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Beltrán IE, Al-Marashdeh O, Burgos AR, Gregorini P, Balocchi OA, Wittwer F, Pulido RG. The Order of Grass and Maize Silage Supplementation Modifies Milk Yield, Grazing Behavior and Nitrogen Partitioning of Lactating Dairy Cows. Animals (Basel) 2019; 9:ani9060373. [PMID: 31248163 PMCID: PMC6617380 DOI: 10.3390/ani9060373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/17/2019] [Accepted: 06/16/2019] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to evaluate the effects of the order of grass silage (GS) and maize silage (MS) supplementation on milk yield, grazing behavior and nitrogen (N) partitioning of lactating dairy cows during autumn. Thirty-six Holstein-Friesian dairy cows were randomly assigned to one of three treatments, and cows remained on these treatments for a 62 days period: (1) MIX; cows supplemented with 3 kg of dry matter (DM) of silage containing 1.5 kg DM of MS and 1.5 kg DM of GS in both the morning and afternoon; (2) GS-MS; cows supplemented with 3 kg DM of GS in the morning and 3 kg DM of MS in the afternoon; (3) MS-GS; cows supplemented with 3 kg DM of MS in the morning and 3 kg DM of GS in the afternoon. All cows received a pasture allowance of 17 kg DM/cow/d and 3 kg DM of concentrate. Grazing time and pasture intake were unaffected by treatment; however, milk production was greater for MS-GS, while milk protein was greater for GS-MS. Urinary N excretion was greater for MS-GS than MIX. In conclusion, MS-GS resulted in high milk yield but also high urinary N excretion, while MIX resulted in low urinary N excretion but also decreased milk yield.
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Affiliation(s)
- Ignacio E Beltrán
- Graduate School, Faculty of Veterinary Sciences, Universidad Austral de Chile, P.O. Box 567, Valdivia, Chile.
- Instituto de Investigaciones Agropecuarias, INIA Remehue, Ruta 5 Norte, km 8, Osorno 5290000, Chile.
| | - Omar Al-Marashdeh
- Department of Agricultural Sciences, Lincoln University, P.O. Box 7647, Lincoln, New Zealand.
| | - Ana R Burgos
- Graduate School, Faculty of Veterinary Sciences, Universidad Austral de Chile, P.O. Box 567, Valdivia, Chile.
| | - Pablo Gregorini
- Department of Agricultural Sciences, Lincoln University, P.O. Box 7647, Lincoln, New Zealand.
| | - Oscar A Balocchi
- Animal Production Institute, Faculty of Agricultural Sciences, Universidad Austral de Chile, P.O. Box 567, Valdivia, Chile.
| | - Fernando Wittwer
- Veterinary Clinical Sciences Institute, Faculty of Veterinary Sciences, Universidad Austral de Chile, P.O. Box 567, Valdivia, Chile.
| | - Rubén G Pulido
- Animal Science Institute, Faculty of Veterinary Sciences, Universidad Austral de Chile, P.O. Box 567, Valdivia, Chile.
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Alstrup L, Søegaard K, Weisbjerg M. Effects of maturity and harvest season of grass-clover silage and of forage-to-concentrate ratio on milk production of dairy cows. J Dairy Sci 2016; 99:328-40. [DOI: 10.3168/jds.2015-9802] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/09/2015] [Indexed: 12/14/2022]
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Ruiz-Albarrán M, Balocchi OA, Noro M, Wittwer F, Pulido RG. Effect of the type of silage on milk yield, intake and rumen metabolism of dairy cows grazing swards with low herbage mass. Anim Sci J 2015; 87:878-84. [PMID: 26420350 DOI: 10.1111/asj.12513] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 06/10/2015] [Accepted: 06/23/2015] [Indexed: 11/30/2022]
Abstract
The aim of this study was to evaluate the effect of herbage allowance (HA) and type of silage supplemented (TS) on milk yield, dry matter intake (DMI) and metabolism of dairy cows in early lactation. Thirty-six Holstein-Friesian dairy cows were allocated to four treatments derived from an arrangement of two HA (LHA = 17 or HHA = 25 kg of DM/cow/day) and two TS (grass (GS) or maize (MS)). Herbage allowance had no effect on DMI or milk yield. Rumen pH and NH3 -N concentration were not affected by HA. The efficiency of microbial protein synthesis in the rumen (microbial protein (MP)) was affected by HA with 21.5 and 23.9 g microbial nitrogen per kg ruminal digestible organic matter for LHA and HHA, respectively (P < 0.05). Supplementation with MS showed higher values of milk yield by 2.4 kg/cow/day (P < 0.001), milk protein content by 0.10 % (P < 0.023) and herbage DMI by 2.2 kg/cow/day, and showed lower values for milk urea compared to GS (P < 0.001). The former results suggest that TS had a greater effect on milk yield, total feed intake and energy intake than increase in herbage allowance; however, increase in HA had greater effects on MP than TS.
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Affiliation(s)
| | | | - Mirela Noro
- Institute of Veterinary Clinical Science- Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Fernando Wittwer
- Institute of Veterinary Clinical Science- Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Rubén G Pulido
- Institute of Animal Science, Faculty of Veterinary Sciences
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Alstrup L, Weisbjerg M, Hymøller L, Larsen M, Lund P, Nielsen M. Milk production response to varying protein supply is independent of forage digestibility in dairy cows. J Dairy Sci 2014; 97:4412-22. [DOI: 10.3168/jds.2013-7585] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 04/02/2014] [Indexed: 11/19/2022]
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Habib M, Pollott G, Leaver D. Digestibility and nitrogen balance of high- and low-quality forages supplemented with high- and low-protein concentrates fed to two breeds of cattle. JOURNAL OF APPLIED ANIMAL RESEARCH 2011. [DOI: 10.1080/09712119.2011.607891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Masuma Habib
- a Graduate Training Institute, Bangladesh Agricultural University , Mymensingh, Bangladesh
| | - Geoff Pollott
- b Veterinary Basic Sciences , The Royal Veterinary College , Royal College Street, London, UK
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