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View article: Facilities and housing, husbandry, and health management practices on Quebec dairy farms: A retrospective descriptive study
Facilities and housing, husbandry, and health management practices on Quebec dairy farms: A retrospective descriptive study Open
The objective of this retrospective descriptive study was to characterize housing and herd management practices of Quebec dairy farms. Pre-existent survey data (housing, husbandry, and herd health; 36 questions) collected in person by Lact…
View article: Associations of transition cow metabolism with subsequent manifestation and intensity of estrous behavior in cyclic cows
Associations of transition cow metabolism with subsequent manifestation and intensity of estrous behavior in cyclic cows Open
This retrospective cohort study investigated the associations between transition cow metabolism and estrous behavior in 226 cyclic Holstein cows. Body weight, feed intake, and milk yield were monitored to calculate energy balance. Blood sa…
View article: Associations of serum fatty acids, serum urea nitrogen, and ruminal ammonia nitrogen with residual feed intake in lactating dairy cows
Associations of serum fatty acids, serum urea nitrogen, and ruminal ammonia nitrogen with residual feed intake in lactating dairy cows Open
Feed efficiency is critical in dairy farming, affecting production costs and environmental sustainability. The development of the trait residual feed intake (RFI) has provided an opportunity to select dairy cows that are more efficient in …
View article: Revealing host genome–microbiome networks underlying feed efficiency in dairy cows
Revealing host genome–microbiome networks underlying feed efficiency in dairy cows Open
Ruminants have the ability to digest human-inedible plant materials, due to the symbiotic relationship with the rumen microbiota. Rumen microbes supply short chain fatty acids, amino acids, and vitamins to dairy cows that are used for main…
View article: Magnitude of change in prepartum feed intake: Estimations using multiple classes of predictors and associations with transition metabolism, health, and milk production
Magnitude of change in prepartum feed intake: Estimations using multiple classes of predictors and associations with transition metabolism, health, and milk production Open
The objectives of this study were to identify factors associated with the relative change in prepartum DMI (RCDMI) of 273 cows fed individually, evaluate the performance of linear models to estimate RCDMI using different classes of predict…
View article: Estimations of prepartum feed intake and its effects on transition metabolism and subsequent milk production
Estimations of prepartum feed intake and its effects on transition metabolism and subsequent milk production Open
The objectives of this study were to identify factors associated with prepartum DMI, evaluate the performance of linear models to estimate prepartum DMI using different classes of predictors, and investigate the consequences of different l…
View article: Investigating relationships between the host genome, rumen microbiome, and dairy cow feed efficiency using mediation analysis with structural equation modeling
Investigating relationships between the host genome, rumen microbiome, and dairy cow feed efficiency using mediation analysis with structural equation modeling Open
The rumen microbiome is crucial for converting feed into absorbable nutrients used for milk synthesis, and the efficiency of this process directly affects the profitability and sustainability of the dairy industry. Recent studies have foun…
View article: Use of rumination time in health risk assessment of prepartum dairy cows
Use of rumination time in health risk assessment of prepartum dairy cows Open
The objectives of this observational cohort study were to evaluate the associations of rumination time (RT) in the last week of pregnancy with transition cow metabolism, inflammation, health, and subsequent milk production, reproduction, a…
View article: Endometrial responsiveness to interferon-tau and its association with subsequent reproductive performance in dairy heifers
Endometrial responsiveness to interferon-tau and its association with subsequent reproductive performance in dairy heifers Open
Our objectives were to evaluate the endometrial responsiveness of dairy heifers to an intrauterine infusion of recombinant bovine interferon-tau (rbIFN-τ) and to associate endometrial responses to rbIFN-τ with subsequent reproductive perfo…
View article: An artificial intelligence approach of feature engineering and ensemble methods depicts the rumen microbiome contribution to feed efficiency in dairy cows
An artificial intelligence approach of feature engineering and ensemble methods depicts the rumen microbiome contribution to feed efficiency in dairy cows Open
Genetic selection has remarkably helped U.S. dairy farms to decrease their carbon footprint by more than doubling milk production per cow over time. Despite the environmental and economic benefits of improved feed and milk production effic…
View article: Host and rumen microbiome contributions to feed efficiency traits in Holstein cows
Host and rumen microbiome contributions to feed efficiency traits in Holstein cows Open
It is now widely accepted that dairy cow performance is influenced by both the host genome and rumen microbiome composition. The contributions of the genome and the microbiome to the phenotypes of interest are quantified by heritability (h…
View article: Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows
Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows Open
Our objectives were to evaluate the effects of complete replacement of inorganic salts of trace minerals (STM) with organic trace minerals (OTM) in both pre- and postpartum diets on ovarian dynamics, estrous behavior measured by sensors, p…
View article: Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows
Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows Open
Supplementary tables of the article entitled 'Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows' published in 2023 in the Journal of Dairy Sciences. https:/…
View article: Effects of replacing inorganic salts of trace minerals with organic trace minerals in the diet of prepartum cows on quality of colostrum and immunity of newborn calves
Effects of replacing inorganic salts of trace minerals with organic trace minerals in the diet of prepartum cows on quality of colostrum and immunity of newborn calves Open
