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Hadfield JA, Waldron BL, Isom SC, Feuz R, Larsen R, Creech JE, Rose MF, Long J, Peel MD, Miller RL, Rood KA, Young A, Stott R, Sweat A, Thornton KJ. The effects of organic grass and grass-birdsfoot trefoil pastures on Jersey heifer development: Heifer growth, performance, and economic impact. J Dairy Sci 2021; 104:10863-10878. [PMID: 34389144 DOI: 10.3168/jds.2020-19524] [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: 08/25/2020] [Accepted: 06/18/2021] [Indexed: 11/19/2022]
Abstract
Dairy heifers developed in certified organic programs, especially those utilizing pasture-based management schemes, have lower rates of gain than heifers raised in nonorganic confinement production systems in temperate climates, such as in the Intermountain West region of the United States. This study investigates the effects that different forages in a rotational grazing system have on development of organically raised Jersey heifers. Over 3 years, 210 yearling Jersey heifers were randomly assigned to one of 9 treatments, including a conventional confinement control where animals were fed a total mixed ration or one of 8 pasture treatments: Cache Meadow bromegrass (Brumus riparius Rehmann), QuickDraw orchard grass (Dactylis glomerata L.), Amazon perennial ryegrass (Lolium perenne L.), or Fawn tall fescue (Schendonorus arundinaceus [Schreb.] Dumort) and each individual grass interseeded with birdsfoot trefoil (Lotus corniculatus L., BFT). Each treatment had 3 blocks/yr over the 3-yr period, with each block having a 0.4 ha pasture of each treatment. Every 35 d, over a 105-d period, heifers were weighed and measured for hip height, and blood samples were collected to determine serum insulin-like growth factor-1 and blood urea nitrogen concentrations. Fecal egg counts were also assessed. Heifer body weight (BW), blood urea nitrogen, and insulin-like growth factor-1 concentrations were affected by treatment when analyzed over time. Heifers on grass-BFT pastures had increased BW compared with heifers on monoculture grass pastures. Heifers receiving a total mixed ration or perennial ryegrass+BFT had increased BW gain over the 105-d period compared with heifers grazing tall fescue+BFT, orchard grass, perennial ryegrass, meadow bromegrass, or tall fescue. Individually for all grass species, heifers grazing +BFT pastures had greater ending BW and weight gain than heifers grazing the respective grass monocultures. Furthermore, weight gain for heifers on perennial ryegrass+BFT, meadow bromegrass+BFT, and orchard grass+BFT were not different from those on a total mixed ration. Heifers grazing grass-BFT pastures had increased blood urea nitrogen compared with heifers grazing monoculture grass pastures. Heifer hip height and fecal egg counts were not affected by treatment. These results show that the addition of BFT to organic pasture improves growth of grazing replacement heifers. Economic analyses also demonstrate that interseeding grass pastures with BFT results in an increased economic return compared with grazing monoculture grass pastures. Grass pastures interseeded with BFT may be a sustainable option to achieve adequate growth of Jersey heifers raised in an organic pasture scenario in a temperate climate.
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Affiliation(s)
- Jacob A Hadfield
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Blair L Waldron
- Forage and Range Research Laboratory, USDA-Agricultural Research Service, Logan 84322-6300
| | - S Clay Isom
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Ryan Feuz
- Agricultural Economics Department, Utah State University, Logan 84322-4820
| | - Ryan Larsen
- Agricultural Economics Department, Utah State University, Logan 84322-4820
| | - J Earl Creech
- Plants, Soils, and Climate Department, Utah State University, Logan 84322-4820
| | - Marcus F Rose
- Plants, Soils, and Climate Department, Utah State University, Logan 84322-4820
| | - Jenny Long
- Applied Sciences, Technology, and Education Department, Utah State University, Logan 84322-2300
| | - Michael D Peel
- Forage and Range Research Laboratory, USDA-Agricultural Research Service, Logan 84322-6300
| | - Rhonda L Miller
- Applied Sciences, Technology, and Education Department, Utah State University, Logan 84322-2300
| | - Kerry A Rood
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Allen Young
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Rusty Stott
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Alexis Sweat
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815
| | - Kara J Thornton
- Animal, Dairy, and Veterinary Sciences Department, Utah State University, Logan 84322-4815.
