Some Blood Minerals and Hormones in Cows Fed Variable Mineral Levels and Ionic Balance

Romo, G.A.; Kellems, R. O.; Powell, K.; Wallentine, M. V.

doi:10.3168/jds.s0022-0302(91)78492-0

Cited by 16 publications

(15 citation statements)

References 17 publications

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“…Indeed, serum Ca and P concentration is also inversely related to parity number (Shappell et al, 1987;Romo et al, 1991) justifying the hypothesis of a lower utilization in older cows. Van de Braak and Van't Klooster (1987) argued that osteoplastic activities are less intense in older than in younger cows, which could explain a decreased responsiveness for parathyroid hormone-mediated Ca resorption and intestinal absorption in older parity cows (Romo et al, 1991). Moreover, the greater amount of milk produced by older cows during lactation could explain the lower mineral content because of the dilution.…”

Section: Discussionmentioning

confidence: 85%

“…The decrease in milk Ca and P content within increasing parity is probably due to the reduced Genetics of milk minerals and acidity utilization of these minerals in the mammary gland (Kume and Tanabe, 1993). Indeed, serum Ca and P concentration is also inversely related to parity number (Shappell et al, 1987;Romo et al, 1991) justifying the hypothesis of a lower utilization in older cows. Van de Braak and Van't Klooster (1987) argued that osteoplastic activities are less intense in older than in younger cows, which could explain a decreased responsiveness for parathyroid hormone-mediated Ca resorption and intestinal absorption in older parity cows (Romo et al, 1991).…”

Section: Discussionmentioning

confidence: 99%

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Genetic parameters for milk mineral content and acidity predicted by mid-infrared spectroscopy in Holstein–Friesian cows

Toffanin

Penasa

McParland

et al. 2015

Animal

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The aim of the present study was to estimate genetic parameters for calcium (Ca), phosphorus (P) and titratable acidity (TA) in bovine milk predicted by mid-IR spectroscopy (MIRS). Data consisted of 2458 Italian Holstein − Friesian cows sampled once in 220 farms. Information per sample on protein and fat percentage, pH and somatic cell count, as well as test-day milk yield, was also available. (Co)variance components were estimated using univariate and bivariate animal linear mixed models. Fixed effects considered in the analyses were herd of sampling, parity, lactation stage and a two-way interaction between parity and lactation stage; an additive genetic and residual term were included in the models as random effects. Estimates of heritability for Ca, P and TA were 0.10, 0.12 and 0.26, respectively. Positive moderate to strong phenotypic correlations (0.33 to 0.82) existed between Ca, P and TA, whereas phenotypic weak to moderate correlations (0.00 to 0.45) existed between these traits with both milk quality and yield. Moderate to strong genetic correlations (0.28 to 0.92) existed between Ca, P and TA, and between these predicted traits with both fat and protein percentage (0.35 to 0.91). The existence of heritable genetic variation for Ca, P and TA, coupled with the potential to predict these components for routine cow milk testing, imply that genetic gain in these traits is indeed possible.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Genetic parameters for milk mineral content and acidity predicted by mid-infrared spectroscopy in Holstein–Friesian cows

Toffanin

Penasa

McParland

et al. 2015

Animal

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“…Therefore, they are dependent on the paracellular absorption pathway to maintain the serum Ca at a steady concentration. Romo et al (1991) and Kume et al (2003) also reported that high parity in cows had a negative effect on serum Ca concentration, and serum Ca decline due to parturition in dairy cows increased with the parity. It should be considered from these reports that the action of DFA III on Ca uptake via paracellular pathway will have a relatively greater effect in multiparous cows when compared to primiparous cows.…”

Section: Discussionmentioning

confidence: 91%

Changes of Serum Calcium Concentration, Frequency of Ruminal Contraction and Feed Intake Soon after Parturition of Dairy Cows Fed Difructose Anhydride III

