Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny
The objective of this study was to determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes in glucose and insulin concentrations. At 129 d of gestation, 10 mature multiparous Angus cows were stratified by body weight (BW) and body condition score (BCS) and allotted to either low protein level (LP, 6% crude protein [CP]) or high protein level (HP, 12% CP) groups. After calving, cows were managed together on improved pastures, which provided forage in excess of requirements until weaning. Male calves were maintained as a group after weaning on native range until 23 mo of age when individual steers were placed in single pens and fed a finishing diet for 84 d. The 12th rib fat thickness and longissimus muscle area were measured during finishing phase by ultrasound. Twenty days before the end of the finishing phase, steers were subjected to an intravenous glucose tolerance test. Steers were harvested and carcass characteristics collected. Cows' BW and BCS were similar at the initiation of treatment. During treatment HP dams gained 21 kg, whereas LP dams lost 7 kg (P = 0.04). Protein nutrition during late gestation did not influence calf birth weight, BW at weaning, adjusted 205 d BW, or average daily gain during lactation (P > 0.10). Longissimus muscle area measure by ultrasound was greater (P = 0.02) in HP steers at the beginning and end of finishing phase. Fat thickness of the 12th rib was not different (P > 0.10) between treatments. Glucose concentration after intravenous administration decreased (P = 0.002) in LP compared with HP steers. Peak of serum insulin concentration was greater (P = 0.04) and serum insulin concentration tended to decrease (P = 0.08) more rapidly in LP compared with HP steers after glucose infusion. At harvest, hot carcass weight was similar between treatments, but dressing percentage was increased (P = 0.05) in HP compared with LP steers. These data demonstrate that a lower protein nutrition level of dams during late gestation affect carcass characteristics and alter glucose regulation enhancing insulin secretion in steer progeny.
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Elsevier
2019
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Subjects: | Ganado Bovino, Buey, Gestación, Dietas Restrictas en Proteínas, Músculos, Glucosa, Malnutrición, Cattle, Bullocks, Pregnancy, Protein Restricted Diets, Muscles, Glucose, Malnutrition, Novillo, |
Online Access: | https://www.sciencedirect.com/science/article/pii/S0739724019300116 http://hdl.handle.net/20.500.12123/5183 https://doi.org/10.1016/j.domaniend.2019.01.009 |
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oai:localhost:20.500.12123-51832019-05-22T12:15:06Z Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Pavan, Enrique Quintans, Graciela I. Long, Nathan M. Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo The objective of this study was to determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes in glucose and insulin concentrations. At 129 d of gestation, 10 mature multiparous Angus cows were stratified by body weight (BW) and body condition score (BCS) and allotted to either low protein level (LP, 6% crude protein [CP]) or high protein level (HP, 12% CP) groups. After calving, cows were managed together on improved pastures, which provided forage in excess of requirements until weaning. Male calves were maintained as a group after weaning on native range until 23 mo of age when individual steers were placed in single pens and fed a finishing diet for 84 d. The 12th rib fat thickness and longissimus muscle area were measured during finishing phase by ultrasound. Twenty days before the end of the finishing phase, steers were subjected to an intravenous glucose tolerance test. Steers were harvested and carcass characteristics collected. Cows' BW and BCS were similar at the initiation of treatment. During treatment HP dams gained 21 kg, whereas LP dams lost 7 kg (P = 0.04). Protein nutrition during late gestation did not influence calf birth weight, BW at weaning, adjusted 205 d BW, or average daily gain during lactation (P > 0.10). Longissimus muscle area measure by ultrasound was greater (P = 0.02) in HP steers at the beginning and end of finishing phase. Fat thickness of the 12th rib was not different (P > 0.10) between treatments. Glucose concentration after intravenous administration decreased (P = 0.002) in LP compared with HP steers. Peak of serum insulin concentration was greater (P = 0.04) and serum insulin concentration tended to decrease (P = 0.08) more rapidly in LP compared with HP steers after glucose infusion. At harvest, hot carcass weight was similar between treatments, but dressing percentage was increased (P = 0.05) in HP compared with LP steers. These data demonstrate that a lower protein nutrition level of dams during late gestation affect carcass characteristics and alter glucose regulation enhancing insulin secretion in steer progeny. EEA Cuenca del Salado Fil: Maresca, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina Fil: Lopez Valiente, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina Fil: Rodriguez, Alejandro Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina Fil: Pavan, Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Quintans, Graciela I. Instituto Nacional de Investigación Agropecuaria (INIA); Uruguay Fil: Long, Nathan M. Clemson University. Department of Animal and Veterinary Sciences; Estados Unidos 2019-05-22T12:13:31Z 2019-05-22T12:13:31Z 2019 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0739724019300116 http://hdl.handle.net/20.500.12123/5183 0739-7240 1879-0054 https://doi.org/10.1016/j.domaniend.2019.01.009 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Domestic Animal Endocrinology 69 : 13-18 (October 2019) |
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Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo |
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Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Pavan, Enrique Quintans, Graciela I. Long, Nathan M. Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
description |
The objective of this study was to determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes in glucose and insulin concentrations. At 129 d of gestation, 10 mature multiparous Angus cows were stratified by body weight (BW) and body condition score (BCS) and allotted to either low protein level (LP, 6% crude protein [CP]) or high protein level (HP, 12% CP) groups. After calving, cows were managed together on improved pastures, which provided forage in excess of requirements until weaning. Male calves were maintained as a group after weaning on native range until 23 mo of age when individual steers were placed in single pens and fed a finishing diet for 84 d. The 12th rib fat thickness and longissimus muscle area were measured during finishing phase by ultrasound. Twenty days before the end of the finishing phase, steers were subjected to an intravenous glucose tolerance test. Steers were harvested and carcass characteristics collected. Cows' BW and BCS were similar at the initiation of treatment. During treatment HP dams gained 21 kg, whereas LP dams lost 7 kg (P = 0.04). Protein nutrition during late gestation did not influence calf birth weight, BW at weaning, adjusted 205 d BW, or average daily gain during lactation (P > 0.10). Longissimus muscle area measure by ultrasound was greater (P = 0.02) in HP steers at the beginning and end of finishing phase. Fat thickness of the 12th rib was not different (P > 0.10) between treatments. Glucose concentration after intravenous administration decreased (P = 0.002) in LP compared with HP steers. Peak of serum insulin concentration was greater (P = 0.04) and serum insulin concentration tended to decrease (P = 0.08) more rapidly in LP compared with HP steers after glucose infusion. At harvest, hot carcass weight was similar between treatments, but dressing percentage was increased (P = 0.05) in HP compared with LP steers. These data demonstrate that a lower protein nutrition level of dams during late gestation affect carcass characteristics and alter glucose regulation enhancing insulin secretion in steer progeny. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Ganado Bovino Buey Gestación Dietas Restrictas en Proteínas Músculos Glucosa Malnutrición Cattle Bullocks Pregnancy Protein Restricted Diets Muscles Glucose Malnutrition Novillo |
author |
Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Pavan, Enrique Quintans, Graciela I. Long, Nathan M. |
author_facet |
Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Pavan, Enrique Quintans, Graciela I. Long, Nathan M. |
author_sort |
Maresca, Sebastian |
title |
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
title_short |
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
title_full |
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
title_fullStr |
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
title_full_unstemmed |
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
title_sort |
late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny |
publisher |
Elsevier |
publishDate |
2019 |
url |
https://www.sciencedirect.com/science/article/pii/S0739724019300116 http://hdl.handle.net/20.500.12123/5183 https://doi.org/10.1016/j.domaniend.2019.01.009 |
work_keys_str_mv |
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_version_ |
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