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Zhang C, Jiang X, Wu S, Zhang J, Wang Y, Li Z, Yao J. Dietary fat and carbohydrate-balancing the lactation performance and methane emissions in the dairy cow industry: A meta-analysis. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:347-357. [PMID: 38800741 PMCID: PMC11127094 DOI: 10.1016/j.aninu.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/11/2024] [Accepted: 02/20/2024] [Indexed: 05/29/2024]
Abstract
For the agroecosystems of the dairy cow industry, dietary carbohydrate (starch, neutral detergent fiber [NDF]) and fat could directly affect rumen methane emissions and host energy utilization. However, the relationships among diet, lactation performance, and methane emissions need to be further determined to assist dairy farms to adjust diet formulations and feeding strategies for environmental and production management. A meta-analysis was conducted in the current study to explore quantitative patterns of dietary fat and carbohydrate at different levels in balancing lactation performance and environment sustainability of dairy cows, and to establish a methane emission prediction model using the artificial neural network (ANN) model. The results showed that the regression relationship between dietary fat, carbohydrate and methane emissions could be shown by the following models: methane = 106.78 + (14.86 × DMI), R2 = 0.80; methane = 443.17 - (46.41 × starch/NDF), R2 = 0.76; and methane = 388.91 + (31.40 × fat) - (5.42 × fat2), R2 = 0.80. The regression relationships between dietary fat, carbohydrate and lactation performance could be shown by the following models: milk fat yield = 1.08 + (0.43 × starch/NDF) - [0.34 × (starch/NDF)2], R2 = 0.79; milk protein yield = 0.68 + (0.15 × fat) - (0.016 × fat2), R2 = 0.82. In the structural equation model, we found that when formulating dietary carbohydrates and fats, it was necessary to balance the relationship between methane emissions and lactation performance. Specifically, dietary starch/NDF was lower than 0.63 (extremum point) and dietary fat was between 2.89% and 4.69% (extremum point), it could ensure that the aim of methane emission reduction (methane emissions decrease with increasing dietary starch/NDF and fat) was achieved without losing lactation performance of dairy cows (lactation performance increase with increasing dietary starch/NDF and fat). Finally, we established the ANN model to predict methane emissions (training set: R2 = 0.62; validation set: R2 = 0.61).
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Affiliation(s)
| | | | - Shengru Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jun Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yue Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zongjun Li
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Junhu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
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Razzaghi A, Vakili AR, Khorrami B, Ghaffari MH, Rico DE. Effect of dietary supplementation or cessation of magnesium-based alkalizers on milk fat output in dairy cows under milk fat depression conditions. J Dairy Sci 2022; 105:2275-2287. [PMID: 34998549 DOI: 10.3168/jds.2021-20457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 10/07/2021] [Indexed: 11/19/2022]
Abstract
We aimed to evaluate the effects of dietary supplementation with magnesium oxide and calcium-magnesium dolomite on milk fat synthesis and milk fatty acid profile or persistency in milk fat synthesis after their cessation in dairy cows under milk fat depression conditions. Twenty-four multiparous dairy cows in early lactation (mean ± standard deviation; 112 ± 14 d in milk) were used in a randomized complete block design. Milk fat depression was induced in all cows for 10 d by feeding a diet containing 35.2% starch, 28.7% neutral detergent fiber, and 4.8% total fatty acid (dry matter). The experiment was conducted in 2 periods. During the Mg-supplementation period (d 1-20), cows were randomly assigned to (1) the milk fat depression diet used during the induction phase (control; n = 8), (2) the control diet plus 0.4% magnesium oxide (MG; n = 8), or (3) the control diet plus 0.8% calcium-magnesium dolomite (CMC; n = 8). Compared with the control group, feeding the magnesium-supplemented diets increased milk fat concentration and yield by 12% within 4 d. During the 20-d Mg-supplementation period, both the MG and CMC diets increased milk fat concentration and yield, as well as 3.5% fat-corrected milk and energy-corrected milk yield, without affecting dry matter intake, milk yield, and milk protein and lactose concentrations. In the Mg-cessation period (d 21-30), all cows received the control diet, which resulted in a greater milk fat concentration and yield in the cows that had already received the MG and CMC diets in the Mg-supplementation period. Whereas, milk fat concentration and yield remained high after discontinuation of the magnesium-containing alkalizer until d 27. The difference in milk fat synthesis was associated with lower trans-10 C18:1 (-22%) and higher trans-11 C18:1 (+12.5%) concentrations in milk during the Mg-supplementation period. Furthermore, it was evident that within 2 d of supplementation, the trans-10:trans-11 ratio was lower in MG and CMC cows compared with cows receiving the control. This suggested that the effect of magnesium-based alkalizers on milk fat synthesis was mediated via a shift in ruminal biohydrogenation of cis-9,cis-12 C18:2 in the rumen. In conclusion, abrupt addition of magnesium oxide and calcium-magnesium dolomite increased milk fat synthesis, which persisted for 7 d after cessation of magnesium-based alkalizers. A similar ability to recover milk fat synthesis and normal fatty acid biohydrogenation pathways was observed for magnesium oxide and calcium-magnesium dolomite.
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Affiliation(s)
- A Razzaghi
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad 91775-1163, Iran
| | - A R Vakili
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad 91775-1163, Iran.
