Juliana Ranches

Juliana Ranches
Oregon State University | OSU · Eastern Oregon Agricultural Research Center

PhD

About

81
Publications
4,511
Reads
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481
Citations
Education
July 2016 - December 2019
University of Florida
Field of study
  • Animal Sciences
January 2014 - July 2016
University of Florida
Field of study
  • Animal Sciences
January 2009 - December 2013
São Paulo State University
Field of study
  • Animal Science

Publications

Publications (81)
Article
Full-text available
This experiment evaluated the effects of bovine appeasing substance (BAS) administration at feedlot entry on growth, temperament, inflammation, response to vaccination, behavior, carcass characteristics, and meat quality of beef heifers. Thirty heifers were weaned and assigned to (d 0): (1) BAS (n = 15; SecureCattle; IRSEA Group) or (2) Saline (n =...
Article
Full-text available
Simple Summary: The trace mineral nutrition of ruminants has been widely studied; however, most of the research has focused on the requirements of mature cattle, and the requirements of trace minerals for calves prior to weaning are poorly understood. This study investigated how two levels of trace mineral supplements provided to beef calves before...
Article
The incidence of and acreage burned by wildfires are globally increasing, with predictions of more devastating fires in the future. The impacts of wildfire smoke exposure on have been of research interest over the years, although the scope of the literature is limited. Evaluating the effects of wildfire smoke exposure is challenging because of the...
Article
Full-text available
The objective of this study was to evaluate the effects of supplementation of vitamin B complex on post-weaning performance of beef calves. The study was conducted during fall of 2023 at Eastern Oregon Agriculture Research Center (EOARC; Burns, OR). At weaning (d 0), 63 calves [Angus × Hereford; body weight (BW) = 252 ± 3.6 kg] were randomly assign...
Article
Full-text available
The objective of this study was to evaluate the effects of injectable trace minerals (ITM) administrations at strategic moments in the beef cattle production cycle. At calving, 50 primiparous cows (Angus × Hereford) and their calves were randomly assigned to 1 of 2 treatments: 1) Injectable trace minerals (ITM): cattle assigned to the ITM treatment...
Article
This experiment evaluated the effects of an analogue of bovine appeasing substance (BAS) on growth, stress, handling quality, and reproduction of Nellore heifers. Twenty-nine heifers [body condition score (BCS) = 4.84 ± 0.13; body weight (BW) = 371 ± 0.77 kg; 23 ± 2 months of age)] were assigned to 1 of 2 treatments: 1) Saline solution (0.9 NaCl; n...
Article
The objective of this study was to evaluate the impact of early progesterone removal on pregnancy rates to fixed-time artificial insemination (FTAI) in presynchronized beef cows. Postpartum beef cows (n = 922; body condition score = 4.9 ± 0.77; days postpartum = 77.3 ± 20.77 d) from 7 locations were enrolled in a completely randomized design. Withi...
Article
Full-text available
The objective of this study was to evaluate the effects of electrolyte solution supplementation on the performance and physiological responses of beef calves during a 45-d preconditioning phase. Forty Angus × Hereford steers [230.4 ± 4.8 kg body weight (BW)] were sorted into 20 pens (2 steers/pen) following weaning (d 0). Treatments were randomly a...
Article
Weaning and transport are the major stressor events for beef cattle production. Strategies to mitigate weaning stress responses and promote quick recovery of homeostasis are always warranted to improve welfare and productivity of beef cattle. This study evaluated the effects of an electrolyte drinking solution on the performance and physiological r...
Article
The western states of the U.S., home to some of the largest cattle operations in the country, are increasingly experiencing losses related to wildfire events. Wildfires are predicted to intensify with climate change; rising temperatures, droughts, and drier climatic conditions. Although wildfires do not directly endanger most humans and animals, th...
Conference Paper
Full-text available
This study evaluated the growth and immune function of Bos indicus-influenced offspring born to cows offered prepartum supplementation of bakery waste containing 2 concentrations of crude fat. On day 0 (~90 d before calving), 108 Brangus crossbred cows were stratified by body weight (BW; 551 ± 65 kg) and body condition score (BCS, 5.5 ± 0.9) and we...
