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RESEARCH ARTICLE

Pasture intake and milk production of dairy cows grazing annual ryegrass with or without corn silage supplementation

Marcolino Frederico Miguel A , Henrique Mendonça Nunes Ribeiro-Filho A D , Ederson Américo de Andrade A , Teresa Cristina Moraes Genro B and Rémy Delagarde C
+ Author Affiliations
- Author Affiliations

A Universidade do Estado de Santa Catarina, Centro de Ciências Agroveterinárias, Lages, SC, Brazil.

B Empresa Brasileira de Pesquisa Agropecuária, EMBRAPA Pecuária Sul, Bagé, RS, Brazil.

C INRA, UMR1348, Physiologie, Environnement et Génetique pour l’Animal et les Systèmes d’Elevage (PEGASE), F-35590, Saint-Gilles, France.

D Corresponding author. Email: henrique.ribeiro@udesc.br

Animal Production Science 54(10) 1810-1816 https://doi.org/10.1071/AN14382
Submitted: 14 March 2014  Accepted: 30 June 2014   Published: 19 August 2014

Abstract

The use of corn silage to supplement grazing dairy cows can improve milk production and nutrient intake when the substitution rate is low. This enhancement occurs by increasing the total DM intake. The hypothesis tested in this study was that increasing corn silage supplementation level of dairy cows grazing annual ryegrass at medium pasture allowance could increase substitution rate and decrease milk production response. Three supplementation levels (0, 4 and 8 kg DM/day) were compared for dairy cows strip-grazing annual ryegrass (Lolium multiflorum cv. Common). The study was arranged as a 3 × 3 Latin square design, repeated three times using nine Holstein lactating cows. The supplement was a 7 : 1 mixture based on the DM of corn silage and soybean meal and was offered individually twice daily after the morning and afternoon milkings. Each treatment group of cows grazed separately at a common daily pasture allowance of 35 kg DM/cow to ground level. Each experimental period was 12 days, with an 8-day adaptation and a 4-day measurement period. The individual pasture intake was measured from Day 9 to Day 12 using the n-alkane technique. The daily pattern of grazing and ruminating times were measured by visual observations. The supplement DM intake was lower than expected, averaging 3.0 and 4.3 kg DM/day for cows receiving 4 and 8 kg DM/day, respectively. Pasture and supplement energy value were 7.0 and 6.3 MJ of NEL/kg DM, respectively. The substitution rate averaged 0.2 and was unaffected by the supplementation level. The pasture intake was similar for all treatments (14.0 kg of DM/day), and total DM intake and milk production (+0.5 kg of milk/kg DM of supplement) increased linearly with increasing supplementation level. The daily grazing time was shorter by 111 min/day for the supplemented cows than for the unsupplemented cows. Cows grazing the annual ryegrass at medium pasture allowance improved their total DM intake and individual performance when supplemented with corn silage.

Additional keywords: grazing behaviour, milk response, pasture mass, substitution rate.


References

AOAC (1997) ‘Official methods of analysis.’ 16th edn. (Association of Official Analytical Chemists: Gaithersburg, MD)

Barre P, Emile JC, Betin M, Surault F, Ghesquière M, Hazard L (2006) Morphological characteristics of perennial ryegrass leaves that influence short-term intake in dairy cows. Agronomy Journal 98, 978–985.
Morphological characteristics of perennial ryegrass leaves that influence short-term intake in dairy cows.Crossref | GoogleScholarGoogle Scholar |

Barrett PD, Laidlaw AS, Mayne CS, Christie H (2001) Pattern of herbage intake rate and bite dimensions of rotationally grazed dairy cows as sward height declines. Grass and Forage Science 56, 362–373.
Pattern of herbage intake rate and bite dimensions of rotationally grazed dairy cows as sward height declines.Crossref | GoogleScholarGoogle Scholar |

Coulon JB, Rémond B (1991) Variations in milk output and milk protein content in response to the level of energy supply to the dairy cow: a review. Livestock Production Science 29, 31–47.
Variations in milk output and milk protein content in response to the level of energy supply to the dairy cow: a review.Crossref | GoogleScholarGoogle Scholar |

Delaby L, Peyraud JL, Delagarde R (2001) Effect of the level of concentrate supplementation, herbage allowance and milk yield at turn-out on the performance of dairy cows in mid lactation at grazing. Animal Science 73, 171–181.

