Seasonal variation in vitamin D status of beef cattle reared in the central United States

Casas, Eduardo; Lippolis, John D.; Kuehn, L. A.; Reinhardt, Timothy A.

doi:10.1016/j.domaniend.2015.03.003

Cited by 23 publications

(23 citation statements)

References 19 publications

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“…In cattle, as in other mammals, exposure to sunlight is one of the principal natural mechanisms through which vitamin D is produced. In grazing cattle, seasonal variation in vitamin D levels have been shown, with low levels in winter months (Casas et al, 2015). Even in intensively managed cattle, where a year-round supplementation is applied, low vitamin D levels have been shown in fresh cows, resulting in more than 25% of newborn calves to be vitamin Ddeficient (Nelson et al, 2016).…”

Section: Milk Yield and Longevitymentioning

confidence: 99%

“…Even in intensively managed cattle, where a year-round supplementation is applied, low vitamin D levels have been shown in fresh cows, resulting in more than 25% of newborn calves to be vitamin Ddeficient (Nelson et al, 2016). Due to minimal ultraviolet light radiation during winter, vitamin D levels are expected to be even lower from March to May (Krzyścin et al, 2011), suggesting spring-born calves to be immunologically deficient in terms of vitamin D levels (Casas et al, 2015). This could induce an increased disease susceptibility in these calves, eventually leading to a lower performance and longevity than in calves born during autumn.…”

Section: Milk Yield and Longevitymentioning

confidence: 99%

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Prenatal programming of later performance in dairy cattle

Eetvelde¹,

Opsomer²

2020

VDT

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BSTRACTPrenatal programming refers to the fact that insults during pre-and early postnatal life can have long-term consequences on the health and performance. In diary cattle, physiological conditions, such as maternal body growth, milk yield and parity, and environmental conditions during gestation can create a suboptimal environment for the developing fetus. As a consequence, adaptations of the placental and newborn phenotype take place. In addition, potential long-term effects of prenatal programming influence body growth, fertility, milk yield and longevity in dairy cows. These results suggest that the current management systems may pose a risk for the long-term health and performance of dairy cattle. Hence, in management practices, all pre-and postnatal aspects should carefully be considered in order to raise healthier and more productive dairy cows. SAMENVATTINGPrenatale programmering verwijst naar het feit dat invloeden tijdens het pre-en vroeg-postnatale leven gevolgen kunnen hebben voor de gezondheid en de prestaties op lange termijn. Fysiologische processen bij melkvee, zoals maternale groei, melkgift en pariteit, en omgevingsinvloeden tijdens de dracht kunnen een suboptimale omgeving creëren voor de zich ontwikkelende foetus. Deze resulteren in fenotypische aanpassingen van de placenta en van het pasgeboren kalf. Bovendien kan prenatale programmering op lange termijn een effect hebben op de groei, de vruchtbaarheid, de melkgift en de levensduur van melkkoeien. Deze resultaten suggereren dat de huidige managementsystemen een risico kunnen vormen voor de gezondheid en prestaties van melkvee op lange termijn. Daarom moeten de managementpraktijken alle pre-en postnatale aspecten zorgvuldig in overweging nemen om gezondere en productievere melkkoeien te fokken. A Prenatal programming of later performance in dairy cattlePrenatale programmering van latere prestaties bij melkvee M. Van Eetvelde, G. OpsomerMieke.Vaneetvelde@ugent.be Vlaams Diergeneeskundig Tijdschrift, 2020, 89 Continuing education 53

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Section: Milk Yield and Longevitymentioning

confidence: 99%

Section: Milk Yield and Longevitymentioning

confidence: 99%

Prenatal programming of later performance in dairy cattle

Eetvelde¹,

Opsomer²

2020

VDT

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“…Although swine are generally raised in confinement, they [ 21 ], like other agricultural animals including cattle [ 22 ] and chickens [ 23 ], have the capacity to synthesize vitamin D. Sun exposure in pigs, therefore, has the potential to increase the vitamin D content in pork. The objective of this experiment was to determine the effects of sunlight exposure of pigs on serum concentration as well as loin and subcutaneous adipose tissue content of 25(OH) and vitamin D3.…”