Article
Full-text available
Simple Summary Weaning is one of the most stressful experiences for beef calves during their life cycle; however, it is a crucial practice for the production system. Calming pheromones can alleviate stress and reduce its negative impacts on behavior, growth, and the immune system. In this study, the administration of a bovine-appeasing substance en...
Article
Full-text available
The legalization of industrial hemp by the 2018 Farm Bill in the US has driven a sharp increase in its cultivation, including for cannabinoid extraction. Spent hemp biomass (SHB), produced from the extraction of cannabinoids, can potentially be used as feed for dairy cows; however, it is still illegal to do so in the US, according to FDA-CVM, due t...
Article
This study evaluated the growth and immune response of beef calves born from Bos indicus-influenced beef heifers provided pre- and post-partum heat abatement on pasture. At 83 ± 4 d prepartum (day 0), 64 Brangus crossbred beef heifers (~¼ Bos indicus) were stratified by body weight (BW; 454 ± 37 kg) and body condition score (BCS; 6.3 ± 0.28; scale...
Article
This study evaluated the growth and immune function of beef calves born to cows supplemented with bakery waste containing 2 concentrations of crude fat. On day 0 (~90 d before calving), 108 multiparous Brangus crossbred cows were stratified by body weight (BW; 551 ± 65 kg) and body condition score (BCS, 5.5 ± 0.9) and randomly allocated into 1 of 1...
Conference Paper
Full-text available
This study evaluated the impacts of heat abatement during pre- and postpartum periods on physiology and performance of beef heifers and their calves. On day 0, 64 Brangus beef heifers (21 mo of age) were stratified by their initial body weight (BW; 454 ± 37 kg) and body condition score (BCS; 6.3 ± 0.28) and then were allocated into of 1 of 16 bahia...
Article
The main objective of this study was to evaluate the effects of late gestation and early lactation supplementation of a vitamin B complex on the performance of beef cows and their calves. A total of 48 mature Angus x Hereford cows were randomly assigned (d0) to one of two treatments (1) vitamin (n = 24) or 1) control (n = 24) in early January, allo...
Article
Full-text available
A two-year study evaluated two different levels of trace mineral supplementation (Cu, Se, and Zn) to calves prior to weaning. Approximately 84 days prior to weaning, 24 calves/year (Angus × Hereford) were randomly assigned to one of two treatments: trace mineral supplementation following NASEM (2016) requirements (Control); and trace mineral supple...
Article
Full-text available
Wildfires are increasingly impacting ecosystem processes and ecological services provided by sagebrush rangelands in the western United States. Mitigating this problem involves actions taken before, during, and after fire. In recent years, there has been increased emphasis on prefire fuel management, including fuel breaks. Cattle grazing can be use...
Article
Full-text available
On public lands grazing allotments in the western US sagebrush steppe, cattle are generally excluded from burned pastures for 2 yr post fire. If only a portion of a pasture burns, the burned area may be fenced, allowing for cattle grazing to resume in the unburned portion. However, traditional wire-based fencing is often not an option due to expens...
Article
This 2-yr study evaluated the effects of winter vs. year-round supplementation of Bos indicus-influenced beef cows on cow reproductive performance and impact on their offspring. On day 0 of each year (approximately day 122 ± 23 of gestation), 82 to 84 mature Brangus cows/yr were stratified by body weight (BW; 475 ± 67 kg) and body condition score (...
Article
This 2-yr study investigated the timing of dried distillers grains (DDG) supplementation during the third trimester of gestation of Bos indicus-influenced beef cows and its impact on offspring performance. On day 0 of each year (84 d before calving), Brangus cows (n = 84/yr; cow age = 8 ± 3 yr) were stratified by initial body weight (BW; 482 ± 75 k...
Article
Full-text available
Wildfires are increasing in frequency and severity across the Western United States. However, there is limited information available on the impacts these fires are having on the livelihood of livestock producers and their animals. This work presents the results of a survey evaluating the direct and indirect impacts of the 2020 wildfire season on be...
Article
The objective of this study was to evaluate the effects of a synthetic analogue of the bovine appeasing pheromone (i.e. bovine appeasing substance; BAS) on growth and temperament of weaned calves grazing Capim-Marandú (Urochloa brizantha cv Marandú). At weaning (d 0), 86 calves (47 steers and 39 heifers; Aberdeen Angus ′ Nelore; 8 ± 1 mo) were stra...