| | - B Khorrami
- Department of Animal and Poultry Sciences, College of Aburaihan, University of Tehran, Tehran 3391653755, Iran
| | - M H Ghaffari
- Institute of Animal Science, Physiology and Hygiene Unit, University of Bonn, 53115 Bonn, Germany
| | - D E Rico
- Centre de Recherche en Sciences Animales de Deschambault (CRSAD), Deschambault, QC, Canada, G0A 1S0
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Alves SP, Vahmani P, Mapiye C, McAllister TA, Bessa RJB, Dugan MER. Trans-10 18:1 in ruminant meats: A review. Lipids 2021; 56:539-562. [PMID: 34608647 DOI: 10.1002/lipd.12324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 08/21/2021] [Accepted: 09/13/2021] [Indexed: 11/10/2022]
Abstract
Trans (t) fatty acids (TFA) from partially hydrogenated vegetable oils (i.e., industrial trans) have been phased out of foods in many countries due to their promotion of cardiovascular disease. This leaves ruminant-derived foods as the main source of TFA. Unlike industrial TFA where catalytic hydrogenation yields a broad distribution of isomers, ruminant TFA are enzymatically derived and can result in enrichment of specific isomers. Comparisons between industrial and ruminant TFA have often exonerated ruminant TFA due to their lack or at times positive effects on health. At extremes, however, ruminant-sourced foods can have either high levels of t10- or t11-18:1, and when considering enriched sources, t10-18:1 has properties similar to industrial TFA, whereas t11-18:1 can be converted to an isomer of conjugated linoleic acid (cis(c)9,t11-conjugated linoleic acid), both of which have potential positive health effects. Increased t10-18:1 in meat-producing ruminants has not been associated with negative effects on live animal production or meat quality. As such, reducing t10-18:1 has not been of immediate concern to ruminant meat producers, as there have been no economic consequences for its enrichment; nevertheless at high levels, it can compromise the nutritional quality of beef and lamb. In anticipation that regulations regarding TFA may focus more on t10-18:1 in beef and lamb, the present review will cover its production, analysis, biological effects, strategies for manipulation, and regulatory policy.
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Affiliation(s)
- Susana P Alves
- CIISA, Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Payam Vahmani
- Department of Animal Science, University of California-Davis, Davis, California, USA
| | - Cletos Mapiye
- Department of Animal Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tim A McAllister
- Agricuture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Alberta, Canada
| | - Rui J B Bessa
- CIISA, Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Michael E R Dugan
- Agriculture and Agri-Food Canada, Lacombe Research and Development Centre, Lacombe, Alberta, Canada
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Johnston D, Theodoridou K, Stewart S, Ferris C. The effect of post-harvest treatment of field beans on dairy cow performance and nutrient utilisation. Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Malekkhahi M, Naserian AA, Rahimi A, Bazgir A, Vyas D, Razzaghi A. Effects of ground, steam-flaked, and super-conditioned corn grain on production performance and total-tract digestibility in dairy cows. J Dairy Sci 2021; 104:6756-6767. [PMID: 33773788 DOI: 10.3168/jds.2020-19202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/24/2021] [Indexed: 11/19/2022]
Abstract
This study aimed to evaluate the effects of feeding ground, steam-flaked, or super-conditioned corn on production performance, rumen fermentation, nutrient digestibility, and milk fatty acid (FA) profile of lactating dairy cows. Twenty-four lactating Holstein cows (130 ± 12 d in milk) in a completely randomized block design experiment were assigned to 1 of 3 treatments that contained 31% of one of the following corn types: (1) ground corn; (2) steam-flaked corn; and (3) super-conditioned corn. Actual milk yield was greater in the super-conditioned corn diet than in the steam-flaked and ground corn diets. Dry matter intake, 3.5% fat-corrected milk and energy-corrected milk remained unaffected by treatments; however, milk fat concentration decreased in the super-conditioned corn diet compared with the ground and steam-flaked corn diets. The molar proportion of ruminal acetate decreased in the super-conditioned corn diet compared with the ground and steam-flaked corn diets, whereas the molar proportion of propionate spiked in the super-conditioned corn diet. Ruminal pH dropped in cows fed super-conditioned corn compared with the other 2 diets. A similar pattern was observed for ruminal NH3-N and acetate-to-propionate ratio. Total-tract starch digestibility increased the most in the super-conditioned corn diet followed by the steam-flaked and ground corn diets (96.8, 95.1, and 92.5%, respectively). The neutral detergent fiber digestibility declined in cows fed the super-conditioned corn diet as opposed to other diets (~3.9%). The concentrations of 16:0 and mixed-FA in milk fat dropped in the super-conditioned corn-based diet compared with the ground corn diet. Milk trans-10 18:1 FA increased, whereas trans-11 18:1 FA decreased in cows fed the super-conditioned diet. We concluded that super-conditioned corn has the potential to increase milk yield and starch digestibility in lactating dairy cows; however, reduced milk fat output caused by altering ruminal pH and ruminal FA biohydrogenation pathways may not be desirable in certain markets. Future research is warranted to investigate how super-conditioned corn affects feed efficiency.
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Affiliation(s)
- M Malekkhahi
- Innovation Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
| | - A A Naserian
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad 9177948978, Iran
| | - A Rahimi
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad 9177948978, Iran
| | - A Bazgir
- Asiab Machine Iranian Industrial Manufacturing Group, Tehran 1386114311, Iran
| | - D Vyas
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601
| | - A Razzaghi
- Innovation Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
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6
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Influence of Days in Milk and Parity on Milk and Blood Fatty Acid Concentrations, Blood Metabolites and Hormones in Early Lactation Holstein Cows. Animals (Basel) 2020; 10:ani10112081. [PMID: 33182583 PMCID: PMC7696570 DOI: 10.3390/ani10112081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/04/2020] [Accepted: 11/09/2020] [Indexed: 11/16/2022] Open
Abstract
The objective of this paper is to study the influence of physiological factors that affect the energy balance, such as lactation stage and parity, on milk yield and composition, milk and blood fatty acid concentrations, blood metabolites and hormones in healthy early lactation cows. Thirty-two Holstein dairy cows from five Belgian commercial farms were followed. The grass silage-based diets fed to cows fell within normal composition ranges typically offered to dairy cows on commercial dairy farms in the region. Milk and blood were sampled at each official milk recording and used for the determination of milk fat and protein, milk and blood fatty acids, blood metabolites and hormones concentrations. The considered period was 7 to 150 days in milk. As lactation progressed, concentrations of milk 18:0 and 18:1c9, as well as blood non-esterified fatty acids and β-hydroxybutyrate, decreased, and those of milk C4-C14, blood cholesterol, triglycerides, insulin and IGF-I increased, agreeing with the extensive mobilization of body reserves in early lactation. Lower concentrations of milk C4-C14 and 16:0 and concomitant higher concentrations of milk 18:0 and 18:1c9 suggest a larger body reserve mobilization in first parity cows compared with greater than or equal to second parity cows. This study confirms that early lactation stage along with parity significantly influence milk fatty acids, such as 18:1, and blood metabolites and hormones, such as NEFA and insulin.
