Full Text Journal Articles by
Author M A Steele

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Intestinal adaptations to energy source of milk replacer in neonatal dairy calves.

A C Welboren, B Hatew, J B Renaud, L N Leal, J Martín-Tereso, M A Steele,

Most milk replacers (MR) contain more lactose compared with whole milk, which, when fed at a large meal size, could influence gut barrier function in calves. This study evaluated how replacing lactose in MR with fat (on a wt/wt basis) affects intestinal histomorphology and permeability in neonatal dairy calves. Thirty-four ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, :]

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Effects of delaying increase in milk allowance and type of gradual weaning program on performance and health of calves fed lower levels of milk.

S D Parsons, M A Steele, K E Leslie, D L Renaud, T J DeVries,

The objective of this study was to investigate the effects of delayed increase in milk allowance and type of gradual weaning program on the feed intake, health, and growth of male Holstein calves. Using a 2 × 2 factorial design, each male Holstein calf was randomly assigned to 1 of ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(10):11176-11192]

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Associations between feeding behaviors collected from an automated milk feeder and disease in group-housed dairy calves in Ontario: A cross-sectional study.

M H Conboy, C B Winder, C Medrano-Galarza, S J LeBlanc, D B Haley, J H C Costa, M A Steele, D L Renaud,

The adoption of automated milk feeders and group housing of preweaning dairy calves has become more common in Canada; however, disease detection in group-housed calves remains a challenge. The aim of this cross-sectional study was to assess whether feeding behavior data collected from a single point in time could be ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(9):10183-10193]

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Metagenomic analysis revealed the individualized shift in ileal microbiome of neonatal calves in response to delaying the first colostrum feeding.

Y Song, F Li, A J Fischer-Tlustos, A L A Neves, Z He, M A Steele, L L Guan,

The aim of this study was to explore the effect of colostrum feeding time on the ileal microbiome of neonatal calves. In this study, 22 male Holstein calves were randomly assigned to different colostrum feeding time treatments: after birth (at 45 min, n = 7); at 6 h after birth ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(8):8783-8797]

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ADSA Foundation Scholar Award: New frontiers in calf and heifer nutrition-From conception to puberty.

J K van Niekerk, A J Fischer-Tlustos, J N Wilms, K S Hare, A C Welboren, A J Lopez, T T Yohe, L R Cangiano, L N Leal, M A Steele,

Dairy calf nutrition is traditionally one of the most overlooked aspects of dairy management, despite its large effect on the efficiency and profitability of dairy operations. Unfortunately, among all animals on the dairy farm, calves suffer from the highest rates of morbidity and mortality. These challenges have catalyzed calf nutrition ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(8):8341-8362]

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The effect of neomycin inclusion in milk replacer on the health, growth, and performance of male Holstein calves during preweaning.

L N Buss, T T Yohe, L R Cangiano, D L Renaud, A J Keunen, L L Guan, M A Steele,

The prophylactic use of oral antimicrobials, such as neomycin, in milk replacer (MR) or whole milk is a common practice in calf-rearing that is thought to aid in preventing disease. Heavy reliance on antimicrobials is of concern not only because of the development of antimicrobial resistance, but also because of ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(7):8188-8201]

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Preweaning nutrient supply alters serum metabolomics profiles related to protein and energy metabolism and hepatic function in Holstein heifer calves.

L N Leal, J Doelman, B R Keppler, M A Steele, J Martín-Tereso,

Lifting the preweaning milk restriction in dairy calves has been causally associated with beneficial effects on growth and future lactation performance. However, the biological mechanisms linking early-life nutrient supply and future performance remain insufficiently understood. Thus, the objective of this study was to characterize growth and the metabolic profiles of ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(7):7711-7724]

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Hot topic: Accuracy of refractometry as an indirect method to measure failed transfer of passive immunity in dairy calves fed colostrum replacer and maternal colostrum.

A J Lopez, M A Steele, M Nagorske, R Sargent, D L Renaud,

Serum total protein (STP) refractometry is a widely used indicator of failed transfer of passive immunity (FTPI), defined as serum IgG concentrations of <10 mg/mL or STP levels <5.2 g/dL measured at 24 h of life. However, recent reports have demonstrated that refractometry could be inaccurate at estimating serum IgG ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(2):2032-2039]

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Longitudinal assessment revealed the shifts in rumen and colon mucosal-attached microbiota of dairy calves during weaning transition.

W Guo, J K van Niekerk, M Zhou, M A Steele, L L Guan,

The objectives of this study were to investigate the shifts in rumen and colon mucosa-associated microbiota in dairy calves fed a high milk replacer feeding rate before and after weaning and to determine whether such shifts are associated with tissue physiological measures. Longitudinal biopsy was performed to collect rumen and ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(5):5948-5963]

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Effects of energy source in milk replacer on glucose metabolism of neonatal dairy calves.