Article
The objective of this study was to evaluate the effects of a synthetic analogue of the bovine appeasing pheromone (i.e. bovine appeasing substance; BAS) on growth and temperament of heifers. At weaning (d 0), 30 heifers (Aberdeen Angus ′ Nelore; 8 ± 1 mo) were stratified by body weight (199.8 ± 16 kg) and randomly assigned to receive a single dose...
Article
Full-text available
The trace mineral requirements of grazing beef cattle are often complicated by different environmental factors, such as the lack of specific trace minerals or the presence of trace mineral antagonists in forage. Nearly every region of the world has specific implications related to trace mineral nutrition of grazing cattle. Since forage is the most...
Article
Previous studies reported heightened innate and humoral immune responses among cattle administered injectable trace minerals (ITM) concurrent to immunogen challenge, thus suggesting a potential adjuvant-like activity of ITM. To pursue this concept further, a two-year study was conducted at the Mountain Research Station (North Carolina State Univers...
Article
Full-text available
Three experiments were conducted to evaluate the frequency of visits to a mineral feeder equipped with radio-frequency identification (RFID). In Exp. 1, twelve heifers (Braford, Brahman, and White Angus; n = 4/breed) were fitted with RFID ear tags and placed into a pasture with access to a RFID-equipped mineral feeder. Number of visits were greater...
Article
This study evaluated whether administration of lipopolysaccharide (LPS) at each trimester of gestation would alter the acute phase (APR) and metabolic responses to a postnatal LPS challenge in weaned heifers. Pregnant crossbred multiparous cows (n = 50) were randomized into prenatal immune stimulation (PIS; n = 24; administered 0.1 µg/kg BW LPS sub...
Article
This 2-yr study evaluated the effects of winter vs. year-round supplementation of Bos indicus-influenced beef cows on offspring feedlot performance. Brangus cows (82–84 cows/yr) were stratified by BW and BCS (475 ± 67 kg; 4.85 ± 0.73) and randomly assigned to bahiagrass pastures (13–14 cows/pasture). Treatments were randomly assigned to pastures (2...
Article
This 2-yr study investigated the timing of dried distillers grains (DDG) supplementation of Bos indicus-influenced cows during late gestation and its impacts on offspring performance. On d 0, 84 Brangus cows/yr were stratified by BW (482 ± 75 kg) and BCS (5.3 ± 0.8) and randomly assigned to bahiagrass pastures (14 cows/pasture). Treatments were ran...
Article
Full-text available
Three studies were completed to evaluate the effects of Cu, Zn, and Mn source on preferential intake, trace mineral status and rainfall-induced metal loss of salt-based mineral supplements. Mineral supplements were formulated to contain 2,500, 5,500, and 4,000 mg/kg of Cu, Zn, and Mn, respectively. Supplements differed only by source of Cu, Zn, and...
Article
Two studies were conducted at the Range Cattle Research Education Center (Ona, FL) to evaluate the preference of beef calves for different sources of trace minerals in low moisture cooked molasses blocks (MB; Exp.1) and to evaluate the effects of optimal trace mineral status at weaning while investigating the use of free-choice, MB in a limited int...
Article
A two-year study was conducted at the University of Florida – IFAS, Range Cattle Research and Education Center (Ona, FL) to evaluate differences in the metabolism of Cu and Se of Angus (Bos taurus) and Brahman (Bos indicus) cattle. Thirty-two pregnant beef cows (n = 8 Brahman and 8 Angus/year) were enrolled in the study in the first trimester of ge...
Article
Full-text available
This study evaluated the effects of injectable trace minerals (ITM) on antioxidant and immune response, resistance to endoparasites, health and growth of newborn Boer kids. Forty-six Boer kids [24 males and 22 females; 3.94±1.03kg of body weight (BW); 6.2±2.4 d of age] were enrolled in the study. Kids were stratified by type of birth (twins or sing...
Article
Full-text available
Maternal nutrition affects the development of the fetus and postnatal performance of the calf. Methionine may play a critical role in developmental programming and is likely deficient in beef cows fed low-quality forage. The objective of this study was to determine the effect of metabolizable methionine supply to lactating beef cows during the peri...
Article
This study evaluated the effects of year-round supplementation of molasses/urea or wheat middlings-based range cubes to mature cows on subsequent feedlot growth, immunity, and carcass characteristics of their steer progeny. On d 0, 82 mature Brangus cows were stratified by BW and BCS (433 ± 47 kg; 4.6 ± 0.77) and randomly allocated into 1 of 6 bahi...
