Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination
ABSTRACT: Botanical extracts (BE; Apex, Adisseo North America, Atlanta, GA) are known to enhance DMI and gut health, whereas direct-fed microbials (DFM), such as a Lactobacillus acidophilus fermentation product (EX: Excel; Pacer Technology Inc., Murtaugh, ID), have demonstrated improved gut health a...
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Elsevier
2024-12-01
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| Series: | Journal of Dairy Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0022030224011275 |
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| author | Lydia K. Olagunju David P. Casper Michael Officer Keith Klanderman Uchenna Y. Anele |
| author_facet | Lydia K. Olagunju David P. Casper Michael Officer Keith Klanderman Uchenna Y. Anele |
| author_sort | Lydia K. Olagunju |
| collection | DOAJ |
| description | ABSTRACT: Botanical extracts (BE; Apex, Adisseo North America, Atlanta, GA) are known to enhance DMI and gut health, whereas direct-fed microbials (DFM), such as a Lactobacillus acidophilus fermentation product (EX: Excel; Pacer Technology Inc., Murtaugh, ID), have demonstrated improved gut health and growth performance when fed to growing neonatal Holstein calves. The hypothesis was this combination may be synergistic to neonatal calf growth performance and intestinal health. Eighty Holstein bull calves aged 2 to 5 d were blocked by BW and randomly assigned to 1 of 4 treatments arranged using a randomized complete block design. Treatments were as follows: (1) control, no additives; (2) BE added at 496 mg/kg to the calf starter (CS); (3) EX added to the CS at 2.50 g/kg with EX added to the milk replacer (MR) at 5 g/d; and (4) BE+EX: BE and EX added to CS at same rates and added EX to MR. Calves received 0.283 kg of MR in 1.9 L fed 2×/d for the first 14 d, then increased to 0.42 kg in 2.84 L fed 2×/d through d 35, followed by 0.42 kg of MR in 2.84 L fed 1×/d through d 42, followed by weaning. The CS was a 25% CP DM basis mini-pellet and the MR was a 22:20 (CP:fat) fed 2×/d at 0630 and 1800 h along with free choice water. Weaning occurred after d 49 of the 70-d experiment. Calves fed CS EX alone demonstrated greater BW gain compared with calves fed BE+EX, with calves fed control and BE being intermediate and similar (63.9, 63.5, 65.0, and 59.7 kg for control, BE, EX, and BE+EX, respectively). Total DMI (MR+CS) was lower for calves fed BE+EX compared with calves fed the remaining treatments (116.5, 114.2, 116.4, and 104.9 kg). The feeding of a BE in combination with EX (DFM) to neonatal calves reduced BW during wk 8, 9, and 10 and reduced 0 to 70 d ADG (874.7, 870.0, 889.7, and 817.6 g/d) compared with calves fed the remaining treatments. Calves fed BE+EX demonstrated the lowest calf starter intake during wk 4 through 10 compared with calves fed the other treatments. The study average CS intake for calves fed control and EX was greater compared with calves fed BE+EX with calves fed BE being similar and intermediate. Calves fed EX and BE+EX demonstrated greater total days of fecal scour score = 1 (5.4, 5.7, 8.0, and 8.3 d) compared with calves fed control and BE. Gains in frame measurements of hip height, hip width, withers height, and body length were similar whereas calves fed BE+EX demonstrated lower heart girth gains (19.2, 18.3, 19.7, and 17.6 cm) during the milk feeding phase (0–7 wk) compared with calves fed control and EX, with calves fed BE being similar and intermediate. It is not known why this study demonstrated an antagonism between BE and EX in growth performance and feed intake but further research is needed to identify the mechanism of action. |
| format | Article |
| id | doaj-art-742d9bdc6598486e86abd6ee29a038f5 |
| institution | Kabale University |
| issn | 0022-0302 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dairy Science |
