Results 1 to 10 of about 113,797 (163)

Calf and dam characteristics and calf transport age affect immunoglobulin titers and hematological parameters of veal calves [PDF]

open access: yesJournal of Dairy Science, 2022
: This study aimed to investigate effects of transport age of calves (14 vs. 28 d), and of calf and dam characteristics, on immunoglobulin titers and hematological variables of veal calves.
F. Marcato   +12 more
doaj   +8 more sources

Effect of Age at Castration on Beef Calf Performance

open access: yesEDIS, 2013
A study in Florida was conducted to examine the issue of age at castration to determine if castration timing resulted in significant differences in growth rate and weaning weight in nursing calves.
Amie Imler   +3 more
doaj   +7 more sources

Associations between preweaning calf feeding behaviors with age at first calving and lactational performance using an automatic calf feeder

open access: yesJDS Communications, 2023
The objective of this retrospective observational study was to determine whether preweaning calf behaviors and milk replacer (MR) intake from an automatic calf feeder were associated with age at first calving and first-lactation performance.
T.H. Swartz, C.S. Petersson-Wolfe
doaj   +4 more sources

An observational study of growth rate and body weight variance partition for United Kingdom dairy calves from birth to 20 weeks of age

open access: yesJDS Communications, 2021
This study estimates the birth weight and growth rate for UK dairy calves and partitions unexplained variability in the weight of calves aged up to 20 wk.
S.C. Archer
doaj   +1 more source

Assessing Performance and Safety of Feeding a Standardized Macleaya cordata Extract to Calves

open access: yesAnimals, 2022
This study examined the effects of Sangrovit®, a Macleaya cordata plant extract (MCE) preparation on feed intake, growth, blood chemistry, and tissue-residue levels of calves.
Ray A. Matulka   +4 more
doaj   +1 more source

A Survey on Calf Weaning Age in Hanwoo [PDF]

open access: yesJournal of Animal Science and Technology, 2011
Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, KoreaABSTRACTThe present survey was conducted to provide basic information on Hanwoo calf weaning age and farmer's understanding of early weaning. Eight hundred and sixty-two Hanwoo breeding farms from all nine provinces were surveyed via personal interviews.
Joon-Mo Yeo   +5 more
openaire   +1 more source

Efficiency in Cow-Calf Systems With Different Ages of Cow Culling [PDF]

open access: yesFrontiers in Veterinary Science, 2020
The bioeconomic efficiency of cow-calf systems was compared by a deterministic dynamic simulation. The simulation model considered stable cow-calf systems differentiated by the maximum age for culling cows, lifetime, culled at 4-13 years old. The necessary supply of metabolizable energy for the herd was established as natural grasslands, cultivated ...
Amir Gil Sessim   +4 more
openaire   +3 more sources

Effect of milk replacer program on calf performance and digestion of nutrients with age of the dairy calf [PDF]

open access: yesJournal of Dairy Science, 2016
Calves fed large amounts of milk replacer (MR) gain more body weight preweaning than calves fed less-aggressive programs; however, postweaning growth may be reduced. Limited research suggests that less than optimal digestion of the postweaned diet due to large amounts of MR with reduced dry feed intake preweaning may contribute to growth impairment ...
Chapman, Colleen E.   +6 more
openaire   +3 more sources

Epidemiological study on calf diarrhea and coccidiosis in dairy farms in Bahir Dar, North West Ethiopia

open access: yesIrish Veterinary Journal, 2020
Background A longitudinal prospective study was conducted from October 2017 to April 2018 on calf diarrhea and coccidiosis in dairy farms in Bahir Dar, North West Ethiopia with the objectives of determining the incidence of calf diarrhea and calf ...
Habtamu Tamrat   +4 more
doaj   +1 more source

Living alone reduces the decline of calf circumference among Chinese older adults: A 4-year longitudinal study

open access: yesFrontiers in Aging, 2022
Background: Calf circumference (CC) is regarded as a surrogate marker of skeletal muscle mass with high sensitivity and specificity for predicting sarcopenia.
Dong Wang, Jun Zhang
doaj   +1 more source

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