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Castillo-Umaña M, Balocchi O, Pulido R, Sepúlveda-Varas P, Pacheco D, Muetzel S, Berthiaume R, Keim JP. Milk production responses and rumen fermentation of dairy cows supplemented with summer brassicas. Animal 2020; 14:1684-1692. [PMID: 32131931 DOI: 10.1017/s175173112000021x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Forage brassicas, such as summer turnip (ST; Brassica rapa) and forage rape (FR; Brassica napus), are used as supplementary crops during summer. However, studies with lactating dairy cows fed these forages are limited and report inconsistent productive responses. The aim of this study was to determine dry matter intake, rumen fermentation and milk production responses of dairy cows in mid-lactation supplemented with and without summer ('ST' or 'FR') brassicas. Twelve multiparous lactating dairy cows were randomly allocated to three dietary treatments in a replicated 3 × 3 Latin square design balanced for residual effects over three 21-day periods. The control diet consisted of 16.2 kg DM of grass silage, 2.25 kg DM of commercial concentrate and 2.25 kg DM solvent-extracted soybean meal. For the other two dietary treatments, 25% of the amounts of silage and concentrates were replaced with FR or ST. The inclusion of forage brassicas had no effects on milk production (24.2 kg cow/day average) and composition (average milk fat and protein 43.2 and 33.6 g/l, respectively). Dry matter intake was 0.98 kg and 1.12 kg lower for cows supplemented with FR and ST, respectively, resulting in a greater feed conversion efficiency (1.35 kg milk/kg DM for ST and FR v. 1.27 kg milk/kg DM for the control diet). Intraruminal pH was lower for cows supplemented with ST compared to the control diet; however, it did not decrease below pH 5.8 at any time of the day. After feeding, the concentrations of total short-chain fatty acids (SCFAs) in rumen contents increased with ST supplementation compared to the control diet. Inclusion of FR in the diet increased the molar proportion of acetate (68.5 mmol/100 mmol) in total SCFA at the expense of propionate, measured 6 h after feeding of the forage. The molar proportion of butyric acid was greater with ST and FR supplementation (13.1 and 12 mmol/100 mmol, respectively) than in control cows. The estimated microbial nitrogen (N) flow was 89.1 g/day greater when supplementing FR compared to the control diet. Based on the haematological measures, the inclusion of summer brassica forages did not affect the health status of the animals. These results indicate that mid-lactation dairy cows fed brassicas are able to maintain production despite the reduced intake, probably due to improved rumen fermentation and therefore nutrient utilization.
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Affiliation(s)
- M Castillo-Umaña
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - O Balocchi
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - R Pulido
- Faculty of Veterinary Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - P Sepúlveda-Varas
- Faculty of Veterinary Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - D Pacheco
- Animal Science Group, Grasslands Research Centre, Private Bag 11008, 4442, Palmerston North, New Zealand
| | - S Muetzel
- Animal Science Group, Grasslands Research Centre, Private Bag 11008, 4442, Palmerston North, New Zealand
| | - R Berthiaume
- Valacta, Dairy Centre of Expertise, 555 Blvd des Anciens-Combattants, QCH9X 3R4, St Anne de Bellevue, Canada
| | - J P Keim
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
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Albornoz RI, Harvatine KJ, Allen MS. Diet starch concentration and starch fermentability affect energy intake and energy balance of cows in the early postpartum period. J Dairy Sci 2019; 102:5161-5171. [PMID: 30981484 DOI: 10.3168/jds.2018-15634] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 02/17/2019] [Indexed: 11/19/2022]
Abstract
Our objective was to evaluate the effects of diet starch concentration and fermentability on energy intake and energy balance during the early postpartum (PP) period. Fifty-two multiparous Holstein cows were used in a randomized block design experiment with a 2 × 2 factorial arrangement of treatments. Treatment rations were formulated to 22% or 28% starch concentration (LS and HS, respectively) with dry ground corn (DGC) or high moisture corn (HMC) as the primary starch source. Rations were formulated for 22% forage neutral detergent fiber (NDF) and 17% crude protein and fed from 1 to 23 d PP. Starch concentration was adjusted by altering concentrations of corn grain and soyhulls. Dry matter intake and milk yield were measured daily, and milk components, milk composition, body condition score (BCS), body weight (BW), and back fat thickness (BFT) were measured weekly. Feeds and refusals as well as fecal samples were collected, and digestibility was determined weekly. High moisture corn (HMC) decreased dry matter and net energy (NEL) intakes compared with DGC more when included in an HS diet (3.9 kg/d and 3.2 Mcal/d) than in an LS diet (0.9 kg/d and 0.6 Mcal/d). The HMC treatment decreased NDF digestibility 3.7 percentage units compared with DGC when included in the HS diet but had little effect when included in an LS diet. Compared with DGC, HMC increased weekly BW and BFT loss when included in an HS diet (-34.7 vs. -8.4 kg/wk and -0.12 vs. -0.10 cm/wk) and decreased weekly BW loss but increased weekly BFT loss when included in an LS diet (-18.9 vs. -21.4 kg/wk and -0.11 vs. -0.02 cm/wk). Weekly BCS loss increased for HMC compared with DGC (-0.33 vs. -0.23 unit/wk). High moisture corn also decreased milk NEL output compared with DGC (28.2 vs. 31 Mcal/d), but had little effect on energy balance, which was improved by HS compared with LS (-14.7 vs. -16.8 Mcal/d). Over time, concentrations of milk de novo fatty acids (<16 carbons) increased and concentration of milk preformed fatty acids (>16 carbons) decreased for all treatments, but yields of both sources as well as yield of mixed fatty acids (C16:0 plus C16:1 cis-9 and iso-C16:0) decreased over time with increased SF. Feeding HMC decreased energy intake and milk energy output, but it had little effect on energy balance during the early PP period.
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Affiliation(s)
- R I Albornoz
- Department of Animal Science, Michigan State University, East Lansing 48824
| | - K J Harvatine
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - M S Allen
- Department of Animal Science, Michigan State University, East Lansing 48824.
