A Statistical Appraisal of the Results of the Metabolic Profile Tests on 191 Herds in the B.V.A./A.D.A.S Joint Exercise in Animal Health and Productivity

Payne, J. M.; Rowlands, G.J.; Manston, R.; Dew, Sally M.; Parker, W. H.

doi:10.1016/s0007-1935(17)35988-2

Cited by 56 publications

(12 citation statements)

References 5 publications

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“…Moreover, elevation of sodium level during summer might be due to dehydration. This finding contradicted with Payne et al (1974), where in sodium concentration was lower in summer than winter season. Sivaraman et al (2002) also reported that sodium content was higher during lactation period.…”

Section: Resultscontrasting

confidence: 56%

Determination of mineral constituents of crossbred animals in different season

Sharma¹,

Roy²,

Dubey³

et al. 2017

AJDFR

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Mineral nutrient are used in countless metabolic pathways in dairy cow's body, and even some mineral deficiency can result in cow's suboptimal performance. To study the effect of season mineral constituents of cattle, 20 cows were taken, out of which, 10 animals in lactation stage (peak and mid lactation) and 10 in dry period. The study was carried out in and around Rajnandgaon district of Chhattisgarh state. A total 15 ml of blood was collected from each animals analyzed for mineral constituents during different seasons. The data was statistically analyzed to draw the conclusion the average value of calcium, potassium, sodium, iron was high in summer. While, the average magnesium and copper values were higher in rainy and winter season respectively. Average serum iron was lower in dry period. Seasonal variation of serum concentration was non significant. Lactation stage had no significant effect on mineral constituents. Sodium, iron,copper were slightly lower in dry period. The present investigation revealed that mineral constituents of animals varied with season and indicates further scope of manage mental interventions in feeding of animal according to different season.

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Section: Resultscontrasting

confidence: 56%

Determination of mineral constituents of crossbred animals in different season

Sharma¹,

Roy²,

Dubey³

et al. 2017

AJDFR

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“…OLTNER and BERGLUND (1983) found that the effect of season and year was significant for each blood constituent assayed. PAYNE et al ( ), ROWLANDS et al (1974 and SHAFPER et al (1981) found significant differences for various blood components between years and seasons. JASIOROWSKI et al (1960) reported that cows kept on pasture in the autumn had 70% higher blood urea than cows kept on pasture in the spring.…”

Section: Discussionmentioning

confidence: 97%

The Concentration of Blood Glucose, Urea, Calcium and Magnesium in Milking Dairy Cows

Eldon

Thorsteinsson

Olafsson

1988

Journal of Veterinary Medicine Series A

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Blood samples from 362 milking Icelandic dairy cows were sampled over a 3 year period. The cows came from 9 herds in 2 areas in Iceland, the north (area 1) and the south (area 2). The cows were kept in tie-stalls and fed hay, silage and concentrates 2 4 times a day during winter but grazed on pasture during summer and received concentrates twice daily.The total of 963 samples were collected and analysed for glucose, urea, calcium, magnesium and ketone bodies.The effects of year, season, area, herd and age were studied. The overall means and standard deviations for the blood constituents were in agreement with the findings of other authors. The effects of year were significant for all the blood constituents. The effect of season was also significant for all constituents except Mg. The effect of area was significant for urea and Mg but not for glucose and Ca. The differences between herds were significant only for Mg in area 1, but for glucose urea and Mg in area 2.Glucose, Ca and Mg were negatively correlated with age, although the correlation coefficients were small, r = -0.18, -0.23 and -0.24, respectively. Cows with clinical ketosis (and blood ketone concentrations > lOmmol/l) had significantly lower glucose and Ca values than healthy cows (P < 0.001 and 0.01, respectively).The glucose values were significantly correlated with urea (r = -0.09, P < 0.001), Ca (r = 0.12, P < 0.001) and Mg (r = 0.09, P < 0.01). Urea was significantly correlated with Mg (r = 0.09, P < 0.01) and Ca was correlated with Mg (r = 0.10, P < 0.001). ZusammenfassungBlutkonzentrationen von Glucose, Harnstoff, Calcium und Magnesium bei laktierenden Milchkiihen Bei 362 laktierenden Islindischen Milchkiihen wurden 3 Jahre lang Blutproben entnommen. Die Kuhe gehorten zu 9 Herden, die in 2 Gebieten von Island, namlich im Norden (Gebiet 1) und Suden (Gebiet 2) gehalten wurden. Die Kuhe waren im Winter im Anbindestall untergebracht und erhielten 2 4 m a l taglich Heu, Silage und Kraftfutter. WArend des Sommers befanden sie sich auf der Weide. Insgesamt wurden 963 Blutproben entnommen und auf Glucose, Harnstoff, Calcium, Magnesium und Ketonkorper untersucht. ' Es wurde der Einflufl des Jahres, der Saison, des Gebiets, der Herde und des Alters untersucht. Die Gesamtmittelwerte, Standardabweichungen der Blutwerte stimmten mit Befunden anderer Autoren iiberein. Der Einflufl des Jahres war bei allen Blutwerten signifikant. Das gleiche gilt, mit Ausnahme des Mg, fiir die Saison. Der Einflufl des Gebiets war fur Harnstoff und Mg signifikant, nicht jedoch fiir Glucose und Ca. Die Unterschiede zwischen den Herden waren im Gebiet 1 nur fur Mg signifikant, im Gebiet 2 jedoch fur Glucose, Harnstoff und Mg. Glucose, Ca und Mg waren rnit dem Alter negativ korreliert, wenn auch die Korrelationskoeffizienten gering waren (r = -0,18, -0,23 bzw. -0,24). Kiihe mit Ketose (und Blut-Ketonkorper-Konzentrationen > 10 mmol/l) wiesen signifikant niedrigere Glucose-und Ca-Werte auf als gesunde Kiihe (p < 0,001 bzw. 0,Ol).Die Glucosewerte waren rnit den Hamstoff-(r = -0,09,...