A C Welboren, B Hatew, O López-Campos, J P Cant, L N Leal, J Martín-Tereso, M A Steele,

Milk replacers (MR) formulated to contain more lactose than whole milk could potentially reduce insulin sensitivity in dairy calves. This study evaluated how partially replacing lactose in MR with fat on a weight/weight basis affects glucose-insulin kinetics in neonatal dairy calves fed high quantities of MR. Thirty-four Holstein bull calves ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(4):5009-5020]

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Preweaning to postweaning rumen papillae structural growth, ruminal fermentation characteristics, and acute-phase proteins in calves.

J K van Niekerk, M Middeldorp, L L Guan, M A Steele,

This study evaluated pre- to postweaning ruminal structural development, fermentation characteristics, and acute-phase protein levels in calves with a high milk replacer (MR) feeding rate prior to weaning. Six ruminally cannulated Holstein bull calves were fed MR (150 g/L) at 15% of body weight (BW) in 2 equal volumes daily. ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(3):3632-3645]

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Metabolic and performance responses to the replacement of lactose by fat in milk replacer formulations for dairy calves.

T T Yohe, H Berends, L N Leal, J N Wilms, M A Steele, J Martín-Tereso,

The recent trend in the dairy industry towards elevated planes of milk feeding of young calves requires reconsideration of calf milk replacer (CMR) formulations. The fat:lactose ratio in CMR is typically lower than that of whole milk and effects of increasing fat inclusion at the expense of lactose in CMR ... Read more >>

Animal (Animal : an international journal of animal bioscience)
[2021, 15(1):100031]

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The effect of Cryptosporidiumparvum, rotavirus, and coronavirus infection on the health and performance of male dairy calves.

D L Renaud, C Rot, J Marshall, M A Steele,

The objective of this prospective cohort study was to investigate the effect of bovine coronavirus (BCoV), bovine rotavirus (BRoV), and Cryptosporidiumparvum on dairy calf health and performance and to determine the prevalence of these pathogens. A total of 198 male dairy calves housed at a grain-fed veal facility were examined ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(2):2151-2163]

Cited: 2 times

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Differing planes of pre- and postweaning phase nutrition in Holstein heifers: II. Effects on circulating leptin, luteinizing hormone, and age at puberty.

T C Bruinjé, J P Rosadiuk, F Moslemipur, H Sauerwein, M A Steele, D J Ambrose,

The objectives were to investigate the effects of differing planes of pre- and postweaning nutrition on prepubertal serum leptin concentrations, LH profiles, and age at puberty in Holstein heifers. Thirty-six Holstein calves were randomly assigned to either a low (5 L) or high (10 L of whole milk/d) preweaning plane ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(1):1153-1163]

Cited: 2 times

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Differing planes of pre- and postweaning phase nutrition in Holstein heifers: I. Effects on feed intake, growth efficiency, and metabolic and development indicators.

J P Rosadiuk, T C Bruinjé, F Moslemipur, A J Fischer-Tlustos, D L Renaud, D J Ambrose, M A Steele,

The objectives of this study were to determine the effects of pre- and postweaning planes of nutrition on feed and metabolizable energy (ME) intake, growth, concentrations of glucose, insulin, insulin-like growth factor 1 (IGF-1), and β-hydroxybutyrate (BHB) in blood and rumen volatile fatty acids (VFA) from birth to 25 wk ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, 104(1):1136-1152]

Cited: 2 times

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Short communication: Effect of delaying the first colostrum feeding on small intestinal histomorphology and serum insulin-like growth factor-1 concentrations in neonatal male Holstein calves.

A J Fischer-Tlustos, J Pyo, Y Song, D L Renaud, L L Guan, M A Steele,

The primary objective of this study was to determine the effect of delaying the first colostrum feeding on small intestinal histomorphology and serum insulin-like growth factor-1 (IGF-1) concentrations, and the secondary objective was to characterize the ultrastructure of the small intestine of neonatal calves at 51 h of life. Twenty-seven ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(12):12109-12116]

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Technical note: Is fecal consistency scoring an accurate measure of fecal dry matter in dairy calves?

D L Renaud, L Buss, J N Wilms, M A Steele,

The objective of this cross-sectional study was to evaluate the accuracy of fecal consistency scoring as a measure of fecal dry matter (DM) in dairy calves. This study was conducted at a commercial grain-fed veal facility in southwestern Ontario. A total of 160 calves arrived at the facility in 2 ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(11):10709-10714]

Cited: 1 time

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Investigation of weaning strategy and solid feed location for dairy calves individually fed with an automated milk feeding system.