Article
A 2-yr study evaluated the effects of molasses/urea supplementation during pre- and early postpartum, with or without methionine fortification, on growth and physiology of primiparous cows and their offspring. On d 0 of each yr, 36 cows were stratified by BW and BCS (396 ± 54 kg; 5.67 ± 0.66) and randomly assigned to 1 of 12 bahiagrass pastures (3...
Article
This study evaluated the growth, immunity, and carcass characteristics of beef steers born to cows offered dried distillers grains (DDG) at different timing during late gestation. Approximately 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ± 42 kg; 5.0 ± 0.14) and allocated into 1 of 6 bahiagrass pastures (14...
Article
A 2-yr study evaluated the impacts of supplementation frequency and amount on growth and puberty attainment of Brangus heifers. On d 0 of each year, 64 Brangus heifers were stratified by BW and age (244 ± 4 kg; 311 ± 18 d) and assigned to 1 of 16 bahiagrass pastures (4 heifers/pasture). Treatments were randomly assigned to pasture (4 pastures/treat...
Article
This 2-yr study evaluated the growth and puberty attainment of Bos indicus-influenced beef heifers offered two different post-weaning concentrate supplementation amounts and delivery frequencies. On day 0 of each year, sixty-four Brangus crossbred heifers were stratified by initial body weight (BW) and age (mean = 244 ± 22 kg; 314 ± 17 d) and assig...
Article
A 2-yr study evaluated the growth and post-vaccination immune response of beef calves born from heifers offered no supplementation or pre- and post-partum supplementation of sugarcane molasses + urea with or without methionine hydroxy analogue (MHA). On d 0 of each yr (57 ± 5 d prepartum), Brangus crossbred beef heifers (n = 36/yr; 20 to 22 mo of a...
Article
A two-year study was conducted to evaluate the differences in metabolism of Cu and Se among Bos indicus and Bos taurus cows. Thirty-two pregnant cows were enrolled in the study (n = 16/ year; 8 Brahman and 8 Black Angus). Cows were randomly assigned to individual pens at the beginning of the study, which was divided in 3 phases: depletion, repletio...
Article
This study compared the effectiveness of liquid sugarcane molasses/urea or wheat middlings-based range cubes supplementation on performance of beef cow-calf pairs. On d 0, 82 mature pregnant Brangus cows were stratified by BW and BCS (433 ± 47 kg; BCS = 4.6 ± 0.77) and randomly allocated into 1 of 6 bahiagrass pastures (13–14 pairs and 9.3 ha/pastu...
Article
The present study evaluated the performance of calves born from primiparous cows offered pre- and post-partum supplementation of sugarcane molasses/urea added or not with DL-methionine hydroxyl analog. On d 0 (~56 d before calving), 36 Brangus heifers were stratified by BW and BCS (345 ± 4.7 kg; 2 yr of age), and randomly allocated into 1 of 12 bah...
Article
This study evaluated the effects of timing of dried distillers grains (DDG) supplementation during late-gestation on performance of Bos indicus-influenced cow-calf pairs. At about 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ±42 kg; BCS = 5.0 ± 0.14) and assigned randomly to bahiagrass pastures (14 cows/pastu...
Article
This study evaluated the performance of Bos indicus-influenced beef heifers submitted to a puberty induction protocol and offered two supplementation amounts and delivery frequencies. Sixty-four Brangus crossbred heifers were stratified by BW and age (244 ± 4 kg; 311 ± 18 d) and assigned into 1 of 16 bahiagrass pastures on d 0. Treatments were rand...
Article
This study evaluated the performance of Bos indicus-influenced beef heifers submitted to a puberty induction protocol and offered two supplementation amounts and delivery frequencies. Sixty-four Brangus crossbred heifers were stratified by BW and age (244 ± 4 kg; 311 ± 18 d) and assigned into 1 of 16 bahiagrass pastures on d 0. Treatments were rand...
Article
This study evaluated the effects of timing of dried distillers grains (DDG) supplementation during late-gestation on performance of Bos indicus-influenced cow-calf pairs. At about 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ±42 kg; BCS = 5.0 ± 0.14) and assigned randomly to bahiagrass pastures (14 cows/pastu...