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Koch LE, Jenkins TC, Bridges WC, Koch BM, Lascano GJ. Changes in fermentation and animal performance during recovery from classical diet-induced milk fat depression using corn with differing rates of starch degradability. J Dairy Sci 2019; 102:5079-5093. [PMID: 30981483 DOI: 10.3168/jds.2018-15953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 02/21/2019] [Indexed: 02/02/2023]
Abstract
Diet-induced milk fat depression (MFD) is a multifactorial disorder that can be triggered by a variety of conditions. Feeding high amounts of starch and unsaturated fatty acids has been shown to reduce milk fat yield and composition, as well as alter ruminal biohydrogenation patterns. However, little is known about how starch degradability in the rumen influences recovery from diet-induced MFD and if production of milk fat-inhibiting isomers will persist following an episode of MFD. The objective of this study was to evaluate production performance and ruminal fermentation in cows recovering from MFD when corn with a low or high starch degradability is fed. Six ruminally fistulated Holstein cows were used in a crossover design with 2 periods. During each period, MFD was induced for 10 d by feeding a diet with low fiber, high starch, and high unsaturated fatty acid. The polyunsaturated fatty acid concentration of the diet during the induction phase was modified primarily through inclusion of soybean oil. Following induction, cows were switched to either a high degradable starch recovery diet (HDS) or a low degradable starch recovery diet (LDS) for 18 d. The 7-h starch degradability was 66.5% for LDS and 87.8% for HDS. Milk was collected every 3 d for component and fatty acid analysis. On d 0, 4, 7, 10, 16, 22, and 28 of each period, ruminal pH and rumen fluid were collected every 2 h. Milk fat yield and composition was reduced during MFD induction and progressively increased by day in both HDS and LDS during recovery. Dry matter intake was similar among treatments and increased steadily over time during recovery. Preformed fatty acids were greater for HDS-fed animals, and de novo fatty acid in milk fat was greater for LDS-fed animals. Milk trans-10 C18:1 tended to be greater for HDS, and trans-10,cis-12 conjugated linoleic acid was significantly greater for HDS. cis-9,trans-11 conjugated linoleic acid was not affected by starch degradability during recovery. Total volatile fatty acids, butyrate, and valerate tended to differ or differed with recovery treatment, but ruminal pH and ammonia concentration were unaffected. The HDS diet responded similarly to the LDS diet during recovery with regard to milk fat percentage, but milk and fat yield tended to consistently be lower in HDS. When considering approaches to ameliorate diet-induced MFD, the degradability of the starch within rations should be evaluated. Although animal performance was similar, some trans fatty acid isomers were persistent in the milk through the recovery phase with HDS-fed animals, suggesting that milk fat synthesis might be potentially inhibited and biohydrogenation pathways modified in the rumen following an episode of MFD.
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Affiliation(s)
- L E Koch
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - T C Jenkins
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - W C Bridges
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - B M Koch
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - G J Lascano
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634.
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Gotoh N, Yoshinaga K, Kagiono S, Katoh Y, Mizuno Y, Beppu F, Nagai T, Mizobe H, Yoshida A, Nagao K. Evaluating the Content and Distribution of Trans Fatty Acid Isomers in Foods Consumed in Japan. J Oleo Sci 2019; 68:193-202. [DOI: 10.5650/jos.ess18214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Naohiro Gotoh
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | | | - Satoshi Kagiono
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Yukiko Katoh
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Yota Mizuno
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Fumiaki Beppu
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | | | | | | | - Koji Nagao
- Department of Applied Biochemistry and Food Science, Saga University
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11
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Moore SG, O'Gorman A, Brennan L, Fair T, Butler ST. Follicular fluid and serum metabolites in Holstein cows are predictive of genetic merit for fertility. Reprod Fertil Dev 2018; 29:658-669. [PMID: 26511586 DOI: 10.1071/rd15182] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 09/27/2015] [Indexed: 11/23/2022] Open
Abstract
The aims of the present study were to: (1) characterise the metabolome of follicular fluid and serum in dairy cows with similar genetic merit for milk production but with extremes of good (Fert+) or poor (Fert-) genetic merit for fertility; and (2) identify potential biomarkers of dairy cow fertility. Follicular fluid from the first wave dominant follicle and serum were collected on Day 7 of the oestrous cycle. The most pronounced effect of genotype was noted in the serum, where the abundance of total polyunsaturated fatty acids and n-6 polyunsaturated fatty acids was greater in Fert+ cows, and the abundance of total saturated fatty acids was greater in Fert- cows. The abundance of nine fatty acids (arachidic acid, heneicosanoic acid, myristic acid, behenic acid, myristoleic acid, heptadecenoic acid, cis-11-eicosanoic acid, nervonic acid and γ-linolenic acid) in follicular fluid was affected by genotype. Concentrations of cysteine, leucine, ornithine, proline and tyrosine in follicular fluid, and asparagine, creatinine, cysteine, methionine, proline and valine in serum, were also affected by genotype. Receiver operating characteristic curve analysis indicated that the follicular fluid and serum fatty acids and follicular fluid amino acids that were significantly affected by genotype were highly predictive of fertility genotype.
