Growth, physiology, and coccidiosis infestation of suckling beef calves grazing warm-season grasses and offered creep-feeding supplementation with or without monensin

Oliveira, Rhaiza A; Vendramini, J. M. B.; Vedovatto, Marcelo; Palmer, Elizabeth; Silva, Hiran M. da; Neiva, José Neuman Miranda; Miotto, Fabrícia Rocha Chaves; Moriel, Philipe

doi:10.1007/s11250-021-02789-x

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…Monensin supplementation at ≥200 mg/d did not impact prepartum BCS of beef cows ( Moseley et al, 1977 ; Turner et al, 1980 ; Linneen et al, 2015 ) and dairy cows ( Arieli et al, 2008 ; Chung et al, 2008 ; Vasquez et al, 2021 ) or improved prepartum BCS of beef cows ( Barnett et al, 1982 ) and dairy cows ( Melendez et al, 2006 ). Likewise, previous studies conducted at the same geographical location and similar bahiagrass pastures observed that monensin supplementation increased ADG of early-weaned and creep-fed beef calves ( Vendramini et al, 2018 ; Oliveira et al, 2020 , 2021 ) or did not affect overall ADG of developing replacement beef heifers ( Vendramini et al, 2015 ; Moriel et al, 2019 ). The exact reasons for the inconsistent monensin-induced effects on cattle growth performance reported in the literature and observed herein are unknown but likely explained by the different animal categories, forage type and nutritive value, supplement amount and composition, and monensin dosage evaluated.…”

Section: Discussionmentioning

confidence: 55%

“…Herbage mass, herbage allowance, and forage IVDOM and CP concentrations from days 0 to 77 did not differ among treatments, indicating that availability and nutritive value (and potentially forage DM intake) were not significantly impacted by the selected amount of supplemental protein and energy ( Moriel et al, 2020 ; Palmer et al, 2020 , 2022a ,b; Izquierdo et al, 2022 ) and monensin consumed ( Moriel et al, 2019 ; Oliveira et al, 2020 , 2021 ; Vendramini et al, 2018 ). As expected, NOSUP cows lost BCS during late gestation due to the limited herbage allowance and forage nutritive value not sufficiently meeting the increasing pregnancy-associated energy and protein requirements.…”

Section: Discussionmentioning

confidence: 97%

“…Despite the similar animal category and bahiagrass pastures, prepartum supplementation of DDG at 0.20% to 0.40% of BW (DM basis) increased prepartum plasma concentrations of IGF-1 (but not glucose and IGF-2) in multiparous beef cows ( Palmer et al, 2022a ) or increased prepartum plasma concentrations of glucose and IGF-1 (but not IGF-2) in multiparous beef cows ( Izquierdo et al, 2022 ). Likewise, supplemental monensin led to mixed results on plasma concentrations of glucose and IGF-1 in growing and mature beef cattle ( Linneen et al, 2015 ; Moriel et al 2019 ; Vendramini et al 2015 , 2018 Oliveira et al 2020 , 2021 ), primarily due to differences in animal category and precursor amount for rumen propionate production ( Sousa et al, 2022 ). More specifically, maternal supplementation of 200 mg of monensin per day during the second trimester of gestation did not alter prepartum blood concentrations of glucose (IGF-1 and -2 not reported) compared with no monensin supplementation ( Linneen et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

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Monensin supplementation during late gestation of beef cows alters maternal plasma concentrations of insulin-like growth factors 1 and 2 and enhances offspring preweaning growth

Vedovatto

Izquierdo

Palmer

et al. 2022

Translational Animal Science

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This study evaluated the effects of maternal prepartum supplementation of dried distillers grains (DDG), with or without monensin addition, on maternal performance and physiology and offspring preweaning growth. On day 0 (approximately 197 ± 4 d prepartum), 150 multiparous, Brangus crossbred beef cows were ranked by their initial body weight (BW; 524 ± 51 kg) and body condition score (BCS; 5.0 ± 0.63), and then randomly assigned into 1 of 15 bahiagrass (Paspalum notatum) pastures (10 cows and 8.1 ha/pasture). Maternal treatments were randomly assigned to pastures (5 pastures/treatment) and consisted of no prepartum supplementation of DDG (NOSUP) or supplementation of DDG at 1 kg/cow/day (dry matter basis; DM) added with 0 mg (SUP) or 200 mg/day of monensin (SUPMO) from day 0 to 77. Effects of maternal treatment and maternal treatment × day of the study were not detected (P ≥ 0.63) for any forage data. Cow BCS on days 35 and near calving (day 77) did not differ (P ≥ 0.19) between SUP and SUPMO cows but both groups had greater (P ≤ 0.001) BCS compared to NOSUP cows. Cow BCS at the start of the breeding season (day 142) and on day 168 were greatest (P < 0.0001) for SUPMO cows, least for NOSUP cows, and intermediate (P ≤ 0.02) for SUP cows. Maternal plasma concentrations of glucose did not differ (P ≥ 0.25) among treatments. Plasma concentrations of insulin-like growth factor 1 (IGF-1) on day 77 were the least for NOSUP cows (P ≤ 0.05) and did not differ (P = 0.66) between SUP and SUPMO cows, whereas plasma concentrations of IGF-2 on days 35 and 77 were greatest (P ≤ 0.05) for SUPMO cows and did not differ (P ≥ 0.60) between NOSUP and SUP cows. Birth BW of first offspring did not differ (P = 0.77) between SUP and SUPMO calves but NOSUP calves were lighter at birth (P ≤ 0.05) compared to SUP and SUPMO calves. Percentage of cows pregnant with second offspring did not differ (P = 0.72) between SUP and SUPMO cows and were the least for NOSUP cows (P ≤ 0.05). First offspring BW at weaning (day 325) was greatest (P ≤ 0.05) for SUPMO calves, least for NOSUP calves, and intermediate for SUP calves. Therefore, adding monensin into prepartum DDG supplements for Bos indicus-influenced beef cows did not increase cow prepartum BCS but led to greatest offspring preweaning growth, likely by modulating maternal plasma concentrations of IGF-1 and IGF-2 during gestation.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Monensin supplementation during late gestation of beef cows alters maternal plasma concentrations of insulin-like growth factors 1 and 2 and enhances offspring preweaning growth

