Postpartum Anestrus and its Management in Dairy Cattle

Ambrose, D.J.

doi:10.1002/9781118833971.ch52

Cited by 5 publications

(4 citation statements)

References 90 publications

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“…Uterine infections during the postpartum period affect ovarian follicular development and function and eventually delay ovulation in cattle (Dourey et al 2011;Ambrose 2015). Inflammatory responses induced by bacteria during the early postpartum period cause perturbation of hypothalamic, pituitary and ovarian function, which, in turn, may contribute to impaired fertility of cows affected with uterine infection ).…”

Section: Introductionmentioning

confidence: 99%

Effects of prepartum oilseed supplements on subclinical endometritis, pro- and anti-inflammatory cytokine transcripts in endometrial cells and postpartum ovarian function in dairy cows

Salehi

Colazo

Gobikrushanth

et al. 2017

Reprod. Fertil. Dev.

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Abstract. Postpartum uterine infections affect ovarian function and delay ovulation in cattle. As dietary fats can affect immune cell function, we investigated the influence of prepartum diets on postpartum uterine inflammatory status (UIS) as assessed 25 AE 1 days postpartum by endometrial cytology (normal: #8% polymorphonuclear cells (PMN) vs subclinical endometritis (SCE): .8% PMN) and associations between SCE, pro-and anti-inflammatory cytokine gene expression and ovarian function. During the last 5 weeks of gestation, dairy cows received a diet supplemented with 8% rolled sunflower (n ¼ 10) or canola seed (n ¼ 9) or no oilseed (n ¼ 9). Ovaries were scanned until 35 days postpartum. Prepartum diets did not influence SCE, but a preovulatory-size follicle developed sooner (P # 0.05), the interval to first ovulation was shorter and the proportion of cows ovulating within 35 days postpartum was greater in the sunflower seed group. Although mRNA expression of cytokines was not affected by diet, cows with SCE had higher (P # 0.05) expression of interleukin-1b (IL1B), interleukin-8 (CXCL8), IL10 and tumour necrosis factor-a (TNF) than normal cows. The interval (mean AE s.e.m.) from calving to preovulatory-size follicle was shorter (P # 0.05) in normal (13.2 AE 0.9 days) than SCE cows (18.7 AE 1.4 days). In summary, a prepartum diet supplemented with sunflower seed positively influenced postpartum ovarian function without affecting UIS or pro-and anti-inflammatory cytokine gene expression in endometrial cells.

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Section: Introductionmentioning

confidence: 99%

Effects of prepartum oilseed supplements on subclinical endometritis, pro- and anti-inflammatory cytokine transcripts in endometrial cells and postpartum ovarian function in dairy cows

Salehi

Colazo

Gobikrushanth

et al. 2017

Reprod. Fertil. Dev.

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“…Over the past 25 years, GnRH-based products have been used as a “holding injection” on the day of AI to enhance the proportion of successful pregnancy, particularly in “repeat breeder” cows [ 4 ]. Repeat breeding is commonly characterized as a syndrome with various potential etiologies, including genetic or acquired defects in ova, sperm, or embryos during the initial developmental stages, infections or inflammatory processes, endocrine dysfunctions, nutritional or management deficits, and other factors associated with early embryonic loss or spontaneous abortion [ 42 , 43 ]. Females exhibiting repeated behavioral estrus, with a third or more unsuccessful service, are categorized as “repeat breeders” [ 2 ].…”

Section: Prevention Of Pregnancy Losses By Gnrh Treatmentmentioning

confidence: 99%

Gonadotropin-Releasing Hormone (GnRH) and Its Agonists in Bovine Reproduction II: Diverse Applications during Insemination, Post-Insemination, Pregnancy, and Postpartum Periods

Hassanein,

Szelényi,

Szenci

2024

Animals

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The administration of GnRH and its agonists benefits various aspects of bovine reproductive programs, encompassing physiological stages such as estrous synchronization, post-insemination, pregnancy, and the postpartum period. The positive impact of GnRH administration in overcoming challenges like repeat breeder cows, early embryonic loss prevention, and the management of cystic ovarian disease (COD) is thoroughly surveyed. Furthermore, this review focuses on the significance of GnRH administration during the postpartum period, its role in ovulation induction, and how it enhances the productivity of embryo transfer (ET) programs. An emerging feature of this field is introduced, focusing on nano-drug delivery systems for GnRH agonists, and the potential benefits that may arise from such advancements are highlighted. While this review offers valuable insights into various applications of GnRH in bovine reproduction, it emphasizes the crucial need for further research and development in this field to advance reproductive efficiency and health management in dairy cattle.

