Results 21 to 30 of about 109,136 (287)

Determination of some serum macroelement minerals levels at different lactation stages of dairy cows and their correlations

open access: yesScientific African, 2020
Minerals levels in blood affects animal performance, such as reproduction, immunity, and lameness. Minerals blood levels are recorded for all world tropics to be affected by lactation yield.
I.M.T. Fadlalla, Shadia A. Omer, M. Atta
doaj   +1 more source

The effects of parity and stage of lactation on hoof temperature of dairy cows using a thermovision camera [PDF]

open access: yesJournal of Central European Agriculture, 2018
The aim of the study was to determine the effects of the parity and stage of lactation on tissue changes of the dairy cows’ hooves (Holstein; n = 130) and their early detection using the thermovision camera.
Tina Bobić   +4 more
doaj   +1 more source

Determination of total potentially available nucleosides in bovine milk [PDF]

open access: yes, 2010
Bovine colostrum and milk samples were collected from two herds over the course of the first month post-partum, pooled for each herd by stage of lactation and total potentially available nucleosides were determined.
Gill, Brendon D.   +2 more
core   +2 more sources

Essential Trace and Toxic Element Content in Lacaune Sheep Milk during Lactation

open access: yesFoods, 2023
The aim of this study was to investigate the concentrations of essential trace and toxic elements in the milk of Lacaune sheep during lactation in intensive rearing systems.
Zvonko Antunović   +5 more
doaj   +1 more source

Blood Lipids of Cows at Different Stages of Lactation

open access: yesJournal of Dairy Science, 1968
Abstract The levels and uptake by the mammary gland of blood lipid components, acetate, ketone bodies, and glucose during early or late lactation were compared to the values during the dry period. During the dry period, levels of plasma phospholipids, cholesterol esters, and free cholesterol dropped to 38.0, 51.7, and 63.9%, respectively, whereas ...
P N, Varman, L H, Schultz
openaire   +2 more sources

Lysine Metabolism by the Mammary Gland of Lactating Goats at Two Stages of Lactation

open access: yesJournal of Dairy Science, 2000
An arteriovenous kinetics technique was used to monitor mammary gland lysine and protein metabolism in goats (n = 4) at two stages of lactation (80 +/- 17 vs. 233 +/- 14 DIM) in response to an i.v. infusion of lysine (Lys) plus methionine (Met). At each stage of lactation [2-15N] and [1-13C; 6,6-2H2] Lys kinetics were performed on the last day of 5-d i.
S J, Mabjeesh   +3 more
openaire   +2 more sources

Temporal changes of conjugated linoleic acid in milk from Sarda ewes with different milk fat secretion ability

open access: yesItalian Journal of Animal Science, 2010
Individual milk samples were weekly collected from 48 ewes during eight weeks. Ewes were at the second month of lactation and they were fed the same dietary regimen. The animals were grouped according to the amount of daily milk fat yield: A) 38-57g/d, B)
Pierlorenzo Secchiari   +5 more
doaj   +1 more source

Occurrence of preterm calving in Great Britain and associations with milk production and reproductive performance in dairy cattle [PDF]

open access: yes, 2018
This study describes the occurrence of preterm calving in Great Britain and evaluates its associations with subsequent milk production and reproductive performances and survival on farm of dairy cows.
Ali   +20 more
core   +1 more source

Dynamics of changes in some selected components of sheep milk in the course of lactation

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004
The objective of our study was to evaluate dynamics of changes in contents of some components of sheep milk, viz. dry matter (DM), fat (F), true protein (TP), casein (C), whey protein (WP) and lactose (L).
Pavlína Zajícová, Jan Kuchtík
doaj   +1 more source

Endocrine changes in sows weaned at two stages of lactation [PDF]

open access: yesReproduction, 1983
Plasma concentrations of LH, FSH, prolactin, oestradiol-17 beta and progesterone were determined in 18 multiparous sows at 4-h intervals for 15-18 days around weaning at 3 or 5 weeks post partum. Sampling at 10-min intervals for 6 h occurred every 2 days throughout the same period.
S, Edwards, G R, Foxcroft
openaire   +2 more sources

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