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Effect of essential oils on cattle gastrointestinal nematodes assessed by egg hatch, larval migration and mortality testing. J Helminthol 2019; 94:e111. [PMID: 31843032 DOI: 10.1017/s0022149x19001081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The efficacy of eight essential oils (EOs) (Solidago canadensis, Eucalyptus globulus, Pelargonium asperum, Ocimum basilicum, Thymus vulgaris, Mentha piperita, Cymbopogon citratus and Cymbopogon martinii) against gastrointestinal nematodes (GINs) was evaluated using eggs collected from naturally infected cattle and cultured infective larvae (L3). The larvae species cultured from the faecal samples and subjected to two in vitro tests were Haemonchus spp. (55.5%), Trichostrongylus spp. (28.0%), Cooperia spp. (15.0%) and Oesophagostomum spp. (1.5%). The genus of EO Cymbopogon (C. citratus and C. martinii) showed the highest anthelmintic activity at the dose of 8.75 mg/ml, for the egg hatch, the larval migration and mortality assays. All of the EOs tested reduced egg hatching to rates <19.0%, compared to the controls (water and water + Tween 20) that had rates >92.0%. Cymbopogon citratus and C. martinii treatments resulted in 11.6 and 8.1% egg hatch, had the lowest migration of larvae through sieves, 60.5 and 54.9%, and the highest mortality rates, 63.3 and 56.3%, respectively. Dose-response tests showed that EO from C. citratus had the lowest larval LC50 and migration inhibition concentration (IC50) values of 3.89 and 7.19 mg/ml, respectively, compared to two other EOs (C. martinii and O. basilicum). The results suggest that EOs from the genus Cymbopogon can be interesting candidates for nematode control in cattle, although it may prove challenging to deliver concentrations to the gastrointestinal tract sufficient to effectively manage GINs.
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PEÑA-ESPINOZA MIGUEL, THAMSBORG STIGM, DESRUES OLIVIER, HANSEN TINAVA, ENEMARK HEIDIL. Anthelmintic effects of forage chicory (Cichorium intybus) against gastrointestinal nematode parasites in experimentally infected cattle. Parasitology 2016; 143:1279-93. [PMID: 27173405 PMCID: PMC4988272 DOI: 10.1017/s0031182016000706] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/23/2016] [Accepted: 03/29/2016] [Indexed: 12/11/2022]
Abstract
Two experiments studied the effects of dietary chicory against gastrointestinal nematodes in cattle. In Experiment (Exp.) 1, stabled calves were fed chicory silage (CHI1; n = 9) or ryegrass/clover hay (CTL1; n = 6) with balanced protein/energy intakes between groups. After 16 days, all calves received 10 000 Ostertagia ostertagi and 66 000 Cooperia oncophora third-stage larvae (L3) [day (D) 0 post-infection (p.i.)]. In Exp. 2, calves were assigned to pure chicory (CHI2; n=10) or ryegrass/clover (CTL2; n = 10) pastures. After 7 days, animals received 20 000 O. ostertagi L3/calf (D0 p.i.) and were moved regularly preventing pasture-borne infections. Due to poor regrowth of the chicory pasture, CHI2 was supplemented with chicory silage. At D40 p.i. (Exp. 1) and D35 p.i. (Exp. 2) calves were slaughtered for worm recovery. In Exp.1, fecal egg counts (FEC) were similar between groups. However, O. ostertagi counts were significantly reduced in CHI1 by 60% (geometric mean; P < 0·01), whereas C. oncophora burdens were unaffected (P = 0·12). In Exp. 2, FEC were markedly lowered in CHI2 from D22 p.i onwards (P < 0·01). Ostertagia ostertagi adult burdens were significantly reduced in CHI2 by 66% (P < 0·001). Sesquiterpene lactones were identified only in chicory (fresh/silage). Chicory shows promise as an anti-Ostertagia feed for cattle and further studies should investigate its on-farm use.
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Affiliation(s)
- MIGUEL PEÑA-ESPINOZA
- Section for Bacteriology, Pathology and
Parasitology, National Veterinary Institute,
Technical University of Denmark, Bülowsvej
27, 1870 Frederiksberg C, Denmark
| | - STIG M. THAMSBORG
- Section for Parasitology and Aquatic
Diseases, Department of Veterinary Disease Biology,
Faculty of Health and Medical Sciences, University of
Copenhagen, Dyrlægevej 100, 1870
Frederiksberg C, Denmark
| | - OLIVIER DESRUES
- Section for Parasitology and Aquatic
Diseases, Department of Veterinary Disease Biology,
Faculty of Health and Medical Sciences, University of
Copenhagen, Dyrlægevej 100, 1870
Frederiksberg C, Denmark
| | - TINA V. A. HANSEN
- Section for Parasitology and Aquatic
Diseases, Department of Veterinary Disease Biology,
Faculty of Health and Medical Sciences, University of
Copenhagen, Dyrlægevej 100, 1870
Frederiksberg C, Denmark
| | - HEIDI L. ENEMARK
- Section for Bacteriology, Pathology and
Parasitology, National Veterinary Institute,
Technical University of Denmark, Bülowsvej
27, 1870 Frederiksberg C, Denmark
- Norwegian Veterinary Institute,
Section for Parasitology, PO Box 750
Sentrum, N-0106, Norway
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