Modelling responses to nutritional, endocrine and genetic strategies to increase fertility in the UK dairy herd

被引：12

作者：

Maas, James A. ^{[1
]}

Garnsworthy, Philip C. ^{[1
]}

Flint, Anthony P. F. ^{[1
]}

机构：

[1] Univ Nottingham, Sch Biosci, Loughborough LE12 5RD, Leics, England

来源：

VETERINARY JOURNAL | 2009年 / 180卷 / 03期

关键词：

Fertility; Calving interval; Sustainability; IMPACT;

D O I：

10.1016/j.tvjl.2008.02.003

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

The United Kingdom, as in most countries using intensive dairy management programmes, is facing serious challenges in terms of dairy cow fertility, as highlighted by a rapidly increasing calving interval (CI). A mechanistic, mathematical model is described that predicts the size of the future national dairy herd required to supply domestic requirements and its inherent sustainability in terms of production of replacement female numbers. The results from the model suggest that continuing! use of current management strategies may result in the national dairy herd being unsustainable due to increasing CI and reduced fertility in as few as 10 years. Adoption of nutritional, endocrine and genetic techniques that increase fertility can effectively and rapidly reverse this trend and reduce the required size of the national herd, thereby reducing methane emissions from dairy production. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：356 / 362

页数：7

共 13 条

[1]

*DEP FOOD ENV RUR, 2007, NAT STAT MILK STAT

[2] Impact of dietary fatty acids on oocyte quality and development in lactating dairy cows [J].

Fouladi-Nashta, Ali A. ;

Gutierrez, Carlos G. ;

Gong, Jin G. ;

Garnsworthy, Philip C. ;

Webb, Robert .

BIOLOGY OF REPRODUCTION, 2007, 77 (01) :9-17

[3]

Garnsworthy P. C., 2005, Calf and heifer rearing: principles of rearing the modern dairy heifer from calf to calving. 60th University of Nottingham Easter School in Agricultural Science, Nottingham, UK. 23rd- 24th March, 2004, P1

[4]

Garnsworthy P. C., 2005, Yields of farmed species: constraints and opportunities in the 21st century. Proceedings of a University of Nottingham Easter School Series, June 2004, Sutton Bonington, UK, P435

[5] The environmental impact of fertility in dairy cows: a modelling approach to predict methane and ammonia emissions [J].

Garnsworthy, PC .

ANIMAL FEED SCIENCE AND TECHNOLOGY, 2004, 112 (1-4) :211-223

[6] Effect of dietary-induced increases in circulating insulin concentrations during the early postpartum period on reproductive function in dairy cows [J].

Gong, JG ;

Lee, WJ ;

Garnsworthy, PC ;

Webb, R .

REPRODUCTION, 2002, 123 (03) :419-427

[7]

HANKS J, 2007, UK VET, V12, P1

[8] Associations between genetic merit for milk production and animal parameters and the fertility performance of dairy cows [J].

Mackey, D. R. ;

Gordon, A. W. ;

McCoy, M. A. ;

Verner, M. ;

Mayne, C. S. .

ANIMAL, 2007, 1 (01) :29-43

[9] The genetic relationship between calving interval, body condition score and linear type and management traits in registered Holsteins [J].

Pryce, JE ;

Coffey, MP ;

Brotherstone, S .

JOURNAL OF DAIRY SCIENCE, 2000, 83 (11) :2664-2671

[10] Strategies for reversing the trend towards subfertility in dairy cattle [J].

Royal, M ;

Mann, GE ;

Flint, APF .

VETERINARY JOURNAL, 2000, 160 (01) :53-60

← 1 2 →