A four-year comparison of two organic dairy systems

Richard F. Weller

Abstract

Two organic systems were studied, the first based on self-sufficiency (SS) and the feeding of high-forage diets, and the second on purchased concentrates (PC) and maximising milk output. The growing of both concentrate and forage feeds in the SS system reduced the stocking density. Feeding high-forage diets increased the proportion of milk produced from forage but decreased the energy concentration of the ration, leading to lower milk persistency, reduced milk protein in early lactation and reduced pregnancy rates. In the PC system importing feed increased the stocking density but also increased the ‘farm-gate’ nutrient surpluses.

Original language	English
Pages	30-31
Number of pages	2
Publication status	Published - 2006
Event	Joint European Organic Congress - Odense, Denmark Duration: 30 May 2006 → 31 May 2006

Conference

Conference	Joint European Organic Congress
Country/Territory	Denmark
City	Odense
Period	30 May 2006 → 31 May 2006

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title = "A four-year comparison of two organic dairy systems",

abstract = "Two organic systems were studied, the first based on self-sufficiency (SS) and the feeding of high-forage diets, and the second on purchased concentrates (PC) and maximising milk output. The growing of both concentrate and forage feeds in the SS system reduced the stocking density. Feeding high-forage diets increased the proportion of milk produced from forage but decreased the energy concentration of the ration, leading to lower milk persistency, reduced milk protein in early lactation and reduced pregnancy rates. In the PC system importing feed increased the stocking density but also increased the {\textquoteleft}farm-gate{\textquoteright} nutrient surpluses.",

author = "Weller, {Richard F.}",

note = "A four-year comparison of two organic dairy systems. Joint Organic Congress - Organic Farming and European Rural Development, Odense, Denmark, 30-31 May 2006, Sponsorship: DEFRA; Joint European Organic Congress ; Conference date: 30-05-2006 Through 31-05-2006",

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N2 - Two organic systems were studied, the first based on self-sufficiency (SS) and the feeding of high-forage diets, and the second on purchased concentrates (PC) and maximising milk output. The growing of both concentrate and forage feeds in the SS system reduced the stocking density. Feeding high-forage diets increased the proportion of milk produced from forage but decreased the energy concentration of the ration, leading to lower milk persistency, reduced milk protein in early lactation and reduced pregnancy rates. In the PC system importing feed increased the stocking density but also increased the ‘farm-gate’ nutrient surpluses.

AB - Two organic systems were studied, the first based on self-sufficiency (SS) and the feeding of high-forage diets, and the second on purchased concentrates (PC) and maximising milk output. The growing of both concentrate and forage feeds in the SS system reduced the stocking density. Feeding high-forage diets increased the proportion of milk produced from forage but decreased the energy concentration of the ration, leading to lower milk persistency, reduced milk protein in early lactation and reduced pregnancy rates. In the PC system importing feed increased the stocking density but also increased the ‘farm-gate’ nutrient surpluses.

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