| spelling | doaj-art-742d9bdc6598486e86abd6ee29a038f52024-11-29T06:22:30ZengElsevierJournal of Dairy Science0022-03022024-12-01107121083810850Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combinationLydia K. Olagunju0David P. Casper1Michael Officer2Keith Klanderman3Uchenna Y. Anele4Department of Animal Science, North Carolina Agricultural and Technical State University, Greensboro, NC 27411Department of Animal Science, North Carolina Agricultural and Technical State University, Greensboro, NC 27411; Casper's Calf Ranch LLC, Freeport, IL 61032; Corresponding authorPacer Technology Inc., Murtaugh, ID, 83344Adisseo US Inc., Alpharetta, GA 30233Department of Animal Science, North Carolina Agricultural and Technical State University, Greensboro, NC 27411ABSTRACT: Botanical extracts (BE; Apex, Adisseo North America, Atlanta, GA) are known to enhance DMI and gut health, whereas direct-fed microbials (DFM), such as a Lactobacillus acidophilus fermentation product (EX: Excel; Pacer Technology Inc., Murtaugh, ID), have demonstrated improved gut health and growth performance when fed to growing neonatal Holstein calves. The hypothesis was this combination may be synergistic to neonatal calf growth performance and intestinal health. Eighty Holstein bull calves aged 2 to 5 d were blocked by BW and randomly assigned to 1 of 4 treatments arranged using a randomized complete block design. Treatments were as follows: (1) control, no additives; (2) BE added at 496 mg/kg to the calf starter (CS); (3) EX added to the CS at 2.50 g/kg with EX added to the milk replacer (MR) at 5 g/d; and (4) BE+EX: BE and EX added to CS at same rates and added EX to MR. Calves received 0.283 kg of MR in 1.9 L fed 2×/d for the first 14 d, then increased to 0.42 kg in 2.84 L fed 2×/d through d 35, followed by 0.42 kg of MR in 2.84 L fed 1×/d through d 42, followed by weaning. The CS was a 25% CP DM basis mini-pellet and the MR was a 22:20 (CP:fat) fed 2×/d at 0630 and 1800 h along with free choice water. Weaning occurred after d 49 of the 70-d experiment. Calves fed CS EX alone demonstrated greater BW gain compared with calves fed BE+EX, with calves fed control and BE being intermediate and similar (63.9, 63.5, 65.0, and 59.7 kg for control, BE, EX, and BE+EX, respectively). Total DMI (MR+CS) was lower for calves fed BE+EX compared with calves fed the remaining treatments (116.5, 114.2, 116.4, and 104.9 kg). The feeding of a BE in combination with EX (DFM) to neonatal calves reduced BW during wk 8, 9, and 10 and reduced 0 to 70 d ADG (874.7, 870.0, 889.7, and 817.6 g/d) compared with calves fed the remaining treatments. Calves fed BE+EX demonstrated the lowest calf starter intake during wk 4 through 10 compared with calves fed the other treatments. The study average CS intake for calves fed control and EX was greater compared with calves fed BE+EX with calves fed BE being similar and intermediate. Calves fed EX and BE+EX demonstrated greater total days of fecal scour score = 1 (5.4, 5.7, 8.0, and 8.3 d) compared with calves fed control and BE. Gains in frame measurements of hip height, hip width, withers height, and body length were similar whereas calves fed BE+EX demonstrated lower heart girth gains (19.2, 18.3, 19.7, and 17.6 cm) during the milk feeding phase (0–7 wk) compared with calves fed control and EX, with calves fed BE being similar and intermediate. It is not known why this study demonstrated an antagonism between BE and EX in growth performance and feed intake but further research is needed to identify the mechanism of action.http://www.sciencedirect.com/science/article/pii/S0022030224011275botanical extractcalvesdirect-fed microbialgrowth performance |
| spellingShingle | Lydia K. Olagunju David P. Casper Michael Officer Keith Klanderman Uchenna Y. Anele Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination Journal of Dairy Science botanical extract calves direct-fed microbial growth performance |
| title | Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination |
| title_full | Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination |
| title_fullStr | Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination |
| title_full_unstemmed | Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination |
| title_short | Male Holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct-fed microbial alone or in combination |
| title_sort | male holstein calves fed a milk replacer and pelleted calf starter containing a botanical extract or a direct fed microbial alone or in combination |
| topic | botanical extract calves direct-fed microbial growth performance |
| url | http://www.sciencedirect.com/science/article/pii/S0022030224011275 |
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