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Effects of cooling and supplemental recombinant bovine somatotropin on diet digestibility, digestion kinetics and milk production of cross-bred Holstein cattle in the tropics

Published online by Cambridge University Press:  07 December 2009

W. CHANCHAI ,
S. CHANPONGSANG  and
N. CHAIYABUTR
W. CHANCHAI
Affiliation:
Department of Physiology, Chulalongkorn University, Bangkok10330, Thailand
S. CHANPONGSANG
Affiliation:
Department of Animal Husbandry, Faculty of Veterinary Science, Chulalongkorn University, Bangkok10330, Thailand
N. CHAIYABUTR*
Affiliation:
Department of Physiology, Chulalongkorn University, Bangkok10330, Thailand
*
*To whom all correspondence should be addressed. Email: [email protected]
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Summary

The aim of the current study was to determine how cooling and supplemental recombinant bovine somatotropin (rbST) affect body function with respect to digestion kinetics, digestibility and other variables relevant to milk production in cross-bred Holstein cattle. Ten primiparous cross-bred dairy cattle (0·875 Holstein Friesian×0·125 Red Shindi) were used and divided into two groups of five animals each that were housed in a normal shaded barn (NS barn; non-cooled cows) and in a shaded barn with mist-fan cooling (MF; cooled cows). The cows in each group were supplemented with rbST in early, mid and late stages of lactation with three consecutive subcutaneous injections of 500 mg rbST every 14 days. All cows were fed the same total mixed ration twice daily at approximately 1·1 of assumed ad libitum intake and water was offered ad libitum. During the experimental periods, values of ambient temperatures and temperature humidity index (THI) in the NS barn were significantly higher than in the MF barn, whereas the relative humidity in the MF barn was significantly higher than in the NS barn (P<0·01). The respiration rate and rectal temperature were significantly higher for non-cooled cows than for cooled cows during the daytime whether there was or was not rbST supplementation. Supplementation of rbST for either cooled or non-cooled cows significantly increased dry matter intake (DMI), the efficiency of feed utilization and milk yields (P<0·05). Digesta kinetics using chromic oxide as an external marker showed a high digesta passage rate constant and low mean retention time of digesta in cows either by cooling or supplementation of rbST, whereas no changes were seen for the digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF). The half-time of Cr2O3 in the whole digestive tract of cooled cows was lower than those of non-cooled cows and significantly decreased (P<0·05) during rbST supplementation in both groups in all stages of lactation. The magnitude of responses for the digesta passage rate and efficiency of feed utilization were larger in animals supplemented with rbST than in animals under MF cooling only.

The main effect of cooling and supplemental rbST was to improve digestion by an increase in the rate of passage of digesta and in turn an increase in feed intake. Digestibility was not influenced by changes in passage rate of digesta either by cooling or rbST supplementation. Milk production in response to rbST supplementation is probably enhanced with cooling. The increased milk production induced by rbST supplementation was mediated by increased efficiency of feed utilization without changes in diet digestibility.

Type
Animals
Information
The Journal of Agricultural Science , Volume 148 , Issue 2 , April 2010 , pp. 233 - 242
Copyright
Copyright © Cambridge University Press 2009