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Affiliation(s)
- S G Moore
- Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, P61 C996, Ireland
| | - A O'Gorman
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland
| | - L Brennan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland
| | - T Fair
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland
| | - S T Butler
- Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, P61 C996, Ireland
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12
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Conte G, Dimauro C, Serra A, Macciotta N, Mele M. A canonical discriminant analysis to study the association between milk fatty acids of ruminal origin and milk fat depression in dairy cows. J Dairy Sci 2018; 101:6497-6510. [DOI: 10.3168/jds.2017-13941] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 02/26/2018] [Indexed: 01/22/2023]
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Yang Y, Ferreira G, Teets C, Corl B, Thomason W, Griffey C. Effects of feeding hulled and hull-less barley with low- and high-forage diets on lactation performance, nutrient digestibility, and milk fatty acid composition of lactating dairy cows. J Dairy Sci 2018; 101:3036-3043. [DOI: 10.3168/jds.2017-14082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/05/2017] [Indexed: 11/19/2022]
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Li Z, Liu N, Cao Y, Jin C, Li F, Cai C, Yao J. Effects of fumaric acid supplementation on methane production and rumen fermentation in goats fed diets varying in forage and concentrate particle size. J Anim Sci Biotechnol 2018; 9:21. [PMID: 29449940 PMCID: PMC5806233 DOI: 10.1186/s40104-018-0235-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 01/12/2018] [Indexed: 12/22/2022] Open
Abstract
Background In rumen fermentation, fumaric acid (FA) could competitively utilize hydrogen with methanogenesis to enhance propionate production and suppress methane emission, but both effects were diet-dependent. This study aimed to explore the effects of FA supplementation on methanogenesis and rumen fermentation in goats fed diets varying in forage and concentrate particle size. Methods Four rumen-cannulated goats were used in a 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments: low or high ratio of forage particle size: concentrate particle size (Fps:Cps), without or with FA supplementation (24 g/d). Fps:Cps was higher in the diet with chopped alfalfa hay plus ground corn than in that with ground alfalfa hay plus crushed corn. Results Both increasing dietary Fps:Cps and FA supplementation shifted ruminal volatile fatty acid (VFA) patterns toward more propionate and less acetate in goats. An interaction between dietary Fps:Cps and FA supplementation was observed for the ratio of acetate to propionate (A:P), which was more predominant when FA was supplemented in the low-Fps:Cps diet. Methane production was reduced by FA, and the reduction was larger in the low-Fps:Cps diet (31.72%) than in the high-Fps:Cps diet (17.91%). Fumaric acid decreased ruminal total VFA concentration and increased ruminal pH. No difference was found in ruminal DM degradation of concentrate or alfalfa hay by dietary Fps:Cps or FA. Goats presented a lower ruminal methanogen abundance with FA supplementation and a higher B. fibrisolvens abundance with high dietary Fps:Cps. Conclusions Adjusting dietary Fps:Cps is an alternative dietary model for studying diet-dependent effects without changing dietary chemical composition. Fumaric acid supplementation in the low-Fps:Cps diet showed greater responses in methane mitigation and propionate increase.
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Affiliation(s)
- Zongjun Li
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Nannan Liu
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Yangchun Cao
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Chunjia Jin
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Fei Li
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China.,2College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, 730020 China
| | - Chuanjiang Cai
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
| | - Junhu Yao
- 1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100 China
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Khiaosa-ard R, Kreuzer M, Leiber F. Apparent recovery of C18 polyunsaturated fatty acids from feed in cow milk: A meta-analysis of the importance of dietary fatty acids and feeding regimens in diets without fat supplementation. J Dairy Sci 2015; 98:6399-414. [DOI: 10.3168/jds.2015-9459] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 05/06/2015] [Indexed: 11/19/2022]
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Elgersma A. Grazing increases the unsaturated fatty acid concentration of milk from grass-fed cows: A review of the contributing factors, challenges and future perspectives. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400469] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kargar S, Ghorbani G, Fievez V, Schingoethe D. Performance, bioenergetic status, and indicators of oxidative stress of environmentally heat-loaded Holstein cows in response to diets inducing milk fat depression. J Dairy Sci 2015; 98:4772-84. [DOI: 10.3168/jds.2014-9100] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/24/2015] [Indexed: 11/19/2022]
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Gimeno A, Alami AA, Toral P, Frutos P, Abecia L, Fondevila M, Castrillo C. Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle. Anim Feed Sci Technol 2015. [DOI: 10.1016/j.anifeedsci.2015.03.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Mohammed R, Hünerberg M, McAllister TA, Beauchemin KA. Characterization of ruminal temperature and its relationship with ruminal pH in beef heifers fed growing and finishing diets. J Anim Sci 2014; 92:4650-60. [PMID: 25085389 DOI: 10.2527/jas.2014-7859] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study characterized the relationship between ruminal temperature (T rum) and pH in beef cattle fed growing and finishing diets. In Exp. 1, 16 ruminally cannulated beef heifers (388.5 ± 34.9 kg BW) were fed 4 growing diets in a replicated 4 × 4 Latin square with four 21-d periods. Diets were (DM basis) grower control (CTLg; 35% barley grain plus 5% canola meal), 40% corn dried distillers grains plus solubles (CDDGSg), 40% wheat dried distillers grains plus solubles (WDDGSg), and 37.6% WDDGSg plus 2.4% corn oil (WDDGSg+O). All diets contained 55% barley silage (DM basis). Ruminal pH and T rum were continuously monitored for 4 d each period starting on d 18. In Exp. 2, the 16 heifers were gradually transitioned (529.1 ± 41.1 kg BW) from the growing diets to 1 of 4 finishing diets in a replicated 4 × 4 Latin square with four 28-d periods. Diets were (DM basis) finisher control (CTL f), 40% corn-based distillers grains plus solubles (CDDGS f), 40% wheat-based distillers grains plus solubles (WDDGS f), and 37.4% WDDGSf + 2.6% corn oil (WDDGS f+O). All finishing diets contained 8% barley silage (DM basis). Ruminal pH and T rum were measured from d 25 to 28. With growing diets (n = 64), maximum T rum was negatively related to minimum pH (P < 0.001, r = -0.53) and positively related to starch intake (P < 0.001, r = 0.55). Maximum T rum, T rum > 40°C (h/d), and area under the curve (AUC) T rum > 38°C (area × h/d) accounted for 28.3, 9.5, and 4.7%, respectively, of the variability in minimum pH (R(2) = 0.43, P < 0.001, n = 64). Mean T rum and maximum T rum were greater for CTL g than CDDGS g, WDDGS g, and WDDGS g+O. With finishing diets (n = 63), maximum T rum was negatively related to minimum ruminal pH (P < 0.001, r = -0.63) and positively related to DMI (P < 0.001, r = 0.62) and to starch intake (P < 0.001, r = 0.58). Maximum T rum, AUC T rum > 39°C, and duration T rum > 38°C accounted for 40, 17, and 3.6%, respectively, of the variability in minimum pH (R(2) = 0.60, P < 0.001, n = 63). Mean T rum and maximum T rum were greater for CTL f than CDDGS f, WDDGS f, and WDDGS f+O. When individual animal data were examined, heifers with duration T rum > 40°C did not necessarily have greater duration pH < 5.2 or pH < 5.5. Ruminal temperature has the potential to predict ruminal pH, likely owing to the biological relationship between acid production and the heat of fermentation. Exploitation of this relationship to predict pH could provide a means of overcoming the problems associated with long-term monitoring of ruminal pH using electrode-based approaches.
