Effect of weaning age and milk feeding level on pre- and post-weaning growth performance of Sahiwal calves

Ahsan Tasawar Cheema, Shaukat Ali Bhatti, Ghulam Akbar, Peter C. Wynn, Ghulam Muhammad, Hassan Mahmood Warriach, David McGill

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The Sahiwal cow is a tropical dairy breed native to Pakistan. The objective of the present study was to evaluate pre- and post-weaning growth of Sahiwal calves weaned either at 8 or 12 weeks and offered milk at either 10% or 15% of bodyweight (BW) from birth to weaning. Colostrum fed Sahiwal calves (n = 48) were randomly allocated to four treatments of 12 calves each. Calves were offered milk either at 10% (low-milk) or 15% (high-milk) of BW in two weaning programs (early or late). Early weaned calves were offered milk until Day 35, adjusted weekly for liveweight and then reduced by one-third in each subsequent week until weaned at Day 56 (early weaned). Late-weaned calves were offered milk until Day 63 and were weaned at Day 84 (late-weaned) by reducing milk offered by one-third in each subsequent week. Calves were offered a concentrate ration (21% crude protein and 2.93 metabolisable energy, Mcal/kg) from Day 28 to Day 112. Final BW at 16 weeks was highest (77.6 ± 1.8 kg; P < 0.01) in high milk-fed late-weaned calves and lowest in low milk-fed early weaned calves (60.2 ± 1.8 kg). High-milk early weaned and low milk late-weaned calves had comparable final BW (70.7 ± 1.8 vs 72.0 ± 1.8 kg), although lower than that of high-milk late-weaned calves, but still at an acceptable lower feeding cost to gain per kg liveweight (US$ 3.2 vs 2.5). Thus, offering milk to Sahiwal calves at 15% of BW and weaning at 8 weeks saves milk and labour required for additional days to feed these calves.

Original languageEnglish
Pages (from-to)314-321
Number of pages8
JournalAnimal Production Science
Volume58
Issue number2
Early online dateOct 2016
DOIs
Publication statusPublished - 01 Jan 2018

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Sahiwal
feeding level
Weaning
growth performance
weaning
Milk
calves
milk
Growth
body weight
dairy breeds
Colostrum
Pakistan
colostrum
metabolizable energy

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Cheema, Ahsan Tasawar ; Bhatti, Shaukat Ali ; Akbar, Ghulam ; Wynn, Peter C. ; Muhammad, Ghulam ; Warriach, Hassan Mahmood ; McGill, David. / Effect of weaning age and milk feeding level on pre- and post-weaning growth performance of Sahiwal calves. In: Animal Production Science. 2018 ; Vol. 58, No. 2. pp. 314-321.
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abstract = "The Sahiwal cow is a tropical dairy breed native to Pakistan. The objective of the present study was to evaluate pre- and post-weaning growth of Sahiwal calves weaned either at 8 or 12 weeks and offered milk at either 10{\%} or 15{\%} of bodyweight (BW) from birth to weaning. Colostrum fed Sahiwal calves (n = 48) were randomly allocated to four treatments of 12 calves each. Calves were offered milk either at 10{\%} (low-milk) or 15{\%} (high-milk) of BW in two weaning programs (early or late). Early weaned calves were offered milk until Day 35, adjusted weekly for liveweight and then reduced by one-third in each subsequent week until weaned at Day 56 (early weaned). Late-weaned calves were offered milk until Day 63 and were weaned at Day 84 (late-weaned) by reducing milk offered by one-third in each subsequent week. Calves were offered a concentrate ration (21{\%} crude protein and 2.93 metabolisable energy, Mcal/kg) from Day 28 to Day 112. Final BW at 16 weeks was highest (77.6 ± 1.8 kg; P < 0.01) in high milk-fed late-weaned calves and lowest in low milk-fed early weaned calves (60.2 ± 1.8 kg). High-milk early weaned and low milk late-weaned calves had comparable final BW (70.7 ± 1.8 vs 72.0 ± 1.8 kg), although lower than that of high-milk late-weaned calves, but still at an acceptable lower feeding cost to gain per kg liveweight (US$ 3.2 vs 2.5). Thus, offering milk to Sahiwal calves at 15{\%} of BW and weaning at 8 weeks saves milk and labour required for additional days to feed these calves.",
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Effect of weaning age and milk feeding level on pre- and post-weaning growth performance of Sahiwal calves. / Cheema, Ahsan Tasawar; Bhatti, Shaukat Ali; Akbar, Ghulam; Wynn, Peter C.; Muhammad, Ghulam; Warriach, Hassan Mahmood; McGill, David.

In: Animal Production Science, Vol. 58, No. 2, 01.01.2018, p. 314-321.

Research output: Contribution to journalArticle

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