UDC 619:616

WAYS TO INCREASE PRODUCTIVE LONGEVITY OF COWS: LOOSE HOUSING

Barashkin M. I.
Candidate of veterinary sciences, professor, dean

Ural State Agrarian University

Keywords: loose housing, cattle, industrial maintenance technology, productive longevity

Summary

Found that by increasing milk yield of Holstein crossbred cows: the leash-rated content of 3.6 %, with loose — on 7 %, but reduced the period productive use, respectively, 6.8 and 12.7 %. A reduction in the productivity by use of results in a reduction of their life milking and, consequently, reduces the efficiency of use. Despite the fact that the milk yield of cows of Holstein average per lactation was higher than that of purebred at 148–299 kg of milk (3.6–7.0 %; P < 0.05), lifetime milk yield in these groups was lower at stanchion on 599 kg of milk (3.1 %) with loose — on 1175 kg of milk (7.4 %), while the unreliable difference. The highest lifetime milk yield (34724 kg of milk) was obtained from purebred cows of black-motley breed in the group at the fastened with-holding and was up 3873 kg of milk (12.6 %) compared with the hybrid animals and consequently to 5259 kg (17.8 %) and 7348 kg (26.8 %) compared with purebred and crossbred animals with loose housing. When translated into loose housing, in purebred and crossbred cows productive period was reduced by 21.7 and 26.7 %. As a result, the lifetime milk yield in purebred animals is reduced by 19.5% in hybrid — by 23.1 %. To improve the efficiency of technology with loose content cows should recognize the influence of genetic and paratypical factors on productive longevity of farmed species use technological methods to avoid negative techno-logical pressure on the body of cows, the results of which lead to premature retirement from the herd.

References
  1. Valitov H. Z., Karamaev S. V. Ways of increasing productive longevity of cows in dairy cattle : monograph. Kinel, 2007. 93 p.
  2. Ivashkov A. I. Productive and economic features of cows with large milk yield : recommendations. M., 2003. 23 p.
  3. Kolchin A. F. Disease’s pregnant and perinatal pathology in animals. Ekaterinburg, 1999. 113p.
  4. Strekozov N. I., Levina G. Individual selection based on the type of animal and the selectivity of the bulls // Husbandry. 2001. No 1. P. 2–3.
  5. Shkuratova I. A., Aristarkhova L. N. relationship quality with clinical and hematological status of cows // Experience and problems of improving the quality of dairy products, its competitiveness in the market conditions : thesis of Regional scientific and practical conference. P. 1. Kurgan, 1997. P. 27–29.
  6. Schwark H. J. The slaughtering of cows and SMK-measures of the better use of the relevant power potentials // Animal Breeding. 1983. No 1. P. 10–12.
  7. Isaev V. A. Results of Holstein domestic livestock // Husbandry. 1994. No 1. P. 5–6.
  8. Peschuk L. Optimal timing of use of dairy cows // Dairy and Beef Cattle. 2002. No 1. P. 22–23.
  9. Ryaposova M. V., Shkuratova I. A., Rubinsky I. A. normalization of metabolism and reproductive function of breeding heifers // Veterinary Medicine. 2011. P. 11–13.
  10. Hagelschuer P. Some economic implications of securing in producing industrial scale dairy plants // Animal Breeding. 1975. No 11. P. 506–509.
  11. Andreev E. V., Dragomir A. V. Infectious rinoraheit — pustular vulvova-guinit // Acute respiratory disease in cattle. Chisinau, 1979. P. 6–83.
  12. Antimirov V. V. dairy efficiency of cows of different lines // Dairy. 2007. No 3. P. 18.
  13. Antonenko V. I. Influence of maternal breeding value of the bulls // Husbandry. 1991. No 12. P. 4–6.