Conference Paper
This study compared the effectiveness of liquid sugarcane molasses/urea or wheat middlings-based range cubes supplementation on performance of beef cow-calf pairs. On d 0, 82 mature pregnant Brangus cows were stratified by BW and BCS (433 ± 47 kg; BCS = 4.6 ± 0.77) and randomly allocated into 1 of 6 bahiagrass pastures (13–14 pairs and 9.3 ha/pastu...
Conference Paper
The present study evaluated the performance of calves born from primiparous cows offered pre- and post-partum supplementation of sugarcane molasses/urea added or not with DL-methionine hydroxyl analog. On d 0 (~56 d before calving), 36 Brangus heifers were stratified by BW and BCS (345 ± 4.7 kg; 2 yr of age), and randomly allocated into 1 of 12 bah...
Conference Paper
This study evaluated the effects of timing of dried distillers grains (DDG) supplementation during late-gestation on performance of Bos indicus-influenced cow-calf pairs. At about 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ±42 kg; BCS = 5.0 ± 0.14) and assigned randomly to bahiagrass pastures (14 cows/pastu...
Conference Paper
This study evaluated the performance of Bos indicus-influenced beef heifers submitted to a puberty induction protocol and offered two supplementation amounts and delivery frequencies. Sixty-four Brangus crossbred heifers were stratified by BW and age (244 ± 4 kg; 311 ± 18 kg) and assigned into 1 of 16 bahiagrass pastures on d 0. Treatments were ran...
Article
Liver tissue is broadly considered to be a reliable indicator of Cu and Se status of cattle. However, due to difficulty in collection, blood concentrations are often used as a substitute. Therefore, this study was conducted to compare correlations among liver, plasma, and whole blood (WB) concentrations of Cu and Se. Paired liver and blood samples...
Article
A completely randomized design experiment evaluated the postnatal growth and nutrient digestibility of beef calves whose dams were supplemented with by-pass methionine or fishmeal in early gestation. From d -30 to 90, relative to start of the breeding season, Brangus × Angus lactating beef cows (n = 108) were provided 1 of 3 treatments: 1) Control...
Article
Full-text available
The objectives of the study were to evaluate the growth, physiological parameters, and liver trace mineral status of beef heifers provided low-quality warm-season forage and different forms (meal vs. block) of trace mineral-fortified supplementation. One hundred yearling Nellore heifers were blocked by initial BW (184 ± 2.5 kg) and randomly assigne...
Conference Paper
Liver tissue is broadly considered to be a reliable indicator of Cu and Se status of cattle. However, due to difficulty in collection, blood concentrations are often used as a substitute. Therefore, this study was conducted to compare correlations among liver, plasma, and whole blood (WB) concentrations of Cu and Se. Paired liver and blood samples...
Conference Paper
A completely randomized design experiment evaluated the postnatal growth and nutrient digestibility of beef calves whose dams were supplemented with by-pass methionine or fishmeal in early gestation. From d -30 to 90, relative to start of the breeding season, Brangus × Angus lactating beef cows (n = 108) were provided 1 of 3 treatments: 1) Control...
Article
Two experiments evaluated the effects of cinnamaldehyde and garlic oil on performance of grazing (Exp. 1) and drylot beef cattle (Exp. 2). Treatments in both experiments consisted of daily supplement fortification with (CNG) or without (CON) cinnamaldehyde and garlic oil (300 mg/d). In Exp. 1, 24 cow-calf pairs were allocated into limpograss (Hemar...
Article
Two studies were conducted at UF/IFAS, Range Cattle Research and Education Center to evaluate, (1) preferential intake of low moisture, cooked molasses blocks (LMB) differing in formulation only by source of Cu, Zn, and Mn, and (2) pre-weaning performance of calves consuming LMB with and without trace mineral fortification. In Exp. 1, 18 calves wer...
Conference Paper
Two studies were conducted at UF/IFAS, Range Cattle Research and Education Center to evaluate, (1) preferential intake of low moisture, cooked molasses blocks (LMB) differing in formulation only by source of Cu, Zn, and Mn, and (2) pre-weaning performance of calves consuming LMB with and without trace mineral fortification. In Exp. 1, 18 calves wer...