S D Parsons, M A Steele, K E Leslie, D L Renaud, T J DeVries,

The objective of this study was to investigate the effect of 2 gradual weaning programs and 2 locations of solid feed within individual calf pens on feed intake, growth, and behavior of calves fed milk by an automated milk feeder. Using a 2 × 2 factorial design, 60 female calves ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(7):6533-6556]

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Passive immunity and colostrum management practices on Ontario dairy farms and auction facilities: A cross-sectional study.

D L Renaud, M A Steele, R Genore, S M Roche, C B Winder,

Failed transfer of passive immunity (FTPI) in dairy calves has substantial health consequences, but there have been no recently published estimates of the prevalence of FTPI on Ontario dairy farms. The major objectives of this cross-sectional study were to determine the level of FTPI in dairy calves across the province ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(9):8369-8377]

Cited: 2 times

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Early supplementation of Saccharomyces cerevisiae boulardii CNCM I-1079 in newborn dairy calves increases IgA production in the intestine at 1 week of age.

C Villot, Y Chen, K Pedgerachny, F Chaucheyras-Durand, E Chevaux, A Skidmore, L L Guan, M A Steele,

The early development of immunity and microbiota in the gut of newborn calves can have life-long consequences. Gut microbiota and the intestinal barrier interplay after birth, establishing a homeostatic state whereby mucosal cells cohabit with microorganisms to develop a healthy gut. We hypothesized that postnatal codevelopment of gut immunity and ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(9):8615-8628]

Cited: 6 times

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Oligosaccharide concentrations in colostrum, transition milk, and mature milk of primi- and multiparous Holstein cows during the first week of lactation.

A J Fischer-Tlustos, K Hertogs, J K van Niekerk, M Nagorske, D M Haines, M A Steele,

The objective of this study was to characterize the oligosaccharide (OS) profile of colostrum and transition milk from primiparous (Pp, n = 10) and multiparous (Mp, n = 10) Holstein cows. The experiment was conducted on a commercial dairy farm, where cows were assigned to the study at calving. Colostrum ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(4):3683-3695]

Cited: 3 times

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Influence of protogynous sex change on recovery of fish populations within marine protected areas.

E E Easter, M S Adreani, S L Hamilton, M A Steele, S Pang, J W White,

Marine protected areas (MPAs) are increasingly implemented as a conservation tool worldwide. In many cases, they are managed adaptively: the abundance of target species is monitored, and observations are compared to some model-based expectation for the trajectory of population recovery to ensure that the MPA is achieving its goals. Most ... Read more >>

Ecol Appl (Ecological applications : a publication of the Ecological Society of America)
[2020, 30(3):e02070]

Cited: 1 time

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Effect of amount of milk replacer fed and the processing of corn in starter on growth performance, nutrient digestibility, and rumen and fecal fibrolytic bacteria of dairy calves.

J K van Niekerk, A J Fischer-Tlustos, L L Deikun, J D Quigley, T S Dennis, F X Suarez-Mena, T M Hill, R L Schlotterbeck, L L Guan, M A Steele,

The aim of this study was to evaluate effects of milk replacer (MR) feeding rate and processing of corn in calf starter (CS) on growth performance, nutrient digestibility, and rumen and fecal fibrolytic bacteria in dairy calves. Holstein male calves (n = 48, 2-3 d of age) were randomly assigned ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(3):2186-2199]

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Characterization of the colostrum and transition milk proteomes from primiparous and multiparous Holstein dairy cows.

M J Fahey, A J Fischer, M A Steele, S L Greenwood,

Colostrum plays a vital role in the nutrition, development, and immunity of a newborn calf. This study aimed to characterize the protein profile of colostrum and to identify changes in the colostrum proteome across parity during the transition to mature milk. Colostrum and transition milk samples were collected at milkings ... Read more >>

J Dairy Sci (Journal of dairy science)
[2020, 103(2):1993-2005]

Cited: 2 times

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Carryover effects of pre- and postweaning planes of nutrition on reproductive tract development and estrous cycle characteristics in Holstein heifers.

T C Bruinjé, J P Rosadiuk, F Moslemipur, J E Carrelli, M A Steele, D J Ambrose,

The objectives of this study were to investigate the carryover effects of differing pre- and postweaning planes of nutrition on prepubertal reproductive tract development and postpubertal estrous cycle characteristics in Holstein heifers. Heifer calves (n = 36) were randomly assigned to receive either a low or a high (5 or ... Read more >>

J Dairy Sci (Journal of dairy science)
[2019, 102(11):10514-10529]

Cited: 2 times

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