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Affiliation(s)
- R Mohammed
- Agriculture and Agri-Food Canada, Lethbridge Research Center, Lethbridge, AB, Canada
| | - M Hünerberg
- Agriculture and Agri-Food Canada, Lethbridge Research Center, Lethbridge, AB, Canada
| | - T A McAllister
- Agriculture and Agri-Food Canada, Lethbridge Research Center, Lethbridge, AB, Canada
| | - K A Beauchemin
- Agriculture and Agri-Food Canada, Lethbridge Research Center, Lethbridge, AB, Canada
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Li F, Li Z, Li S, Ferguson JD, Cao Y, Yao J, Sun F, Wang X, Yang T. Effect of dietary physically effective fiber on ruminal fermentation and the fatty acid profile of milk in dairy goats. J Dairy Sci 2014; 97:2281-90. [DOI: 10.3168/jds.2013-6895] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 01/02/2014] [Indexed: 11/19/2022]
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Alves SP, Bessa RJB. Thetrans-10,cis-15 18:2: a Missing Intermediate oftrans-10 Shifted Rumen Biohydrogenation Pathway? Lipids 2014; 49:527-41. [DOI: 10.1007/s11745-014-3897-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 03/07/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Susana P. Alves
- ; CIISA, Faculdade de Medicina Veterinária (FMV); Universidade de Lisboa (ULisboa); Av. da Universidade Técnica Lisbon 1300-477 Portugal
| | - Rui J. B. Bessa
- ; CIISA, Faculdade de Medicina Veterinária (FMV); Universidade de Lisboa (ULisboa); Av. da Universidade Técnica Lisbon 1300-477 Portugal
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Aldai N, de Renobales M, Barron LJR, Kramer JKG. What are thetransfatty acids issues in foods after discontinuation of industrially producedtransfats? Ruminant products, vegetable oils, and synthetic supplements. EUR J LIPID SCI TECH 2013. [DOI: 10.1002/ejlt.201300072] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Noelia Aldai
- Lactiker Research Group; Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU); Vitoria-Gasteiz Spain
| | - Mertxe de Renobales
- Lactiker Research Group; Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU); Vitoria-Gasteiz Spain
| | - Luis Javier R. Barron
- Lactiker Research Group; Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU); Vitoria-Gasteiz Spain
| | - John K. G. Kramer
- Guelph Food Research Centre; Agriculture & Agri-Food Canada; Guelph ON Canada
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24
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Dietary grain source and oil supplement: Feeding behavior and lactational performance of Holstein cows. Livest Sci 2013. [DOI: 10.1016/j.livsci.2013.08.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Martínez-Pérez MF, Calderón-Mendoza D, Islas A, Encinias AM, Loya-Olguín F, Soto-Navarro SA. Effect of corn dry distiller grains plus solubles supplementation level on performance and digestion characteristics of steers grazing native range during forage growing season. J Anim Sci 2012; 91:1350-61. [PMID: 23230120 DOI: 10.2527/jas.2012-5251] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Two experiments were conducted to evaluate effects of corn dry distiller grains plus condensed solubles (DDGS) supplementation level on performance digestion characteristics of steers grazing native range during the forage growing season. In the performance study, 72 (206 ± 23.6 kg; 2008) and 60 (230 ± 11.3 kg; 2009) English crossbred steer calves were used in a randomized complete block design replicated over 2 yr. The grazing periods lasted 56 and 58 d and started on August 11 and 18 for 2008 and 2009, respectively. Each year, steers were blocked by BW (light, medium, and heavy), stratified by BW within blocks, and randomly assigned to 1 of 4 grazing groups. Each grazing group (6 steers in 2008 and 5 in 2009) was assigned to a DDGS supplementation levels (0, 0.2, 0.4, and 0.6% BW). Grazing group served as the experimental unit with 12 groups per year receiving 1 of 4 treatments for 2 yr (n = 6). In the metabolism study, 16 English crossbred steers (360 ± 28.9 kg) fitted with ruminal cannulas grazing native range during the summer growing season were used in a completely randomized design to evaluate treatment effects on forage intake and digestion. The experiment was conducted during the first and second weeks of October 2008. Steers were randomly assigned to supplement level (0, 0.2, 0.4, and 0.6% BW; n = 4) and grazed a single native range pasture with supplements offered individually once daily at 0700 h. In the performance study, ADG (0.64, 0.75, 0.80, and 0.86 ± 0.03 kg/d for 0, 0.2, 0.4, and 0.6% BW, respectively) increased linearly (P = 0.01) with increasing DDGS supplementation level. In the metabolism study, forage OM, NDF, CP, and ether extract (EE) intake decreased (P ≤ 0.05) linearly with increasing DDGS supplementation level. Total CP and EE intake increased (P ≤ 0.002) with increasing DDGS supplementation level. Digestibility of OM, NDF, and EE increased (linear; P ≤ 0.008) whereas the soluble CP fraction of forage masticate sample linearly increased (P = 0.01) and slowly degradable CP fraction linearly decreased (P = 0.05) with increasing DDGS supplementation level. Forage in situ masticate DM and NDF disappearance rate decreased (quadratic; P ≤ 0.05) and DDGS in situ DM disappearance rate increased (linear; P = 0.03) with increasing supplementation levels. These results indicate that DDGS supplementation enhanced grazing performance and total-tract digestion of steers grazing native range during the forage growing season.
