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Sixteen Holstein calves were used to study the effects of two feeding programs (FP) on growth, intake, rumen development and ruminal metabolism from birth to weaning. Two feeding programs based on milk replacer (MR) were tested: a once a day (OAD) MR (200 g/L) distribution vs. a standard twice a day (TAD) MR (125 g/L) distribution. All calves recei...
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... NH 3 -N content did not vary with age (P = 0.364) whereas it tended (P = 0.072) to differ between feeding pro- grams: 71.5 and 48.6 mg/L for OAD and TAD calves from day 1 to day 63, respectively ( Table 3). At slaughter, CW tended to differ (P = 0.092) between OAD and TAD calves and was 45.9 and 51.3 kg, re- spectively ( Table 4). Total stomachs weight (5.2% of CW on average) and relative weights of reticulo-rumen (62.9%), omasum (16.8%) and abomasum (20.3%) did not differ between feeding programs. ...Similar publications
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Citations
... None of the studies that compared once-versus twice-a-day milk feeding programs have shown differences in growth performances, starter intake, rumen development of calves (Ackerman et al., 1969;Galton and Brakel, 1976;Julien et al., 2015;Saldana et al., 2019), blood constituents (Stanley et al., 2002), health scores (Kehoe et al., 2007;Hulbert et al., 2011;Saldana et al., 2019) or behavior (Mushtaq et al., 2023), indicating that feeding milk once a day can be performed without apparent detrimental effects. This change in feeding strategy takes place during a crucial developmental period of the young ruminant. ...
... This work was conducted to investigate the effects of 2 feeding programs based on a milk replacer fed once (OAD) or twice (TAD) daily on ruminal metabolites and microbial diversity of Holstein calves from birth to weaning. The results of this work complement the previously published data on growth and rumen fermentation and development of dairy calves (Julien et al., 2015). ...
... This work is a companion study to that of Julien et al. (2015) analyzing samples collected from their Holstein calves. This study was conducted at the BORRET experimental farm (INP-ENSAT, Toulouse, France), in accordance with the Guidelines for animal research of the French Ministry of Agriculture for all animal housing and handling procedures (Anonymous, 1988). ...
Proper development of the rumen is an imperative chore that can be controlled to benefit both the calf and producer. The process of rumen development can be enhanced with right nutrition and management that can reduce the cost of raising a calf. Important considerations in regard to nutrition at the time of rumen growth (birth to approximately three months) can lead to faster rumen development and better growth rate of neonatal calves. Additionally, calves with well developed rumen at weaning are less susceptible to diseases and gain more body weight with lower management and labor costs. Therefore present review discusses the different nutritional factors affecting earlier rumen development.
