INFLUENCE OF THE PHYSIOLOGICAL STATE ON THE MINERAL STATUS OF CATTLE HAIR

V Voicu, N Avram, Veronica Tanasescu, Eugenia Avram, Cristina Dinu, D Cuca, Cristina Toca, Monica Parvu

Abstract


The mineral status of the cattle hair was assayed in 20 hair samples from pregnant cows and in 20 hair samples from lactating cows from the same farm. Calcium was determined with the complexonometric method; phosphorus was determined with the colorimetric method with ammonium molibdovanadate; magnesium was determined with the colorimetric method with titan yellow. The following values were determined: calcium 177.64± 19.44 mg100g in pregnant cows and 151.86±13.06 mg100g in lactating cows; phosphorus 15.92±3.84 mg100g in pregnant cows and 10.70± 4.24 mg100g in lactating cows; magnesium 47.89±6.32 mg100g in pregnant cows and 40.21±2.08 mg100g in lactating cows. The values for the three minerals were significantly lower in the hair samples from lactating cows than in the hair  samples from the pregnant cows, which shows that these minerals are used intensely during lactation, sometimes exceeding the homeostatic capacity for retention in the skeleton and, implicitly, in the hair.

 Key words: cattle, hair, physiological state


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References


Avram, N., Medrea, N., Maria Serdaru, Veronica Tănăsescu, Carmen Mehedinţu, Roman, N., 1995, Supravegherea metabolică a unităţilor de creştere a vacilor de lapte, Simpozionul „Factorii de mediu, producţia şi sănătatea taurinelor”, Tg. Mureş, 23.25 november, pp. 56-62.

Beighle, D., 1999, The Effect of Gestation and Lactation on Bone Calcium, Phosphorus and Magnezium in Dairy Cows, Journal of the South African Veterinary Association, 70, 4, pp. 142-146.

Fischer, D.D., Wilson, L.L., Leach, R.M., Scholz, R.W., 1985, Switch Hair as an Indicator of Magnezium and Copper Status of Beef Cows, Am. J. Vet. Res., 46, pp. 2235-2240.

Ghergariu, S., Baba, A., Ciupercescu, D.D., 1995, Patologia nutriţională şi metabolică a animalelor, Medicală Publishing House, Bucharest.

Krnic, J., Podzo, M., Hodzic, A., Mihaljevic, M., 2003, Metabolic Profil of Cows During Lactation and Periportal Period, Veterinaria (Sarajevo), 52, pp. 75-85.

Liesch, S., Gelfert, C.C., Stanfenbiel, R., 2006, Observation on Periparturient Paresis in Cows, Praktische Tierarztl 87, 5, pp. 380-388.

Pârvu, Gh., 1992, Supravegherea nutriţională şi metabolică a animalelor, Ceres Publishing House, Bucharest.

Stojevic, Z., Tur, S.M., Zdelover-Türk, Pirsljin, J., Galic, G., Bacic, I., 2002, Blood Minerals and Metabolites as an Indices Disturbances in Dairy Catle, Praxis Veterinaria (Zagreb), 50, 3, pp. 261-264.


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