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Affiliation(s)
- M F Martínez-Pérez
- Animal and Range Sciences Department, New Mexico State University, Las Cruces 88003-8003, USA
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Aldai N, Lavín P, Kramer JK, Jaroso R, Mantecón AR. Breed effect on quality veal production in mountain areas: emphasis on meat fatty acid composition. Meat Sci 2012; 92:687-96. [DOI: 10.1016/j.meatsci.2012.06.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 06/12/2012] [Accepted: 06/13/2012] [Indexed: 11/26/2022]
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Avila-Stagno J, Chaves AV, He ML, Harstad OM, Beauchemin KA, McGinn SM, McAllister TA. Effects of increasing concentrations of glycerol in concentrate diets on nutrient digestibility, methane emissions, growth, fatty acid profiles, and carcass traits of lambs. J Anim Sci 2012; 91:829-37. [PMID: 23148243 DOI: 10.2527/jas.2012-5215] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Two experiments were conducted to evaluate the effects of increasing concentrations of glycerol in concentrate diets on total tract digestibility, methane (CH4) emissions, growth, fatty acid profiles, and carcass traits of lambs. In both experiments, the control diet contained 57% barley grain, 14.5% wheat dried distillers grain with solubles (WDDGS), 13% sunflower hulls, 6.5% beet pulp, 6.3% alfalfa, and 3% mineral-vitamin mix. Increasing concentrations (7, 14, and 21% dietary DM) of glycerol in the dietary DM were replaced for barley grain. As glycerol was added, alfalfa meal and WDDGS were increased to maintain similar concentrations of CP and NDF among diets. In Exp.1, nutrient digestibility and CH4 emissions from 12 ram lambs were measured in a replicated 4 × 4 Latin square experiment. In Exp. 2, lamb performance was evaluated in 60 weaned lambs that were blocked by BW and randomly assigned to 1 of the 4 dietary treatments and fed to slaughter weight. In Exp. 1, nutrient digestibility and CH4 emissions were not altered (P = 0.15) by inclusion of glycerol in the diets. In Exp.2, increasing glycerol in the diet linearly decreased DMI (P < 0.01) and tended (P = 0.06) to reduce ADG, resulting in a linearly decreased final BW. Feed efficiency was not affected by glycerol inclusion in the diets. Carcass traits and total SFA or total MUFA proportions of subcutaneous fat were not affected (P = 0.77) by inclusion of glycerol, but PUFA were linearly decreased (P < 0.01). Proportions of 16:0, 10t-18:1, linoleic acid (18:2 n-6) and the n-6/n-3 ratio were linearly reduced (P < 0.01) and those of 18:0 (stearic acid), 9c-18:1 (oleic acid), linearly increased (P < 0.01) by glycerol. When included up to 21% of diet DM, glycerol did not affect nutrient digestibility or CH4 emissions of lambs fed barley based finishing diets. Glycerol may improve backfat fatty acid profiles by increasing 18:0 and 9c-18:1 and reducing 10t-18:1 and the n-6/n-3 ratio.
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Affiliation(s)
- J Avila-Stagno
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW 2006, Australia
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Mohammed R, Stevenson D, Weimer P, Penner G, Beauchemin K. Individual animal variability in ruminal bacterial communities and ruminal acidosis in primiparous Holstein cows during the periparturient period. J Dairy Sci 2012; 95:6716-30. [DOI: 10.3168/jds.2012-5772] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 07/28/2012] [Indexed: 11/19/2022]
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The labile lipid fraction of meat: From perceived disease and waste to health and opportunity. Meat Sci 2012; 92:210-20. [DOI: 10.1016/j.meatsci.2012.03.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 03/29/2012] [Accepted: 03/30/2012] [Indexed: 02/07/2023]
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Aldai N, Klieve AV, Dugan MER, Kramer JKG, Ouwerkerk D, Aalhus JL, McKinnon JJ, McAllister TA. Evaluation of rumen fatty acid hydrogenation intermediates and differences in bacterial communities after feeding wheat- or corn-based dried distillers grains to feedlot cattle1. J Anim Sci 2012; 90:2699-709. [DOI: 10.2527/jas.2010-3671] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N. Aldai
- Lacombe Research Center, Agriculture & Agri-Food Canada, Lacombe, T4L 1W1, Alberta, Canada
| | - A. V. Klieve
- Ecosciences Precinct, Department of Employment, Economic Development and Innovation, Dutton Park, Queensland, 4102, Australia
- School of Agriculture and Food Sciences, University of Queensland, Gatton, Queensland, 4343, Australia
| | - M. E. R. Dugan
- Lacombe Research Center, Agriculture & Agri-Food Canada, Lacombe, T4L 1W1, Alberta, Canada
| | - J. K. G. Kramer
- Guelph Food Research Center, Agriculture & Agri-Food Canada, Guelph N1G 5C9, Ontario, Canada
| | - D. Ouwerkerk
- Ecosciences Precinct, Department of Employment, Economic Development and Innovation, Dutton Park, Queensland, 4102, Australia
| | - J. L. Aalhus
- Lacombe Research Center, Agriculture & Agri-Food Canada, Lacombe, T4L 1W1, Alberta, Canada
| | - J. J. McKinnon
- Department of Animal & Poultry Science, University of Saskatchewan, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - T. A. McAllister
- Lethbridge Research Center, Agriculture & Agri-Food Canada, Lethbridge, T1J 4B1, Alberta, Canada
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Dugan M, Aldai N, Aalhus J, Rolland D, Kramer J. Review:Trans-forming beef to provide healthier fatty acid profiles. CANADIAN JOURNAL OF ANIMAL SCIENCE 2011. [DOI: 10.4141/cjas2011-044] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Dugan, M. E. R., Aldai, N., Aalhus, J. L., Rolland, D. C. and Kramer, J. K. G. 2011. Review: Trans- forming beef to provide healthier fatty acid profiles. Can. J. Anim. Sci. 91: 545–556.Trans fatty acids are found naturally in foods, particularly in those derived from ruminant animals, such as beef and dairy cattle. Over the past few decades, human consumption of trans fatty acids has increased, but this has been mainly from products containing partially hydrogenated vegetable oils. The correlation of trans fatty acid consumption with diseases such as coronary heart disease has been cause for concern, and led to recommendations to reduce their consumption. Trans fatty acids, however, have differing effects on human health. Therefore, in foods produced from ruminant animals, it is important to know their trans fatty acid composition, and how to enrich or deplete fatty acids that have positive or negative health effects. This review will cover the analysis of trans fatty acids in beef, their origin, how to manipulate their concentrations, and give a brief overview of their health effects.