Delagarde R, Faverdin P, Baratte C, Peyraud JL (2011a) GrazeIn: a model of herbage intake and milk production for grazing dairy cows. 2. Prediction of intake under rotational and continuously stocked grazing management. Grass and Forage Science 66, 45–60.
GrazeIn: a model of herbage intake and milk production for grazing dairy cows. 2. Prediction of intake under rotational and continuously stocked grazing management.Crossref | GoogleScholarGoogle Scholar |

Delagarde R, Valk H, Mayne CS, Rook AJ, Gonzales-Rodriguez A, Baratte C, Faverdin P, Peyraud JL (2011b) GrazeIn: a model of herbage intake and milk production for grazing dairy cows. 3. Simulations and external validation of the model. Grass and Forage Science 66, 61–77.
GrazeIn: a model of herbage intake and milk production for grazing dairy cows. 3. Simulations and external validation of the model.Crossref | GoogleScholarGoogle Scholar |

Dove J, Mayes RW (2006) Protocol for the analysis of n-alkanes and other plant-wax compounds and for their use as markers for quantifying the nutrient supply of large mammalian herbivores. Nature Protocols 1, 1680–1697.
Protocol for the analysis of n-alkanes and other plant-wax compounds and for their use as markers for quantifying the nutrient supply of large mammalian herbivores.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXhtFagtrfE&md5=7939c00ced7d742305ce85d2db287bf1CAS |

Hernandez-Mendo O, Leaver JD (2010) Choice of grazed herbage or maize silage by lactating dairy cows: influence of sward height and concentrate level. Arquivo Brasileiro de Medicina Veterinária e Zootecnia 62, 1158–1166.
Choice of grazed herbage or maize silage by lactating dairy cows: influence of sward height and concentrate level.Crossref | GoogleScholarGoogle Scholar |

INRA (2007) ‘Alimentation des bovins, ovins et caprins: Besoins des animaux – Valeurs des aliments.’ (French National Institute for Agricultural Research: Versailles, France)

SAS Institute (1999). ‘User’s guide: statistics.’ (SAS Institute: Cary, NC)

’t Mannetje L (2000) Measuring biomass of grassland vegetation. In ‘Field an laboratory methods for grassland and animal production research’. (Eds L’t Mannetje, RM Jones) pp. 151–177. (CABI Publishing/CAB International: Wallinford, UK)

Mayes RW, Lamb CS, Colgrove PM (1986) The use of dosed an herbage n-alkanes as markers for determination of herbage intake. The Journal of Agricultural Science 107, 161–170.
The use of dosed an herbage n-alkanes as markers for determination of herbage intake.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL28XlsFajs7k%3D&md5=c91d0867419111543357044dcf49402aCAS |

Mayne CS (1991) Effects of supplementation on the performance of both growing and lactating cattle at pasture. In ‘Management issues for the grassland farmer in the 1990s’. (Ed. CS Mayne) pp. 55–71. Occasional symposium no 25. (British Grassland Society: Berkshire, UK)

Mertens DR (2002) Gravimetric determination of amylase-treated neutral detergent fibre in feeds with refluxing beakers or crucibles: a collaborative study. Journal of AOAC 85, 1217–1240.

Moate PJ, Rogers GL, Robinson IB (1984) Effect of level of silage supplement and pasture allowance on pasture intake, milk yield and milk composition of grazing cows. Proceedings of the Australian Society of Animal Production 15, 722

Pérez-Prieto LA, Delagarde R (2012) Meta-analysis of the effect of pregrazing pasture mass on pasture intake, milk production, and grazing behaviour of dairy cows strip-grazing temperate gresslands. Journal of Dairy Science 95, 5317–5330.
Meta-analysis of the effect of pregrazing pasture mass on pasture intake, milk production, and grazing behaviour of dairy cows strip-grazing temperate gresslands.Crossref | GoogleScholarGoogle Scholar | 22916937PubMed |

Pérez-Prieto LA, Delagarde R (2013) Meta-analysis of the effect of pasture allowance on the pasture intake, milk production, and grazing behavior of dairy cows grazing temperate grasslands. Journal of Dairy Science 96, 6671–6689.
Meta-analysis of the effect of pasture allowance on the pasture intake, milk production, and grazing behavior of dairy cows grazing temperate grasslands.Crossref | GoogleScholarGoogle Scholar | 23958002PubMed |

Pérez-Prieto LA, Peyraud JL, Delagarde R (2011) Substitution rate and milk yield response to corn silage supplementation of late-lactation dairy cows grazing low-mass pastures at 2 daily allowances in autumn. Journal of Dairy Science 94, 3592–3604.
Substitution rate and milk yield response to corn silage supplementation of late-lactation dairy cows grazing low-mass pastures at 2 daily allowances in autumn.Crossref | GoogleScholarGoogle Scholar | 21700047PubMed |