Vedovatto

Izquierdo

Palmer

et al. 2022

Translational Animal Science

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Monensin supplementation downregulated the expression signature of genes involved in cholesterol synthesis in the ruminal epithelium and adipose tissue of lambs

Mirzaei-Alamouti

Moradi

Patra

et al. 2022

Trop Anim Health Prod

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Supplementing narasin or monensin to control coccidiosis in naturally infected calves

Leiva,

Cooke,

Lasmar

et al. 2024

Translational Animal Science

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This experiment compared narasin and monensin as anticoccidials for calves naturally infected with Eimeria spp. Twenty-four weaned, non-castrated male calves (Bos indicus × B. taurus cross) were assigned to this experiment (d -8 to 42). All calves were infected by Eimeria spp. according to oocyst count per gram (OPG) from fecal samples collected on d -8 and -7 (average 1,059 ± 101 oocysts/g). Calves were housed in individual pens, received corn silage, mineral mix and water for ad libitum consumption, in addition to a grain-based supplement at 200 g/head daily. Fecal samples were collected on d -2 and -1 for OPG, and results averaged as initial OPG value. Calves were blocked according to initial OPG into 8 blocks of 3 calves each, ranked within each block according to BW recorded on d -1, and assigned to receive narasin (NAR; 0.8 mg/kg of BW), monensin (MON; 1 mg/kg of BW), or no ionophore (CON; negative control). Ionophores were added to the grain-based supplement, and offered from d 0 to 42 of the experiment. Calf BW was recorded on d 7, 14, 21, 28, 35 and 42. Fecal samples were collected on d 6 and 7, 13 and 14, 20 and 21, 26 and 27, 34 and 35, 41 and 42 for OPG analysis, and results from samples collected in consecutive days were averaged. Aliquoted fecal samples were also pooled across calves from the same treatment and collection days, and used to determine prevalence of individual species of Eimeria. No treatment effects were detected (P ≥ 0.51) for calf BW or growth rate. A treatment × day interaction was detected (P < 0.01) for OPG, as NAR and MON calves had less (P < 0.01) OPG compared with CON calves beginning on d 7. The OPG was also less (P ≤ 0.03) in MON compared with NAR calves on d 7, 14, and 28, but did not differ (P ≥ 0.48) on d 21, 35 and 42. The anticoccidial efficacy of NAR and MON did not differ (P ≥ 0.16) when calculated across all Eimeria spp., or according to prevalence of E. bovis and E. alabamensins. A treatment × day interaction was detected (P = 0.04) for anticoccidial efficacy to E. alabamensis, which was greater (P < 0.01) in MON calves on d 7 and 14 and did not differ (P ≥ 0.40) afterwards. Collectively, both ionophores were similarly effective in controlling coccidiosis upon completion of the 42-d study, although the anticoccidial effects of monensin were noted earlier in the experiment. Nonetheless, these results corroborate narasin as an efficient anticoccidial ionophore for naturally infected calves.

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Growth, physiology, and coccidiosis infestation of suckling beef calves grazing warm-season grasses and offered creep-feeding supplementation with or without monensin

Cited by 3 publications

References 27 publications

Monensin supplementation during late gestation of beef cows alters maternal plasma concentrations of insulin-like growth factors 1 and 2 and enhances offspring preweaning growth

Monensin supplementation during late gestation of beef cows alters maternal plasma concentrations of insulin-like growth factors 1 and 2 and enhances offspring preweaning growth

Monensin supplementation downregulated the expression signature of genes involved in cholesterol synthesis in the ruminal epithelium and adipose tissue of lambs

Supplementing narasin or monensin to control coccidiosis in naturally infected calves

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