Dietary manipulation of Bos indicus × heifers during gestation affects the reproductive development of their heifer calves

Sullivan, T.M.; Micke, G.C.; Greer, Ristan M.; Irving-Rodgers, Helen F.; Rodgers, Raymond J.; Perry, V.E.A.

doi:10.1071/rd09004

Cited by 57 publications

(49 citation statements)

References 46 publications

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“…Similar to sheep, prenatal maternal nutrition did not affect the onset of puberty in beef cattle (Martin et al 2007;Sullivan et al 2009;Mossa et al 2013), but higher offspring pregnancy rates were observed following protein supplementation in late pregnancy (Martin et al 2007) and when the AFC before breeding was high (Cushman et al 2009). In contrast, manipulation of the post-weaning diet in beef heifers did not affect AFC or overall pregnancy rate (Eborn et al 2013).…”

Section: Female Offspring: Cattlementioning

confidence: 88%

“…Thus, birthweight (as a proxy for fetal nutrient supply) was positively associated with the antral follicle count (AFC) in a large population of neonatal beef calves that died due to dystocia, and in adult heifers examined by ultrasound (Cushman et al 2009). Reduced ovarian weight and large follicle diameter at 30 months is reported following slow prenatal growth rates (Wilkins et al 2006), whereas a general reduction in all follicle types was evident following exposure to a low-then highprotein diet during the first two-thirds of gestation (Sullivan et al 2009). A direct effect of maternal undernutrition during the first third of gestation on the ovarian follicle reserve has been documented using serial ultrasound (five occasions) during prepubertal and adult life (Mossa et al 2013).…”

Section: Female Offspring: Cattlementioning

confidence: 99%

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Epigenetics and developmental programming of welfare and production traits in farm animals

Sinclair

Rutherford

Wallace

et al. 2016

Reprod. Fertil. Dev.

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Abstract. The concept that postnatal health and development can be influenced by events that occur in utero originated from epidemiological studies in humans supported by numerous mechanistic (including epigenetic) studies in a variety of model species. Referred to as the 'developmental origins of health and disease' or 'DOHaD' hypothesis, the primary focus of large-animal studies until quite recently had been biomedical. Attention has since turned towards traits of commercial importance in farm animals. Herein we review the evidence that prenatal risk factors, including suboptimal parental nutrition, gestational stress, exposure to environmental chemicals and advanced breeding technologies, can determine traits such as postnatal growth, feed efficiency, milk yield, carcass composition, animal welfare and reproductive potential. We consider the role of epigenetic and cytoplasmic mechanisms of inheritance, and discuss implications for livestock production and future research endeavours. We conclude that although the concept is proven for several traits, issues relating to effect size, and hence commercial importance, remain. Studies have also invariably been conducted under controlled experimental conditions, frequently assessing single risk factors, thereby limiting their translational value for livestock production. We propose concerted international research efforts that consider multiple, concurrent stressors to better represent effects of contemporary animal production systems.

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Section: Female Offspring: Cattlementioning

confidence: 88%

Section: Female Offspring: Cattlementioning

confidence: 99%

Epigenetics and developmental programming of welfare and production traits in farm animals

Sinclair

Rutherford

Wallace

et al. 2016

Reprod. Fertil. Dev.

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“…Freetly et al (2005) reported that nutrient intake could be limited for pregnant cows during the second trimester without altering the subsequent reproductive performance of the cows. However, maternal nutrient status during pregnancy may also affect the lifetime productivity of the female offspring, because there is evidence that both nutrient restriction and nutrient excess during pregnancy may negatively impact the ovarian reserve of the subsequent generation (Da Silva et al, 2002Ireland et al, 2011;Sullivan et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

The impact of cow nutrient status during the second and third trimesters on age at puberty, antral follicle count, and fertility of daughters