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Affiliation(s)
- Michael Dugan
- Lacombe Research Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada T4L 1W1
| | - Noelia Aldai
- Lacombe Research Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada T4L 1W1
| | - Jennifer Aalhus
- Lacombe Research Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada T4L 1W1
| | - David Rolland
- Lacombe Research Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada T4L 1W1
| | - John Kramer
- Lacombe Research Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada T4L 1W1
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Mohammed R, Khorasani R, Goonewardene L, Kramer J, Kennelly J. Persistency of milk trans-18:1 isomers and rumenic acid in Holstein cows over a full lactation. CANADIAN JOURNAL OF ANIMAL SCIENCE 2011. [DOI: 10.4141/cjas10059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mohammed, R., Khorasani, R. G., Goonewardene, L. A., Kramer, J. K. G. and Kennelly, J. J. 2011. Persistency of milk trans-18:1 isomers and rumenic acid in Holstein cows over a full lactation. Can. J. Anim. Sci. 91: 147–167. A long-term lactation study was undertaken to determine whether the previously reported short-term persistency in vaccenic acid [VA; trans(t)11-18:1] and rumenic acid (RA) could be maintained. To test this hypothesis, 24 Holstein cows were allotted to two experimental diets (control and test) from 2 wk before calving until they were 270 d in milk (DIM). The test diet was similar to the control diet, but supplemented with sunflower seed (11.2% diet DM), fish oil (0.5%) and monensin (22 mg/kg DM) by replacing an equivalent amount of barley grain. The forage: concentrate ratio was 50:50 (DM basis) with 35% barley silage and 15% alfalfa hay. Milk was sampled every fortnight from the start of lactation until cows were 270 DIM. Data obtained were averaged into three equal periods of 90 d each, representing three stages of lactation (SOL): early-lactation (EL), mid-lactation (ML) and late-lactation (LL). Dry matter intakes were not different between treatments with greater intakes observed during ML than during EL or LL. Milk yield was not different between treatments and decreased with increasing DIM. Milk fat content and yield showed interaction between treatment and SOL with lower values observed for the test diet than control diet during EL and ML. De novo synthesized fatty acids (4:0–15:0), 16:0–16:1 and preformed fatty acids (17:0 and above) showed interaction between treatment and SOL with the former two being greater for control diet than test diet and the latter greater for the test diet than control diet within each SOL. Milk t10-18:1 (% fatty acid methyl esters, FAME) was greater for the test diet compared with control diet (4.38 vs. 1.32) and was greater during ML (3.79) than during EL (2.38) or LL (2.38). Milk VA and RA showed interactions between treatment and SOL with greater values observed for the test diet than the control diet within each SOL. When analyzed by treatment, milk VA was not different across SOL for both diets. Milk RA was not different across SOL for the test diet, but was different for the control diet; it was lower during EL than during ML. Step-wise regression analysis revealed that the variability in milk RA for the control diet (P<0.01; R2=0.97) was determined by VA (70%) and RA/VA (27%); and for the test diet (P<0.01; R2=0.987) by VA (88.7%), RA/VA (5%) and t10-18:1 (3.8%). Desaturase index based on RA/VA showed an interaction between treatment and SOL; it was greater for the control diet than the test diet within each SOL. Overall findings revealed that the differences in milk t10- and VA across SOL reflected possible differences in starch and PUFA intakes, respectively. Differences in milk RA across SOL for the control diet could be attributed to possible differences in mammary desaturase activity based on differences in RA/VA.
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Affiliation(s)
- Riazuddin Mohammed
- Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada T6G 2P5 (e-mail: )
| | - Reza Khorasani
- Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada T6G 2P5 (e-mail: )
| | - Laksiri Goonewardene
- Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada T6G 2P5 (e-mail: )
| | - John Kramer
- Agriculture and Agri-Food Canada, Guelph, Ontario, Canada N1G 5C9
| | - John Kennelly
- Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada T6G 2P5 (e-mail: )
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Naqvi SMK, Soren NM, Karim SA. Effect of concentrate supplementation on performance, ovarian response, and some biochemical profile of Malpura ewes. Trop Anim Health Prod 2011; 43:905-13. [PMID: 21287364 DOI: 10.1007/s11250-011-9782-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2011] [Indexed: 10/18/2022]
Abstract
Effect of feed flushing on ovulation rate was investigated during the autumn seasons on 24 adult Malpura ewes (BW 34.8 ± 0.58 kg and age 4-7 years) equally divided into two groups. Ewes in G1 (group 1) were grazed 8-10 h daily on Cenchrus ciliaris pasture interspersed with seasonal shrub. In addition to grazing, concentrate was provided at 1.5% of BW to the animals in G2 (group 2) for a period of 35 days. Estrus was synchronized by a double injection schedule of PGF(2α) at 0 and 10 days of the experiment and detected by parading aproned rams at 6 h intervals. Blood samples were collected at weekly interval during the estrous cycle. A rumen fermentation study was conducted on day 23 of the experiment at 0 and 4 h post-concentrate feeding. Ovarian responses in terms of number of corpora lutea and large follicles was examined on all the ewes by laparoscopy after 3 to 6 days of each estrus and were found to be similar in both the groups. Hemoglobin and packed cell volume, total protein, albumin, and globulin were similar among the groups. Concentration of plasma glucose (12 and 22 days) was higher (P < 0.05) in G2 vis-à-vis control. Plasma urea was higher (P < 0.01) in the control than G2. Rumen liquor pH, concentration of total N, TCA-ppt N, NH(3)-N, and TVFA were significantly higher (P < 0.01) in G2 than the control. Thus, it can be concluded that concentrate supplementation in ewes prior to mating (flushing) did not enhance ovulation response during the autumn season.
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Affiliation(s)
- S M K Naqvi
- Division of Physiology and Biochemistry, Central Sheep and Wool Research Institute, Avikanagar, Via-Jaipur, Rajasthan, India.
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Aldai N, Dugan ME, Kramer JK. Can the trans-18:1 and conjugated linoleic acid profiles in retail ground beef be healthier than steak? J Food Compost Anal 2010. [DOI: 10.1016/j.jfca.2010.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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