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References

REFERENCES

AOAC (1990). Official Methods of Analysis, 15th edn. Washington, DC: Association of Official Analytical Chemists.Google Scholar
Armstrong, D. V. (1994). Heat stress interaction with shade and cooling. Journal of Dairy Science 77, 2044–2050.CrossRefGoogle ScholarPubMed
Bauman, D. E. (1992). Bovine somatotropin: review of an emerging animal technology. Journal of Dairy Science 75, 3432–3451.CrossRefGoogle ScholarPubMed
Bauman, D. E. & Currie, W. B. (1980). Partitioning of nutrients during pregnancy and lactation: a review of mechanisms involving homeostasis and homeorhesis. Journal of Dairy Science 63, 1514–1529.CrossRefGoogle ScholarPubMed
Bernabucci, U., Bani, P., Ronchi, B., Lacetera, N. & Nardone, A. (1999). Influence of short- and long-term exposure to a hot environment on rumen passage rate and diet digestibility by Friesian heifers. Journal of Dairy Science 82, 967–973.CrossRefGoogle Scholar
Chaiyabutr, N., Buranakarl, C., Muangcharoen, V., Loypetjra, P. & Pichaicharnarong, A. (1987). Effect of acute heat stress on changes in the rate of liquid flow from the rumen and turnover of swamp buffalo. Journal of Agricultural Science, Cambridge 108, 549–553.CrossRefGoogle Scholar
Chaiyabutr, N., Thammacharoen, S., Komolvanich, S. & Chanpongsang, S. (2007). Effects of long-term exogenous bovine somatotropin on water metabolism and milk yield in crossbred Holstein cattle. Journal of Agricultural Science, Cambridge 145, 173–184.CrossRefGoogle Scholar
Chan, S. C., Huber, J. T., Chen, K. H., Simas, J. M. & Wu, Z. (1997). Effects of ruminally inert fat and evaporative cooling on dairy cows in hot environmental temperatures. Journal of Dairy Science 80, 1172–1178.CrossRefGoogle ScholarPubMed
Chen, K. H., Huber, J. T., Theurer, C. B., Armstrong, D. V., Wanderley, R. C., Simas, J. M., Chan, S. C. & Sullivan, J. L. (1993). Effect of protein quality and evaporative cooling on lactational performance of Holstein cows in hot weather. Journal of Dairy Science 76, 819–825.CrossRefGoogle ScholarPubMed
Christopherson, R. J. & Kennedy, P. M. (1983). Effect of the thermal environment on digestion in ruminants. Canadian Journal of Animal Science 63, 477–496.CrossRefGoogle Scholar
Collier, R. J., Beede, D. K., Thatcher, W. W., Israel, L. A. & Wilcox, C. J. (1982). Influences of environment and its modification on dairy animal health and production. Journal of Dairy Science 65, 2213–2227.CrossRefGoogle ScholarPubMed
Deinum, B., Van Es, A. J. H. & Van Soest, P. J. (1968). Climate, nitrogen and grass. II. The influence of light intensity, temperature and nitrogen on in vivo digestibility of grass and the prediction of these effects from some chemical procedures. Netherlands Journal of Agricultural Science 16, 217–233.CrossRefGoogle Scholar
Fike, J. H., Staples, C. R., Sollenberger, L. E., Moore, J. E. & Head, H. H. (2002). Southeastern pasture-based dairy systems: housing, posilac, and supplemental silage effects on cow performance. Journal of Dairy Science 85, 866–878.CrossRefGoogle ScholarPubMed
Grimaud, P. & Doreau, M. (2003). Effects of level of intake and nitrogen supplementation on digestion by cows in a tropical environment. Animal Research 52, 103–118.CrossRefGoogle Scholar
Gulay, M. S. & Hatipoglu, F. S. (2005). Use of bovine somatotropin in the management of transition dairy cows. Turkish Journal of Veterinary and Animal Science 29, 571–580.Google Scholar
Hales, J. R. S., Bell, A. W., Fawcett, A. A. & King, R. B. (1984). Redistribution of cardiac output and skin AVA activity in sheep during exercise and heat stress. Journal of Thermal Biology 9, 113–116.CrossRefGoogle Scholar
Hirayama, T., Katoh, K. & Obara, Y. (2004). Effects of heat exposure on nutrient digestibility, rumen contraction and hormone secretion in goats. Animal Science Journal 75, 237–243.CrossRefGoogle Scholar
Johnson, H. D., Li, R., Manula, W., Spencer-Johnson, K. J., Becker, B. A., Collier, R. J. & Baile, C. A. (1991). Effects of somatotropin on milk yield and physiological responses during summer farm and hot laboratory conditions. Journal of Dairy Science 74, 1250–1262.CrossRefGoogle ScholarPubMed
Kadzere, C. T., Murphy, M. R., Silanikove, N. & Maltz, E. (2002). Heat stress in lactating dairy cows: a review. Livestock Production Science 77, 59–91.CrossRefGoogle Scholar
Kimura, F. T. & Miller, V. L. (1957). Chromic oxide measurement, improved determination of chromic oxide in cow feed and feces. Journal of Agricultural and Food Chemistry 5, 216.CrossRefGoogle Scholar