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“…The PPAP refers to a condition where cows have not been observed or reported in estrus for several weeks after calving, often to the end of the voluntary (elective) waiting period in dairy cattle which is the time from calving to the subsequent estrus and conception. 815 To maintain a 365-day calving interval, cows need to conceive on average by 83 days (60 to 90 days) after calving with gestation length 282 days when the uterus undergoes involution and preparation for the next pregnancy. Comparatively short average PPAP have been reported in Munishigonj variety (70.26 days; single report) and Red Chittagong (89.51days; 11 reports) cows than other genotypes of cattle with especially highest PPAP in JS  Local crossbred (291.61 days) cows (Table 28a-d).…”

Section: Post-partum Anestrus Period (Ppap)mentioning

confidence: 99%

“…The causes of the post-partum anestrus in cattle are often multifactorial but can be broadly categorized into physiological, nutritional, managerial, environmental and pathological whereas suckling and nutrition (negative energy balance) are considered the most important. 815,816…”

Section: Post-partum Anestrus Period (Ppap)mentioning

confidence: 99%

A Six-Decade Review: Research on Cattle Production, Management and Dairy Products in Bangladesh

Samad¹

2020

JVMOHR

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Background: Historical changes in the demand of animal protein sources (milk & meat) for human consumption have been largely increased due to increased growth of human population, income and urbanization in Bangladesh. Research on cattle production and management especially cattle breeding, feeds and fodders, milk production and products have contributed to increase potential production and genetic gains of cattle. A comprehensive review on the published inland research reports on cattle production, management and dairy products are lacking in literature which is required for further research for the cattle development and production. Objectives: An attempt to review on the published inland research reports on the advances in science and technology on cattle production, management and dairy products in Bangladesh Materials and Methods: A systematic literature review of research articles on cattle production, management and dairy products published between 1962 and 2020 from Bangladesh has been reviewed. A total of 1185 research articles on cattle production, management and dairy products supported with some international related articles have been reviewed and analyzed. Results: Research data on cattle production, management and dairy products are compiled from 1185 different research reports supported with some international reports. This review covers the status of cattle breeds and varieties with tabulated summary of 21 reports on draught cattle, 83 on fodder production, 97 on nutrition, feeds and feeding, 88 on trials of different feed formulations in non-dairy cattle and 68 on dairy cattle, 5 on the effects of heat stress on health and production, 39 on fattening of cattle, 27 on genetics and breeding, 75 on semen and AI, 20 on factors associated with conception rate (CR), 8 on oocyte and embryo collection, 9 on genotypes of dairy cows, 7 on management of smallholder dairy farms, 48 on milk production status of dairy cattle, 32 on economics of rearing cattle, 99 on productive and reproductive performances of cattle, 7 on estrus and pregnancy diagnosis, 7 problems of dairy farmers, 23 on preservative and adulteration of milk, 20 on constituents and methods of sweet preparation, 11 on cheese preparation, 9 on ice-cream, 56 on yoghurt, 4 on beef cattle production, 34 on birth weight, and 15 on calf rearing including calf milk replacer and calf starter. Conclusions: Data based reports are important for priority setting and targeting with mandate for cattle development and increase production. Currently, one of the biggest gaps in the inland datasets on cattle research and this review addresses this gap by bringing together in a review and highlighting some of the major findings. Cross-breeding remains an attractive option for cattle improvement because of the quick results that can be obtained by its use and the potential benefits it has farmers. This review would serve as an archive of research reports on cattle production, management and dairy products for the concerned academicians, research scientists, organizations and government for future planning for education, research and extension on cattle production. Keywords: Systematic review, Six decades, Cattle, Management, Production, Dairy products, Bangladesh

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Postpartum Anestrus and its Management in Dairy Cattle

Cited by 5 publications

References 90 publications

Effects of prepartum oilseed supplements on subclinical endometritis, pro- and anti-inflammatory cytokine transcripts in endometrial cells and postpartum ovarian function in dairy cows

Effects of prepartum oilseed supplements on subclinical endometritis, pro- and anti-inflammatory cytokine transcripts in endometrial cells and postpartum ovarian function in dairy cows

Gonadotropin-Releasing Hormone (GnRH) and Its Agonists in Bovine Reproduction II: Diverse Applications during Insemination, Post-Insemination, Pregnancy, and Postpartum Periods

A Six-Decade Review: Research on Cattle Production, Management and Dairy Products in Bangladesh

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