Cushman¹,

McNeel²,

Freetly³

2014

Livestock Science

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a b s t r a c tFluctuating feed resources to beef cows across the production cycle is a proven method for decreasing input costs; however, limiting nutrients during late gestation have been demonstrated to decrease ovarian follicle numbers in female offspring in some studies. We hypothesize that limiting nutrients to mature ( Z3 yr) crossbred beef cows during the second and third trimesters would result in daughters that would have decreased follicle numbers detectable by ultrasonography as yearlings. Over four breeding seasons, pregnant beef cows (n ¼ 397) were assigned to either Low (L), Moderate (M) or High (H) nutrient intake during the second or third trimester, resulting in four dietary treatment groups (L-H, L-L, M-H, and M-M). Heifers (n ¼416) born to these cows were weighed at weaning and moved to a dry lot where they were monitored for behavioral estrus with the aid of heat detection patches. Two weeks before their first breeding season, heifers were submitted for ultrasonographic examination of their ovaries to determine antral follicle numbers. Heifers were placed with bulls for 60 d and pregnancy status was determined 45 d after the bulls were removed. Growth and reproductive traits were analyzed using the MIXED Procedure of SAS with maternal diet and year as fixed effects. Maternal dietary intake did not affect heifer growth rates, age at puberty, or antral follicle counts (PZ 0.40). However, an increased proportion of the heifers born to dams fed a high nutrient diet during the third trimester (L-H or M-H) calved in the first 21 d of their first calving season (P¼ 0.004). Antral follicle counts detectable by ultrasonography at yearling pre-breeding examination were greater in heifers that calved during the first 21 d of their first calving season (P ¼ 0.02); however, these heifers did not differ in age at puberty (P ¼ 0.60). From this study, we conclude that: (1) limiting nutrient intake during late gestation in mature ( Z3 yr) beef cows does not influence the ovarian reserve or reproductive performance of daughters; (2) increasing maternal nutrient intake during ☆ Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of names by the USDA implies no approval of the product to the exclusion of others that may also be suitable.n Corresponding author. This article is a U.S. government work, and is not subject to copyright in the United States.the third trimester can improve the first service conception rates of daughters; and (3) pre-breeding ultrasonography to determine antral follicle counts is a good indicator of fertility for choosing replacement heifers. Published by Elsevier B.V.

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“…In most cases, resulting progeny of undernourished animals have reduced birth weight and often express poor postnatal growth rates (Greenwood et al 2000, Ford et al 2007, increased morbidity (Garite et al 2004), increased proportion of body fat in relation to lean (Greenwood et al 2000, Ford et al 2007) metabolic disorders (Fowden et al 2005, Ford et al 2007, and alterations in organ function (Da Silva et al 2002, Sullivan et al 2009, Echternkamp et al 2012.…”

Section: Developmental Programmingmentioning

confidence: 99%

Optimizing Beef Cattle Nutrition from Conception to Consumption

Gunn

2016

Ceiba

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Abstract. Feed cost and reproductive efficiency are the 1 st and 2 nd largest factors, respectively, that dictate profitability of the cow-calf enterprise. It should not be forgotten that these two economic areas are not independent of one another, as nutritional management is the largest single factor that producers can control that influences the probability of pregnancy. Thus, without proper nutritional management, many reproductive processes are altered, and establishment and maintenance of pregnancy may be hindered or prevented entirely. Traditionally, the major concern related to the interface between nutrition and reproduction is the effect of under nutrition prior to breeding. However, recent research in the fields of fetal/developmental programming as well as post-breeding heifer management suggests nutrition can significantly impact not only reproductive capacity of the female, but long term growth and efficiency of her progeny. Therefore, developing appropriate nutritional programs for all phases of production is critical for the economic success and productivity of the beef operation for not only the current year, but for years to come.Keywords: Cow-calf, developmental programming, reproduction. Optimización de la Nutrición de Ganado de Carne de Concepción hasta ConsumoResumen. El costo del alimento y de la eficiencia reproductiva son los factores más importantes para dictar la rentabilidad de una empresa ganadera de crianza. No se debe olvidar que estas dos áreas económicas no son independientes una de otra, ya que el manejo nutricional es el factor más importante que los productores pueden controlar y que tiene influencia sobre la probabilidad de preñez. Por esto, sin un manejo apropiado de la nutrición, muchos procesos reproductivos pueden alterarse y el establecimiento y mantenimiento de la preñez puede ser afectada o completamente prevenida. Tradicionalmente, la mayor preocupación relacionada a la interfase entre nutrición y reproducción es el efecto de la subnutrición antes de la reproducción. No obstante, investigación reciente en los campos de programación fetal y de desarrollo al igual que manejo de vaquillas post-reproducción puede causar un impacto importante no solo en la capacidad reproductiva de la hembra, pero también el crecimiento a largo plazo y la eficiencia de su progenie. Por esto, el desarrollo de programas nutricionales apropiados para todas las fases de producción es crítico para el éxito económico y la productividad de la operación no solo para el año corriente, pero para los próximos años.Palabras clave: Programación del desarrollo, reproducción, ternero, vaca.

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Dietary manipulation of Bos indicus × heifers during gestation affects the reproductive development of their heifer calves

Cited by 57 publications

References 46 publications

Epigenetics and developmental programming of welfare and production traits in farm animals

Epigenetics and developmental programming of welfare and production traits in farm animals

The impact of cow nutrient status during the second and third trimesters on age at puberty, antral follicle count, and fertility of daughters

Optimizing Beef Cattle Nutrition from Conception to Consumption

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