Our objectives were to evaluate the impact of supplementary trace mineral (TM) form-inorganic salts (STM; Co, Cu, Mn, Zn sulfates, and Na selenite) or organic (OTM; Co, Cu, Mn, Zn proteinates, and selenized yeast)-in the prepartum diet on …
View article: Neutrophil function and antibody production during the transition period: Effect of form of supplementary trace minerals and associations with postpartum clinical disease and blood metabolites
Neutrophil function and antibody production during the transition period: Effect of form of supplementary trace minerals and associations with postpartum clinical disease and blood metabolites Open
Our objectives were to evaluate the effect of the form of supplementary trace minerals-inorganic salts (STM: Co, Cu, Mn, and Zn sulfates and Na selenite) or organic (OTM: Co, Cu, Mn, Zn proteinates, and selenized yeast)-fed at 100% of reco…
View article: Effects of replacing inorganic salts of trace minerals with organic trace minerals in pre- and postpartum diets on feeding behavior, rumen fermentation, and performance of dairy cows
Effects of replacing inorganic salts of trace minerals with organic trace minerals in pre- and postpartum diets on feeding behavior, rumen fermentation, and performance of dairy cows Open
Our objectives were to evaluate the effects of complete replacement of supplementary inorganic salts of trace minerals (STM) by organic trace minerals (OTM) in both pre- and postpartum diets on feeding behavior, ruminal fermentation, rumin…
View article: Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows
Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows Open
This study evaluated the effects of treatment with meloxicam (a non-steroidal anti-inflammatory drug), parity, and blood progesterone concentration on the dynamics of the uterine microbiota of 16 clinically healthy postpartum dairy cows. S…
View article: Dynamics of lipid droplets in the endometrium and fatty acids and oxylipins in the uterine lumen, blood, and milk of lactating cows during diestrus
Dynamics of lipid droplets in the endometrium and fatty acids and oxylipins in the uterine lumen, blood, and milk of lactating cows during diestrus Open
Our objective was to investigate the lipid content of uterus, blood plasma, and milk at early, mid, and late diestrus. Lactating cows (n = 30) had the estrous cycle and ovulation synchronized by administration of exogenous hormones. Cows w…
View article: Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows
Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows Open
This study evaluated the effects of treatment with meloxicam (a non-steroidal anti-inflammatory drug), parity, and blood progesterone concentration on the dynamics of the uterine microbiome of clinically healthy postpartum dairy cows. Seve…
View article: Effect of anti-inflammatory treatment on systemic inflammation, immune function, and endometrial health in postpartum dairy cows
Effect of anti-inflammatory treatment on systemic inflammation, immune function, and endometrial health in postpartum dairy cows Open
Systemic inflammation (SI) is increasingly studied in several species because it may be central in many metabolic disturbances and be a risk factor for clinical disease. This proof-of-concept study evaluated the effects of the anti-inflamm…
View article: Early embryonic development of bovine oocytes challenged with LPS in vitro or in vivo
Early embryonic development of bovine oocytes challenged with LPS in vitro or in vivo Open
The aim of this study was to evaluate the effect of exposing bovine oocytes to lipopolysaccharides (LPS) in vivo and in vitro on early embryo development. In experiment 1, cumulus oocyte complexes (COCs, n = 700/group) were challenged with…
View article: J-Synch protocol associated with estrus detection in beef heifers and non-lactating cows
J-Synch protocol associated with estrus detection in beef heifers and non-lactating cows Open
The aim of this study was to compare the J-Synch and conventional protocols associated with estrus detection in beef heifers and to compare pregnancy rate between non-lactating cows displaying estrus or not during the J-Synch protocol. In …
View article: Effect of recombinant bovine somatotropin (rbST) treatment on follicular population and development in non-lactating dairy cows
Effect of recombinant bovine somatotropin (rbST) treatment on follicular population and development in non-lactating dairy cows Open
The aim of this study was to evaluate the long-term effects of recombinant bovine somatotropin (rbST) on follicle population and ovulatory follicle development in non-lactating dairy cows. Twenty-one Jersey cows were allocated in rbST (n=1…
View article: Seroprevalence estimate and associated risk factors for neosporosis in dairy cattle in the northwest region of Rio Grande do Sul State, Brazil
Seroprevalence estimate and associated risk factors for neosporosis in dairy cattle in the northwest region of Rio Grande do Sul State, Brazil Open
The aim of this study was to estimate neosporosis seroprevalence and its associated risk factors in milk herds (Bos taurus taurus) located in the northwestern region of Rio Grande do Sul State, Brazil. Three hundred twenty-two blood sample…
View article: Supplementation of in vitro maturation medium with serum from dairy cows at early and late lactation in the in vitro production of bovine embryos
Supplementation of in vitro maturation medium with serum from dairy cows at early and late lactation in the in vitro production of bovine embryos Open
The transition period of dairy cows is characterized by several metabolic alterations, due to the negative energy balance, which negatively affects fertility. The aim of this study was to evaluate the effect of supplementing the in vitro m…
View article: Seroprevalence estimate and associated risk factors for neosporosis in dairy cattle in the northwest region of Rio Grande do Sul State, Brazil
Seroprevalence estimate and associated risk factors for neosporosis in dairy cattle in the northwest region of Rio Grande do Sul State, Brazil Open
The aim of this study was to estimate neosporosis seroprevalence and its associated risk factors in milk herds (Bos taurus taurus) located in the northwestern region of Rio Grande do Sul State, Brazil. Three hundred twenty-two blood sample…
View article: Exogenous paraoxonase‐1 during oocyte maturation improves bovine embryo development in vitro
Exogenous paraoxonase‐1 during oocyte maturation improves bovine embryo development in vitro Open
Contents Paraoxonase‐1 ( PON 1) is an enzyme found in serum and follicular fluid that protects cell membrane and circulating lipids against oxidative damage. The aims of this study were to measure the direct effects of recombinant PON 1 ( …