Pérez-Prieto LA, Peyraud JL, Delagarde R (2013) Does pre-grazing herbage mass really affect herbage intake and milk production of strip-grazing dairy cows? Grass and Forage Science 68, 93–109.
Does pre-grazing herbage mass really affect herbage intake and milk production of strip-grazing dairy cows?Crossref | GoogleScholarGoogle Scholar |

Pérez-Ramírez E, Peyraud JL, Delagarde R (2012) N-alkenes v. ytterbium/faecal index as two methods for estimating herbage intake of dairy cows fed on diets differing in the herbage: maize silage ratio and feeding level. Animal 6, 232–244.
N-alkenes v. ytterbium/faecal index as two methods for estimating herbage intake of dairy cows fed on diets differing in the herbage: maize silage ratio and feeding level.Crossref | GoogleScholarGoogle Scholar | 22436181PubMed |

Phillips CJC (1988) The use of conserved forage as a supplement for grazing dairy cows. Grass and Forage Science 43, 215–230.
The use of conserved forage as a supplement for grazing dairy cows.Crossref | GoogleScholarGoogle Scholar |

Phillips CJC, Leaver JD (1985) Supplementary feeding of forage to grazing dairy cows. 2. Offering grass silage in early and late season. Grass and Forage Science 40, 193–199.
Supplementary feeding of forage to grazing dairy cows. 2. Offering grass silage in early and late season.Crossref | GoogleScholarGoogle Scholar |

Ribeiro-Filho HMN, Heydt MS, Baade EAS, Neto AT (2009) Consumo de forragem e produção de leite de vacas em pastagem de azevém-annual com duas ofertas de forragem. Revista Brasileira de Zootecnia 38, 2038–2044.
Consumo de forragem e produção de leite de vacas em pastagem de azevém-annual com duas ofertas de forragem.Crossref | GoogleScholarGoogle Scholar |

Ribeiro-Filho HMN, Setelich EA, Crestani S, Dias KM, Mantovani C, Valenti J (2011) Relationship between diurnal grazing time and herbage intake in dairy cows in rotational grazing. Ciência Rural 41, 2010–2013.
Relationship between diurnal grazing time and herbage intake in dairy cows in rotational grazing.Crossref | GoogleScholarGoogle Scholar |

Stockdale CR (1994) Persian clover and maize silage. I. Silage as a supplement for lactating dairy cows offered herbage of different quality. Australian Journal of Agricultural Research 45, 1751–1765.
Persian clover and maize silage. I. Silage as a supplement for lactating dairy cows offered herbage of different quality.Crossref | GoogleScholarGoogle Scholar |

Stockdale CR (1997) Supplements improve the production of dairy cows grazing either white clover or paspalum-dominant pastures in late lactation. Australian Journal of Experimental Agriculture 37, 295–302.
Supplements improve the production of dairy cows grazing either white clover or paspalum-dominant pastures in late lactation.Crossref | GoogleScholarGoogle Scholar |

Stockdale CR, Dellow DW (1995) The productivity of lactating dairy cows grazing white clover and supplemented with maize silage. Australian Journal of Agricultural Research 46, 1205–1217.
The productivity of lactating dairy cows grazing white clover and supplemented with maize silage.Crossref | GoogleScholarGoogle Scholar |

Wales WJ, Doyle PT, Stockdale CR, Dellow DW (1999) Effects of variations in herbage mass, allowance, and level of supplement on nutrient intake and milk production of dairy cows in spring and summer. Australian Journal of Experimental Agriculture 39, 119–130.
Effects of variations in herbage mass, allowance, and level of supplement on nutrient intake and milk production of dairy cows in spring and summer.Crossref | GoogleScholarGoogle Scholar |

Wales WJ, Stockdale CR, Doyle PT (2005) Plant and sward characteristics to achieve high intake in ruminants. In ‘Utilization of grazed grass in temperate animal systems’. pp. 37–47.

Woodward SL, Chaves AV, Waghorn GC, Brookes IM, Burke JL (2006) Supplementing fresh pastures with maize, lotus, sulla and pasture silages for dairy cows in summer. Journal of the Science of Food and Agriculture 86, 1263–1270.
Supplementing fresh pastures with maize, lotus, sulla and pasture silages for dairy cows in summer.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XmtFSmtLc%3D&md5=9e3edc481038173515a6ea3a9b59e3e1CAS |