Article
Full-text available
This study evaluated the effects of gradual reduction in frequency of energy supplementation following vaccination on growth and measurements of innate and humoral immunity of beef steers. At 14 d post-weaning (d 0), Angus steers (n = 42; 200 ± 5 kg of BW; 175 ± 4 d of age) were stratified by BW and age, and randomly assigned into 1 of 14 drylot pe...
Article
Full-text available
A 2 × 2 factorial design study evaluated the impact of pre- vs. post-weaning vaccination and different post-weaning frequency of energy supplementation (daily vs. 3x weekly) on growth and immunity of beef calves. At 14 d before weaning (d -14), 48 Angus calves (24 steers and 24 heifers; 244 ± 33 kg; 196 ± 20 d) were stratified by BW and age, and ra...
Article
A 2 × 2 factorial design study evaluated the impact of pre- vs. post-weaning vaccination associated with different post-weaning frequency of energy supplementation (daily vs. 3x weekly) on growth and immunity of beef calves. At 14 d before weaning, 48 Angus-crossbred calves (24 steers and 24 heifers; 244 ± 33 kg; 196 ± 20 d) were stratified by BW,...
Conference Paper
This study evaluated whether 3 administrations of lipopolysaccharide (LPS) during gestation would alter the acute phase (APR) and metabolic responses to a postnatal LPS challenge in weaned heifers. Pregnant crossbred cows (n = 50) were randomized into prenatal immune stimulation (PIS; n = 24; administered 0.1 µg/kg BW LPS subcutaneously at 71 ± 2,...
Article
Our objective was to evaluate the effect of Cu, Zn, and Mn source on measures of 1) preferential intake of mineral-concentrated supplements and 2) mineral status and pre- and postweaning performance of beef calves. In Exp. 1, 4 trials were conducted to assess the effect of source of Cu (750 mg/kg; Trial 1), Zn (2,000 mg/kg; Trial 2), Mn (3,000 mg/k...
Article
Our objective was to evaluate the effect of Cu, Zn, and Mn source on measures of 1) preferential intake of mineral-concentrated supplements and 2) mineral status and pre- and postweaning performance of beef calves. In Exp. 1, 4 trials were conducted to assess the effect of source of Cu (750 mg/kg; Trial 1), Zn (2,000 mg/kg; Trial 2), Mn (3,000 mg/k...
Conference Paper
The objective of this study was to evaluate the effect of supplemental Se source during the periparturient, on Se status of cows and calves. 27 mature cows were randomly assigned to the follow treatments; no Se (Control; n = 6), Na selenite (n = 9) or High-Se hay (n = 12). Cows assigned to the Na selenite 45 and High-Se hay treatments were provided...
Article
Two experiments were conducted to evaluate the Se status of weaned calves (Exp. 1) and pregnant cows and newborn calves (Exp. 2) consuming bermudagrass [Cynodon dactylon (L.) Pers.] fertilized with Se. Sodium selenate was dissolved into water (8.8 g/L) and sprayed onto hayfields. Selenium-fertilized forage had greater (P ≤ 0.001) Se concentration c...
Article
This experiment compared insulin resistance parameters, milk production, and reproductive outcomes in: (1) lactating dairy cows consuming adequate or excessive energy, and (2) lactating dairy cows consuming excessive energy and receiving or not Cr-propionate supplementation. Seventeen primiparous and multiparous, non-pregnant, lactating Holstein co...
Conference Paper
The objective of this study was to evaluate the effect of Se fertilization of ‘Jiggs’ bermudagrass (Cynodon dactylon L.) hayfields on the forage Se concentration and subequent Se status of calves consuming the forage. Sodium selenate was dissolved into water (8.8 g/L) and sprayed onto bermudagrass hayfields at a rate of 257 g Se/ha and harvested 8...
Conference Paper
Abstract Text: The objective of this experiment was to compare performance and insulin resistance parameters in lactating dairy cows with adequate or excessive energy intake, as well as in lactating dairy cows with excessive energy intake receiving Cr-propionate supplementation. Seventeen primiparous and multiparous, lactating Holstein cows were ra...
Article
Two experiments evaluated milk production, serum progesterone and insulin, and reproductive performance of lactating Holstein cows receiving or not receiving Ca salts of polyunsaturated fatty acids (PUFA), or receiving Ca salts of PUFA at different daily frequencies. In experiment 1, 1,125 cows randomly distributed in 10 freestall barns were enroll...

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