Effects of Feeding either Red or White Grape Marc on Milk Production and Methane Emissions from Early-Lactation Dairy Cows
| Autor: | S. Richard O. Williams, Peter J. Moate, G.L. Morris, Josh L. Hixson, B.E. Ribaux, William J. Wales, Joe L. Jacobs, Murray C. Hannah, M. H. Deighton |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Methane emissions
Perennial plant Biology Lolium perenne Article 03 medical and health sciences Animal science Lactation lcsh:Zoology medicine Dry matter lcsh:QL1-991 milk production 030304 developmental biology Wine 0303 health sciences lcsh:Veterinary medicine General Veterinary sulphur hexafluoride fungi 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Milk production biology.organism_classification 040201 dairy & animal science Nine million medicine.anatomical_structure cattle lcsh:SF600-1100 Animal Science and Zoology enteric methane |
| Zdroj: | Animals : an Open Access Journal from MDPI Animals Volume 10 Issue 6 Animals, Vol 10, Iss 976, p 976 (2020) |
| ISSN: | 2076-2615 |
| Popis: | Simple Summary Grape marc comprises the skins, seeds and stems of grapes remaining after grapes are pressed to make wine. Globally, about nine million tonnes of grape marc are produced annually. However, little is known about the comparative nutritional value of grape marc from red and white grapes and their effects on milk production and methane emissions when fed to dairy cows. Our experiment assessed the potential role of grape marc as a feed source for the grazing based, Australian dairy industry. We fed diets based on harvested perennial ryegrass to lactating dairy cows and compared milk production and methane emissions when grape marc from either red or white grapes was substituted for some of the perennial ryegrass. Diets containing grape marc from either red or white grapes equally decreased milk yields by approximately 10% and methane emissions by 15%. When fed to dairy cows, grape marc reduces methane emissions but at the cost of decreased milk production. The effects on methane emissions were mainly mediated by the high concentrations of lignin and fat in grape marc while decreased milk production was due to decreased intake of metabolizable energy. Abstract Globally, annual production of grape marc (GM), the residue of skins, seeds and stems remaining after making wine, has been estimated to be approximately nine million tonnes. No previous studies have compared effects on milk production and methane emissions when GM from either red or white grapes was fed to dairy cows. This experiment examines the effects of partial replacement of a perennial ryegrass (Lolium perenne L.) based diet with GM from either red or white grapes on yield and composition of milk and methane emissions. Thirty-two Holstein dairy cows in early lactation were offered either a control diet containing 15.0 kg dry matter (DM) of freshly harvested perennial ryegrass and 5.2 kg of a concentrate mix, or a diet similar to the control diet but with 5 kg DM of ryegrass replaced with 5 kg DM of GM from red grapes (RGM), or a diet similar to the RGM diet except the GM was from white grapes (WGM). Individual cow feed intakes, milk yields, and methane emissions were measured. Both diets containing GM decreased milk yields by approximately 10% and methane emissions by 15%. When fed to dairy cows, GM reduces methane emissions but at the cost of decreased milk production. |
| Databáze: | OpenAIRE |
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