Effects of Weaning Age on Growth and Blood Parameters of Replacing Holstein Calves Fed on a Restricted Step Up and Down Milk Feeding Program
محورهای موضوعی : Camelص. سیف زاده 1 , م. رمضانی 2 , ج. سیفدعوتی 3 , ه. عبدی-بنمار 4 , و. رزمآذر 5
1 - دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی
2 - Department of Animal Science, Faculty of Agricultural Science, University of Mohaghegh Ardabili, Ardabil, Iran
3 - Department of Animal Science, Faculty of Agricultural Science, University of Mohaghegh Ardabili, Ardabil, Iran
4 - Department of Animal Science, Faculty of Agricultural Science, University of Mohaghegh Ardabili, Ardabil, Iran
5 - Department of Animal Science, Faculty of Animal Science, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran
کلید واژه: growth performance, blood parameters, calves, weaning programs,
چکیده مقاله :
The objective of this study was to investigate the effects of different early weaning programs on growth performance and blood parameters of dairy calves. To meet this objective, thirty Holstein calves with initial body weight of 36 ± 5 kg were randomly assigned at birth to one of the three weaning programs. Experimental groups were: 1) starter diet and whole milk from birth to 6 weeks and weaning at 42 d old (6WW)), 2) starter diet and whole milk from birth to 9 weeks and weaning at 63 d old (9WW) and 3) starter diet and whole milk from birth to 12 weeks and weaning at 84 d old (12WW). Starter diet and water were available ad libitum throughout the experiment. Daily starter intake and growth performance of calves were measured until d 90 of life for all groups. Body weight (BW) and starter intake in all measured periods (on d 28, 56 and 84) did not differ between experimental groups. Calves weaned at 42 d (6WW) had higher average daily gain (ADG) in second month than 9WWand 12WWgroups (P<0.05). Calves reared in 6WW group had significantly greater total ADG values than calves weaned on 63 and 84 d (P<0.05). Total feed conversation ratio affected by experimental treatments and was lowest in 6WWcalves (P<0.05). Body length, heart girth and withers height of calves did not differ among treatments at 28, 56 and 84. Plasma cholesterol concentration of calves weaned in 6WWgroup was lower (P<0.05) than calves weaned in 9WW and 12WW. Under the conditions of this study, the results suggest that calves weaned at 42 d were more efficient at utilizing dry matter intake for body weight (BW) gain and growth.
Abdullah M., Iqbal Z.M., Saadullah M., Haq A., Javed K., Jabbar M.A. and Tauseef A. (2013). Comparative performance of calves fed milk and/or milk replacer supplemented with calf starter up to weaning age in Nili-Ravi buffaloes. Buffalo Bull. 32, 874-877
Anderson K.L., Nagaraja T.G. and Morrill J.L. (1987). Ruminal metabolic development in calves weaned conventionally or early. J. Dairy Sci. 70, 1000-1005.
AOAC. (1997). Official Methods of Analysis. Vol. I. 16th Ed. Association of Official Analytical Chemists, Arlington, VA, USA.
Appleby M., Weary D. and Chua B. (2001). Performance and feeding behaviour of calves on ad libitum milk from artificial teats. Appl. Anim. Behav. Sci. 74, 191-201.
Appleman R.D. and Owen F.G. (1974). Breeding, housing, and feeding management. J. Dairy Sci. 58, 447-464.
Baldwin R.L., McLeod V.I., Klotz K.R. and Heitmann R.N. (2004). Rumen development, intestinal growth and hepatic metabolism in the pre- and post weaning ruminant. J. Dairy Sci. 87, 55-65.
Bjorklund E.A., Heins B.J. and Chester-Jones H. (2013). Whole-milk feeding duration, calf growth, and profitability of group-fed calves in an organic production system. J. Dairy Sci. 96, 1-8.
Chai J., Diao Q., Wang H., Tu Y., Tao X. and Zhang N. (2017). Effects of weaning age on growth, nutrient digestibility and metabolism, and serum parameters in Hu lambs. Anim. Nutr. 1, 344-348.
Cheema A.T., Bhatti S.A., Akbar G., Wynn P.C., Muhammad G., Warriach H.M., McGill D. and Forthcoming. (2016). Effect of weaning age and milk feeding level on pre- and post-weaning growth performance of Sahiwal calves. Anim. Prod. Sci. 58(2), 314-321.