Wynn

Teramura

Satô

et al. 2014

Asian Australas. J. Anim. Sci

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Requirements to control the large decrease in serum calcium (Ca) due to parturition and to increase the feed intake soon after parturition have been well accepted in dairy cows. This study was aimed to investigate the feed intake affected by serum Ca concentration with difructose anhydride (DFA) III supplement in dairy cows soon after parturition. Fourteen transition Holstein cows were divided into DFA and control (CONT) groups within 1 to 5 parity variations in each group. Measurement schedule for an individual cow was from 14 d before parturition to 7 d following parturition. The cows in DFA group were supplied 0.2 kg/head/d of DFA III feed containing 40 g of pure DFA III while the cows in CONT group received no DFA III. Other feeding procedures were the same for all cows in both groups. At parturition (d 0), serum Ca concentration sharply declined in both groups (p<0.05). Time interval for recovery from decreased serum Ca to its normal range (>9.0 mg/dL) tended to be faster in DFA group (12 h) than in the CONT group (48 h), but the differences were not significant. Active ruminal contraction was observed in DFA group at following parturition of d 1 (p<0.05), d 3 (p<0.05), and d 5 (p<0.01). Dry matter (DM) intake did not differ between the groups. However, positive correlations were observed between serum Ca concentration and ruminal contraction (p<0.001), and between ruminal contraction and DM intake (p<0.001) during following parturition. According to multiple regression analysis (R2 = 0.824, p<0.001), the DM intake was positively affected by serum Ca concentration and ruminal contraction. These results suggest that feed intake soon after parturition in dairy cows can be increased by improvement of serum Ca concentration and active ruminal contraction, but DFA III supplementation in this study did not improve the lower serum Ca concentration due to parturition.

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“…An increase in blood calcium (Ca) ion concentrations at calving have been reported at DCAB levels of -8 mEq/kg dry matter (DM) (Phillippo Tauriainen, S. et al Effect of anionic salts on dry cows III et al 1994), -35 mEq/kg DM (Abu Damir et al 1994) or -75 mEq/kg DM (Oetzel et al 1988). However, a decrease in DCAB did not change total Ca concentration in plasma when DCAB was -8 mEq/kg DM (Phillippo et al 1994, Romo et al 1991. Although a change in total Ca concentration in plasma was noticed with -30 mEq/ kg DM in DCAB, a lack of the prophylactic effect on the occurrence of milk fever has been documented (Tucker et al 1992).…”

Section: Introductionmentioning

confidence: 98%

Effect of anionic salts in concentrate mixture on some blood and urine minerals, acid-base balance and feed intake of dry pregnant cows on grass silage based feeding with high calcium intake

Tauriainen¹,

Sankari²,

Syrjälä-Qvist³

1998

AFSci

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The objective was to study the effects of anionic salts in a concentrate mixture on some blood and urine minerals, acid-base balance and intake of Ayrshire cows fed a grass silage based diet. Eighteen nonlactating, pregnant Ayrshire cows were divided randomly into two groups according to their expected calving date. Dietary cation-anion balance (DCAB), calculated as milliequivalents [(Na+ + K+) - (Cl- + S2-)] of the two diets was +410 mEq/kg of dietary dry matter (DM) in the high DCAB group and +81 mEq/kg of the dietary DM in the low DCAB group, respectively. The DCAB was formulated using NH4Cl, (NH4)2SO4 and MgCl2 as anionic salts. Cows received grass silage (5.2 kg DM), hay (0.8 kg DM) and a concentrate mixture (1.7 kg DM) until calving. Both diets were supplemented with 100 g CaCO3 to achieve a high Ca intake (82 g Ca/d). Blood and urine samples were collected 4, 3, 2 and 1 week before the expected calving date, at calving, the day after calving and 1 week following calving. Current data indicated that it may be difficult to formulate a diet with a negative DCAB, if the K content of grass silage is over 30 g/kg DM. As a result, no increase in blood Ca2+ and a relatively high urinary pH were observed. Furthermore, it may advantageous to increase Mg intakes above current Finnish recommendations when dietary Ca concentrations are high, since 28% of experimental cows experienced hypomagnaesemia at parturition.;

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Some Blood Minerals and Hormones in Cows Fed Variable Mineral Levels and Ionic Balance

Cited by 16 publications

References 17 publications

Genetic parameters for milk mineral content and acidity predicted by mid-infrared spectroscopy in Holstein–Friesian cows

Genetic parameters for milk mineral content and acidity predicted by mid-infrared spectroscopy in Holstein–Friesian cows

Changes of Serum Calcium Concentration, Frequency of Ruminal Contraction and Feed Intake Soon after Parturition of Dairy Cows Fed Difructose Anhydride III

Effect of anionic salts in concentrate mixture on some blood and urine minerals, acid-base balance and feed intake of dry pregnant cows on grass silage based feeding with high calcium intake

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