEFA ( P 5 0.013) evidenced a temporary concentration increase in supplemented groups. The 'Revised Quantitative Insulin Sensitivity Check Index' increased with KI supplementation ( P < 0.01). Blood urea nitrogen (BUN) and insulin were lowered ( P < 0.01) by iodine supplementation (groups LI and HI; P < 0.01). The glucose concentration evidenced an iodine level 3 week of sampling interaction ( P 5 0.025) due to an unexpected and temporary increase of its concentration in the CON group. Glucose concentration was decreased by KI supplementation only in LI group ( P , 0.05). In conclusion, the daily supplementation of low doses of KI can improve insulin sensitivity and decrease BUN in dairy goats.

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Section: Resultsmentioning

confidence: 67%

Effect of dietary iodine on thyroid hormones and energy blood metabolites in lactating goats

Nudda

Battacone

Bomboi

et al. 2013

Animal

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“…breed, lineage, system of feeding, milking, differences between individual animals, health status and age, seasonal changes, order and stage of lactation, life conditions and technology of keeping the animals, and processing the milk (Zeng & Escobar 1996;Meschy et al 2000;Soryal et al 2005;Morand-Fehr et al 2007). Knowles et al (1997) claims, that I and Se concentrations in cow milk can be quite easily manipulated by supplementation.…”

mentioning

confidence: 99%

Effects of lactation stage, breed, and lineage on selenium and iodine contents in goat milk

Rozenská¹,

Hejtmánková²,

Kolihová³

et al. 2013

Czech J. Food Sci.

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Rozenská L., Hejtmánková A., Kolihová D., Miholová D. (2013): Effects of lactation stage, breed, and lineage on selenium and iodine contents in goat milk. Czech J. Food Sci., 31: 318-322.Selenium and iodine contents were analysed in goat milk coming from three commercially oriented farms in east (farm A) and south (farms B, C) Bohemia. The average iodine level found in milk from farm A was 393.6 ± 111.2 µg/kg, from farm B 584.9 ± 186.9 µg/kg, and from farm C 397.6 ± 223.4 µg/kg. The average level of selenium found in milk from farm A was 9.19 ± 2.17 µg/kg, from farm B 6.20 ± 0.53 µg/kg, and from farm C 6.57 ± 2.29 µg/kg. The results showed significantly strong correlations between selenium and iodine contents in milk and in mineral supplement (r = 0.91 and 0.92, respectively). On average, 76.6% of the iodine in milk was transferred to the whey fraction. In the case of selenium, it was found out that 23.8% was transferred from milk to the whey fraction. As a consequence of the mineral licks used, the correlation between selenium and iodine contents in time was not proved (r = 0.06).

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“…The vitamin E requirement may therefore be defined as the amount required preventing peroxidation in the particular subcellular membrane which is most susceptible to peroxidation. Moreover, Se is a component of selenoproteins and is involved in immune and neuropsychological function in the nutrition of animals (Meschy, 2000). Most nutritionists assume that reproductive performance will not be limited when animals are fed diets that meet the NRC levels.…”

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confidence: 99%

<i>Short Communication</i> Effect of selenium-vitamin E injections of ewes on reproduction and growth of their lambs

Koyuncu¹,

Yerlikaya²

2007

SA J. An. Sci.

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The experiment was conducted on 90 Karacabey Merino ewes divided into three groups. The first group of ewes was treated with 5 mL 0.1% sodium selenate, the second with 5 mL 0.1% sodium selenate and 250 mg vitamin E, while the third one was a control group. The effect of intra-muscular injection of selenium (Se) and Se plus vitamin E on oestrus, fertility, prolificacy, number of lambs reared the weight of lambs at birth and the live weight gain for 60 days was investigated. The injections of Se plus vitamin E significantly increased the incidence of oestrus, fertility and prolificacy in ewes, lamb body weight at day 60 and daily weight gain of ewes for 60 days postpartum compared with the control group.

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Recent progress in the assessment of mineral requirements of goats

Cited by 84 publications

References 19 publications

Effect of dietary iodine on thyroid hormones and energy blood metabolites in lactating goats

Effect of dietary iodine on thyroid hormones and energy blood metabolites in lactating goats

Effects of lactation stage, breed, and lineage on selenium and iodine contents in goat milk

<i>Short Communication</i> Effect of selenium-vitamin E injections of ewes on reproduction and growth of their lambs

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