Article
Agriculture, Dairy & Animal Science
R. Schmitt, L. Pieper, S. Borchardt, J. M. Swinkels, C. -c. Gelfert, R. Staufenbiel
Summary: This study assessed the effects of a single transdermal administration of flunixin meglumine (FM) in early postpartum Holstein Friesian dairy cows on milk yield, culling risk, and reproductive performance. The study found that FM treatment reduced systemic inflammation, leading to higher milk yield, reduced culling risk, and improved reproductive performance in the subsequent lactation.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
R. Rearte, S. G. Corva, R. L. de la Sota, I. M. Lacau-Mengido, M. J. Giuliodori
Summary: Poor udder health status has a negative impact on milk yield and reproductive performance in dairy cows. This study found that somatic cell count (SCC) is negatively associated with daily milk yield and the odds for conception in grazing dairy cows.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Zoology
Nurcan Karslioglu Kara
Summary: The aim of this research was to determine the relationship between age at first calving (AFC) and reproductive performance, first lactation milk yield and diseases in Simmental dairy cows bred under Turkey conditions. The study found a significant relationship between AFC and calving interval (CI) and days open (DO), with an optimum AFC interval of 684 <=(I) over dotBY < 30 days for minimum CI and DO. Although the relationship between AFC and diseases was not significant, the same interval was advantageous for low disease incidence. It can be concluded that planning reproductive management practices based on these results will benefit the optimal balance between economic benefit, animal health and milk yield.
PAKISTAN JOURNAL OF ZOOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Teshome Wondie Alemu, Debora E. Santschi, Roger I. Cue, Raj Duggavathi
Summary: The aim of this study was to evaluate the association between time and amplitude of elevated milk β-hydroxybutyrate (EMB) occurring within 42 d in milk and subsequent reproductive performance of lactating Holstein cows. The study found a negative association between the presence of EMB in milk and reproductive performance, while the effect of early and late EMB on reproductive performance was different.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Reproductive Biology
J. S. Stevenson
Summary: This retrospective study aimed to compare postpartum health, milk yield, reproductive traits, and daily physical activities in dairy cows during late gestation by examining their ear-surface temperatures. The results showed that temperature had an impact on certain postpartum health issues and daily activity times in cows.
Article
Agriculture, Dairy & Animal Science
Joaquin Chiozza Logrono, Ramiro Rearte, Santiago Gerardo Corva, German Ariel Dominguez, Rodolfo Luzbel de la Sota, Laura Vanina Madoz, Mauricio Javier Giuliodori
Summary: An observational study on highly supplemented grazing dairy cows showed that cows developing lameness in early lactation produce less milk and have poorer reproductive performance compared to healthy cows or those developing lameness later in lactation. Cows becoming lame after the first service had longer calving to pregnancy interval than healthy cows, while cows turning lame before the first service had even longer intervals. This study highlights the importance of the timing of lameness occurrence in dairy cows' lactation in relation to productive and reproductive outcomes.
Article
Agriculture, Dairy & Animal Science
Gan Li, Jian Chen, Dandan Peng, Xianhong Gu
Summary: Through transfer function modeling, a lag relationship between daily milk yield and heat stress indicators was identified, with daily milk yield responding to the maximum ambient temperature 1 day after the test day and lasting for 3 days. The strength of cross correlations between daily milk yield and maximum ambient temperature decreased gradually from 1 to 3 days, suggesting a declining lag response of daily milk yield. A transfer function model was established to track and predict the dynamic response of daily milk yield to maximum ambient temperature.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Reproductive Biology
Mohammad Bafandeh, Mohammad Javad Mozaffari Makiabadi, Faramarz Gharagozlou, Mehdi Vojgani, Emadeddin Mobedi, Vahid Akbarinejad
Summary: Multiparous dams have been found to produce offspring with greater fertility and higher AMH concentration. However, it is unclear if this phenomenon still applies to old multiparous cows. This study aims to evaluate the performance of offspring with different maternal parities.
Review
Food Science & Technology
Lily Jaiswal, Mulumebet Worku
Summary: Cow's milk contains potential allergens in the form of proteins, making some infants, children, and adults allergic to cow's milk. Strict exclusion of milk and other dairy products puts children with cow's milk allergy at higher nutritional risk.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Agriculture, Dairy & Animal Science
M. U. Akhtar, Hifzulrahman, M. Saadullah, T. N. Pasha, M. Abdullah, M. Ahmed, R. M. Shahbakht, M. N. Haque
Summary: The study indicates that prepartum controlled intake of a high protein diet can increase milk yield and lactation performance of dairy cows.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
M. J. Doran, F. J. Mulligan, M. B. Lynch, A. G. Fahey, N. J. Ryan, C. McDonnell, S. McCabe, K. M. Pierce
Summary: This study evaluated the effects of different cow genotypes and supplement crude protein concentration on milk production, finding that genotypes had a significant impact while the supplement CP concentration did not. Providing low CP concentration had no negative influence on milk production during the main grazing season, potentially offsetting any negative effects with increased pasture dry matter intake.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
M. Salamone, I. Adriaens, A. Vervaet, G. Opsomer, H. Atashi, V. Fievez, B. Aernouts, M. Hostens
Summary: This study aimed to develop a model that predicts the milk yield of dairy cows in the next lactation using data from the previous lactation. The results showed that the machine-learning models had better prediction performance compared to the benchmark models.
Article
Agriculture, Multidisciplinary
P. R. Shorten
Summary: The study investigated the use of a single milk flow meter to estimate milk yield for individual cows based on total milk flow in a dairy milking system. Results showed that the technology provided comparable estimates to traditional herd testing, demonstrating the feasibility of the single flow meter technology for estimating lactation milk yield and milk electrical conductivity for individual cows.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2021)
Article
Agriculture, Dairy & Animal Science
P. L. Venjakob, L. K. Neuhaus, W. Heuwieser, S. Borchardt
Summary: This study evaluated the association between prepartum days in the close-up group and milk yield, milk components, reproductive performance, and culling risk for Holstein dairy cows. The results showed a significant association between prepartum days and milk yield, fat and protein ratio, and somatic cell score in cows.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
V. M. R. Malacco, L. Beckett, S. Hilger, P. Doane, R. B. Reis, S. S. Donkin
Summary: The objective of these studies was to evaluate the effects of feeding a novel rumen-protected Lys (RP-Lys) product on lactational performance and Lys bioavailability in dairy cows. The results showed that increasing the supplemental doses of Lys had no impact on plasma Lys concentration and milk production performance. However, there were changes observed in the ratio of Lys to essential amino acids. Additionally, the bioavailability of the RP-Lys was lower than expected.
JOURNAL OF DAIRY SCIENCE
(2022)