Section: Introductionmentioning

confidence: 99%

Sun exposure in pigs increases the vitamin D nutritional quality of pork

et al. 2017

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There is a high prevalence of vitamin D insufficiency and deficiency worldwide likely because of both limited sun-exposure and inadequate dietary intake. Meat, including pork, is not typically considered a dietary source of vitamin D, possibly because of management practices that raise pigs in confinement. This experiment determined the vitamin D content of loin and subcutaneous adipose tissue in sun-exposed finisher pigs. Two separate groups of pigs were used. The first group (28 white Landrace-Duroc) was assigned at random to either sunlight exposure (SUN) in spring and summer or confinement per standard practice (Control). The second (24 Yorkshire-Duroc-Landrace) underwent the same exposure protocol but was exposed in summer and fall or assigned to control (Control). A subsample of five SUN and four Control pigs, matched for weight and body condition score, was selected for slaughter from each group. Pigs (n = 10 SUN, n = 8 Control) had blood drawn for analysis of 25(OH)D3 concentration before/after sun exposure or control, and tissue samples were taken at slaughter for analysis of tissue vitamin D3 and 25(OH)D3 concentration. Three random samples from a single loin chop and surrounding adipose were collected and analyzed. Serum concentrations of 25(OH)D3 did not differ (P≥0.376) between treatments prior to sun exposure in either group, but was increased (time*treatment interaction, P<0.001) with SUN exposure. Total vitamin D content (D3 plus 25(OH)D3) of loin tissue was increased (P < 0.001) with sun exposure and averaged 0.997±0.094 μg/100g and 0.348±0.027 μg/100g for sun and control pigs, respectively. While exposure to sunlight increased (P = 0.003) tissue content of 25(OH) D in subcutaneous adipose tissue, vitamin D3 content was similar between treatments (P = 0.56). Sunlight exposure in pigs increased the vitamin D content of loin, and may provide an additional source of dietary vitamin D.

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“…Despite its important functions, deficiencies of VitD are frequently detected in animals like swine or cattle (Arnold et al, ; Casas, Lippolis, Kuehn, & Reinhardt, ; Dittmer & Thompson, ). Thus, in recent years, some studies have improved our knowledge about the metabolism of this vitamin in domestic animals and about measures focused on reducing VitD deficiencies (Flohr et al, ; Kolp, Wilkens, Pendl, Eichenberger, & Liesegang, ; Tousignant, Henry, Rovira, & Morrison, ).…”

Section: Introductionmentioning

confidence: 99%

Seasonal and dietary effects on Vitamin D deficiencies detected in wild boar from mid‐western Spain

Risco¹,

Gonçalves²,

Bravo

et al. 2019

Animal Physiology Nutrition

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Vitamin D (VitD) is involved in important mammalian physiological mechanisms, such as Ca-P metabolism, bone development and immunological response. VitD deficiencies are frequently detected in domestic animals and related to various health problems (e.g., rickets, bone deformation). However, knowledge about the status of VitD in wildlife species, such as the wild boar, is scarce. The aims of this work were to explore VitD status in wild boar populations from mid-western Spain and to elucidate the influence of daylight exposure and food supplementation in levels of VitD. Serum concentration of VitD (measured as 25-hydroxivitaminD) was assessed in 276 wild boar from 27 game estates located in mid-western Spain using a commercial ELISA kit. In 19 out of 27 estates, the staff supplied a specific VitD-enriched food (2,000 UI/ Kg) ad libitum throughout the year, while in the remaining estates (8), no food was supplied. Blood samples were extracted from hunted animals (198) between October and February of hunting seasons 2016/2017 and 2017/2018, and from live wild boar (78) that were captured, sampled and released (March-September of 2017). The per-centage of animals with VitD deficiency (<20 ng/ml), VitD insufficiency (20-30 ng/ ml) and VitD sufficiency (>30 ng/ml) was estimated, and the relationship of these levels to factors like sex, age and season was assessed using chi-square tests. Furthermore, associations between daylight exposure and supplemental food withVitD levels were explored using linear models. Of the studied wild boar population, 82.2% showed a VitD deficiency or insufficiency. VitD deficiencies were more frequent in animals sampled in winter and spring. Furthermore, levels of VitD positively correlated with daylight exposure and supplemental food intake. Ad libitum supplementation with VitD-enriched food was insufficient to prevent VitD deficiencies in wild boar from November to April, probably because food consumption is lower during this period. K E Y W O R D S daylight, supplemental food, vitamin D, wild boar | 669 RISCO et al. S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section at the end of the article. How to cite this article: Risco D, Gonçalves P, Bravo M, et al. Seasonal and dietary effects on Vitamin D deficiencies detected in wild boar from mid-western Spain. J Anim Physiol

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Seasonal variation in vitamin D status of beef cattle reared in the central United States

Cited by 23 publications

References 19 publications

Prenatal programming of later performance in dairy cattle

Prenatal programming of later performance in dairy cattle

Sun exposure in pigs increases the vitamin D nutritional quality of pork

Seasonal and dietary effects on Vitamin D deficiencies detected in wild boar from mid‐western Spain

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