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“…Sykes (1976) found blood albumin levels to be a good indicator of the protein 'reserves' of sheep, and Payne et al (1974) found a positive correlation between blood albumin concentration and milk solids-not-fat concentration in a study of 191 dairy herds. If the level of dietary protein supply is sufficient to support foetal growth and other peripartum protein requirements such as mammary development, it is generally considered that there is unlikely to be any net benefit in the provision of extra DUP to the dry cow.…”

Section: Discussionmentioning

confidence: 99%

Effect of increasing digestible undegraded protein supply to dairy cows in late gestation on the yield and composition of milk during the subsequent lactation

Moorby¹,

Dewhurst²,

Marsden³

1996

Anim. Sci.

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Effects of feeding a protein supplement to dairy cows during the dry period on performance during the following lactation were investigated in two experiments. Holstein-Friesian cows were paired towards the end of lactation, and, after drying off, one of each pair received a typical dry cow management regime of ad libitum grass silage (experiment 1), or a mix of grass silage and distillers' grains or pressed beet pulp (experiment 2). The other cows were offered restricted access to the same basal diet, together with ad libitum access to barley straw and 0?5 kg/day high protein maize gluten meal. During the following lactation, animals from both groups were treated without reference to dry period treatment, and were offered equal access to the same lactation diet. Data were analysed by analysis of variance of experiment means and by parallel curve analysis using sample means. In experiment 1, milk yields were similar (27?2 v. 27?9 (s.e.d. 2?12) kg/day for control and supplemented animals respectively) but milk protein yields, and hence concentrations, were significantly higher (P < 0?001) from supplemented animals (28?9 v. 31?8 (s.e.d. 0?58) g/kg). In experiment 2, milk yields were significantly higher (P < 0?001) from supplemented animals (mean 33?3 v. 35?4 (s.e.d. 1?66) kg/day; however, milk protein yields were also significantly increased (P < 0?001) and the change in milk protein concentration was small. No difference in dry-matter intake was recorded in a subset of animals during early lactation in experiment 2. It is hypothesized that the maternal labile body protein pool was maintained or replenished during the dry period by the provision of the protein supplement, and that this had a significant effect on subsequent lactation performance.publishersversionPeer reviewe

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A Statistical Appraisal of the Results of the Metabolic Profile Tests on 191 Herds in the B.V.A./A.D.A.S Joint Exercise in Animal Health and Productivity

Cited by 56 publications

References 5 publications

Determination of mineral constituents of crossbred animals in different season

Determination of mineral constituents of crossbred animals in different season

The Concentration of Blood Glucose, Urea, Calcium and Magnesium in Milking Dairy Cows

Effect of increasing digestible undegraded protein supply to dairy cows in late gestation on the yield and composition of milk during the subsequent lactation

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