Kirchgessner, M., Windisch, W., Schwab, W. & Muller, H. L. (1991). Energy metabolism of lactating dairy cows treated with prolonged-release bovine somatotropin or energy deficiency. Journal of Dairy Science 74 (Suppl. 2), 35–43.Google ScholarPubMed
Mathers, J. C., Baber, R. P. & Archibald, R. F. (1989). Intake, digestion and gastro-intestinal mean retention time in Asiatic buffaloes and Ayrshire cattle given two contrasting diets and housed at 20° and 33°C. Journal of Agricultural Science, Cambridge 113, 211–222.CrossRefGoogle Scholar
McDowell, R. E. (1972). Improvement of Livestock Production in Warm Climates. San Francisco, CA: W. H. Freeman and Co.Google Scholar
Michalet-Doreau, B. & Doreau, M. (2001). Influence of drastic underfeeding on ruminal digestion in sheep. Animal Research 50, 451–462.CrossRefGoogle Scholar
Moallem, U., Dahl, G. E., Duffey, E. K., Capuco, A. V., Wood, D. L., McLeod, K. R., Baldwin, R. L. & Erdman, R. A. (2004). Bovine somatotropin and rumen-undegradable protein effects in prepubertal dairy heifers: effects on body composition and organ and tissue weights. Journal of Dairy Science 87, 3869–3880.CrossRefGoogle ScholarPubMed
National Research Council (2001). Nutritional Requirements of Dairy Cattle. 7th edn. Washington, DC: National Academy Press.Google Scholar
Ole Miaron, J. O. & Christopherson, R. J. (1992). Effect of prolonged thermal exposure on heat production, reticular motility, rumen-fluid and particulate passage-rate constants, and apparent digestibility in steers. Canadian Journal of Animal Science 72, 809–819.CrossRefGoogle Scholar
Peel, C. J. D., Bauman, D. E., Gorewit, R. C. & Sniffen, C. J. (1981). Effect of exogenous growth hormone on lactational performance in high yielding dairy cows. Journal of Nutrition 111, 1662–1671.CrossRefGoogle ScholarPubMed
Santos, J. E. P., Huber, J. T., Theurer, C. B., Nussio, L. G., Nussio, C. B., Tarazon, M. & Lima-Filho, R. O. (1999). Performance and nutrient digestibility by dairy cows treated with bovine somatotropin and fed diets with steam-flaked sorghum or steam-rolled corn during early lactation. Journal of Dairy Science 82, 404–411.CrossRefGoogle ScholarPubMed
Sechen, S. J., Bauman, D. E., Tyrell, H. F. & Reynolds, P. J. (1989). Effect of somatotropin on kinetics of nonesterified fatty acids and partition of energy, carbon, and nitrogen in lactating dairy cows. Journal of Dairy Science 72, 59–67.CrossRefGoogle ScholarPubMed
Settivari, R. S., Spain, J. N., Ellersieck, M. R., Byatt, J. C., Collier, R. J. & Spiers, D. E. (2007). Relationship of thermal status to productivity in heat-stressed dairy cows given recombinant bovine somatotropin. Journal of Dairy Science 90, 1265–1280.CrossRefGoogle ScholarPubMed
Shibata, M. & Mukai, A. (1979). The effect of environmental temperature on the relationship between ruminal volatile fatty acids and heat production of dry cows. Japan Journal Zootechnological Science 50, 265–270.Google Scholar
Silanikove, N. (1992). Effects of water scarcity and hot environment on appetite and digestion in ruminants: a review. Livestock Production Science 30, 175–194.CrossRefGoogle Scholar
Silanikove, N. & Tadmor, A. (1989). Rumen volume saliva flow-rate, and systemic fluid homeostasis in dehydrated cattle. American Journal of Physiology 256, R809–R815.Google ScholarPubMed
Smith, T. R., Chapa, A., Willard, S., Herndon, C. Jr., Williams, R. J., Crouch, J., Riley, T. & Pogue, D. (2006). Evaporative tunnel cooling of dairy cows in the southeast. II. Impact on lactation performance. Journal of Dairy Science 89, 3915–3923.CrossRefGoogle ScholarPubMed
Tarazon-Herrera, M., Huber, J. T., Santos, J., Mena, H., Nusso, L. & Nussio, C. (1999). Effect of bovine somatotropin and evaporative cooling plus shade on lactation performance of cows during summer heat stress. Journal of Dairy Science 82, 2352–2357.CrossRefGoogle ScholarPubMed
Van Soest, P. J., Robertson, J. B. & Lewis, B. A. (1991). Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74, 3583–3597.CrossRefGoogle Scholar
West, J. W. (1994). Interactions of energy and bovine somatotropin with heat stress. Journal of Dairy Science 77, 2091–2102.CrossRefGoogle ScholarPubMed
West, J. W., Mullinix, B. G. & Sandifer, T. G. (1991). Effects of bovine somatotropin on physiologic responses of lactating Holstein and Jersey cows during hot, humid weather. Journal of Dairy Science 74, 840–851.CrossRefGoogle ScholarPubMed