De Passill A.M., Borderas T.F. and Rushen J. (2011). Weaning age of calves fed a high milk allowance by automated feeders, effects on feed, water and energy intake, behavioral signs of hunger, and weight gains. J. Dairy Sci. 94, 1401-1408.
Eckert E., Brown H.E., Leslie K.E., DeVries T.J. and Steele M.A. (2015). Weaning age affects growth, feed intake, gastrointestinal development, and behavior in Holstein calves fed an elevated plane of nutrition during the preweaning stage. J. Dairy Sci. 98, 1-12.
Greenwood R., Morrill J., Titgemeyer E. and Kennely G. (1997). A new method of measuring diet abrasion and its effect on the development of the fore stomach. J. Dairy Sci. 80, 2534-2541.
Hopkins B.A., Hunt E. and Hunt L.D. (1993). Effect of milk feeding regimen and weaning age on growth and performance of Holstein calves. J. Dairy Sci. 76, 274-284.
Iranian Council of Animal Care. (1995). Guide to the Care and Use of Experimental Animals. Isfahan University of Technology, Isfahan, Iran.
Jasper J. and Weary D.M. (2002). Effects of ad libitum milk intake on dairy calves. J. Dairy Sci. 85, 3054-3058.
Kehoe S.I., Dechow C.D. and Heinrichs A.J. (2006). Effects of weaning age and milk feeding frequency on dairy calf growth, health and rumen parameters. Livest. Sci. 110, 267-272.
Kertz A.F., Prewtt L.R. and Eerett J.R. (1979). An early weaning calf program: Summarization and review. J. Dairy Sci. 62, 1835-1843.
Khan M.A., Lee H.J., Lee W.S., Kim H.S., Kim S.B., Ki K.S., Ha J.K., Lee H.G. and Choi Y.J. (2007). Pre- and post-weaning performance of Holstein female calves fed milk through step down and conventional methods. J. Dairy Sci. 90, 876-885.
Khan M.A., Weary D.M. and Von Keyserlingk M.A.G. (2011). Hay intake improves performance and rumen development of calves fed higher quantities of milk. J. Dairy Sci. 94, 3547-3553.
Khan M.A., Bach A., Weary D.M. and Keyserlingk M.A.G. (2016). Invited review: Transitioning from milk to solid feed in dairy heifers. J. Dairy Sci. 91, 885-902.
Martin W.G., Ramsey H.A., Matrone G. and Wise G.H. (1959). Responses of young calves to a diet containing salts of volatile fatty acids. J. Dairy Sci. 42, 1377-1386.
Paez Lama S., Grilli D. and Egea V. (2014). Rumen development and blood metabolites of Criollo kids under two different rearing systems. Livest. Sci. 167, 171-177.
Quigley J.D. and Caldwell L.A. (1991). Changes in blood glucose, nonesterified fatty acids, and ketones in response to weaning and feeding intake in young calves. J. Dairy Sci. 74, 250-257.
Rashid M.A., Pasha T.N., Jabbar M.A., Ijaz A., Rehman H. and Yousaf M.S. (2013). Influence of weaning regimen on intake, growth characteristics and plasma blood metabolites in male buffalo calves. Anim. Sci. 7, 1472-1478.
SAS Institute. (2003). SAS®/STAT Software, Release 9.1. SAS Institute, Inc., Cary, NC. USA.
Sweeney B.C., Rushen J., Weary D.M. and de Passille A.M. (2010). Duration of weaning, starter intake, and weight gain of dairy calves fed large amounts of milk. J. Dairy Sci. 93, 148-152.
Tao H., Guo F., Tu Y., Si B.W., Xing Y., Huang D.J. and Diao Q.Y. (2018). Effect of weaning age on growth performance, feed efficiency, nutrient digestibility and blood-biochemical parameters in Drought master crossbred beef calves. Asian-Australian J. Anim. Sci. 6, 864-872.
Van Soest P.J., Robertson J.B. and Lewis B.A. (1991). Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74, 3583-3597.
Winter K.A. (1985). Comparative performance and digestibility in dairy calves weaned at three, five, and seven weeks of age. Canadan J. Anim. Sci. 65, 445-450.
