Results 11 to 20 of about 134,959 (219)

Genetic Markers Associated with Milk Production Traits in Dairy Cattle

open access: yesAgriculture, 2021
Increasing milk production is one of the key concerns in animal production. Traditional breeding has gotten limited achievement in the improvement of milk production because of its moderate heritability.
Yulin Ma   +10 more
doaj   +1 more source

Effects of a wide range of dietary forage-to-concentrate ratios on nutrient utilization and hepatic transcriptional profiles in limit-fed Holstein heifers

open access: yesBMC Genomics, 2018
Background Improving the efficiency of animal production is a relentless pursuit of ruminant producers. Energy utilization and partition can be affected by dietary composition and nutrient availability.
Haitao Shi   +6 more
doaj   +1 more source

The day‐to‐day stability of the ruminal and fecal microbiota in lactating dairy cows

open access: yesMicrobiologyOpen, 2020
In this study, we examined differences between the microbiota of the ruminal fluid (DR) and feces (DF) from five lactating dairy cows over three consecutive days using 16S rRNA gene sequence‐based analysis.
Shuai Huang   +7 more
doaj   +1 more source

Role of Selenium and Vitamins E and B9 in the Alleviation of Bovine Mastitis during the Periparturient Period

open access: yesAntioxidants, 2022
Mastitis (inflammation of the mammary gland) commonly occurs in dairy cattle during the periparturient period (transition period), in which dairy cattle experience physiological and hormonal changes and severe negative energy balance, followed by ...
Muhammad Zahoor Khan   +9 more
doaj   +1 more source

Growth performance, blood metabolites, ruminal fermentation, and bacterial community in preweaning dairy calves fed corn silage-included starter and total mixed ration

open access: yesJournal of Dairy Science, 2023
: The objective of this study was to evaluate the effects of the inclusion of whole-plant corn silage (WPCS) in a starter or total mixed ration (TMR) on growth, blood metabolites, ruminal fermentation, and microbial community in preweaning dairy calves ...
Jun Zhang   +7 more
doaj   +1 more source

Effects of Age, Diet CP, NDF, EE, and Starch on the Rumen Bacteria Community and Function in Dairy Cattle

open access: yesMicroorganisms, 2021
To understand the effects of diet and age on the rumen bacterial community and function, forty-eight dairy cattle at 1.5 (M1.5), 6 (M6), 9 (M9), 18 (M18), 23 (M23), and 27 (M27) months old were selected.
Yangyi Hao   +8 more
doaj   +1 more source

Bacterial Composition and Interactions in Raw Milk and Teat Skin of Dairy Cows

open access: yesFermentation, 2022
The microbiota in raw milk plays an important role in the health of dairy cows and the safety of dairy products, which might be influenced by that in teat skin.
Hui Yan   +7 more
doaj   +1 more source

Competitive Analysis of Rumen and Hindgut Microbiota Composition and Fermentation Function in Diarrheic and Non-Diarrheic Postpartum Dairy Cows

open access: yesMicroorganisms, 2023
Postpartum dairy cows can develop nutritional diarrhea when their diet is abruptly changed for milk production. However, it is unclear whether nutritional diarrhea develops as a result of gut acidosis and/or dysbiosis. This study aimed to uncover changes
Yangyi Hao   +7 more
doaj   +1 more source

Analysis of Nutrient Composition, Rumen Degradation Characteristics, and Feeding Value of Chinese Rye Grass, Barley Grass, and Naked Oat Straw

open access: yesAnimals, 2021
The current study was designed to investigate the chemical composition, rumen degradation characteristics, and feeding value of three roughages commonly used in Asia as ruminant feed, including Chinese rye grass (CRG), barley grass (BG), and naked oat ...
Yulin Ma   +7 more
doaj   +1 more source

Rumen Fermentation, Digestive Enzyme Activity, and Bacteria Composition between Pre-Weaning and Post-Weaning Dairy Calves

open access: yesAnimals, 2021
To better understand the transition of rumen function during the weaning period in dairy calves, sixteen Holstein dairy calves were selected and divided into two groups: pre-weaning (age = 56 ± 7 day, n = 8) and post-weaning (age = 80 ± 6 day, n = 8 ...
Yangyi Hao   +8 more
doaj   +1 more source

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