نتایج جستجو برای: milk yield and milk composition in milking ewes therefore
تعداد نتایج: 21775383 فیلتر نتایج به سال:
The purpose of this study was to determine the effect Barley Sprout Fodder (BSF) on milk production and composition Saanen goats Friesian ewes. Twenty does (1-year-old) twenty East ewes (1 5 years old), were selected for experiment, where each species divided into four treatment groups. Goat treatments consisted 0 (CRTL), 758 (BSF1), 1498 (BSF2) 2270 (BSF3) g wet BSF/d added an alfalfa/grass ha...
The aim of this review is to better understand the regulation of milk yield in response to once-daily milking and feed restriction. Glucose is the principal precursor for the synthesis of lactose (a major osmotic agent in milk), and participates in determining the milk volume produced. When applying these two breeding factors, reductions in milk yield are associated with a reduction in milk lac...
Milking frequency is known to affect milk production and lactation persistence in dairy cows. Despite this, the mechanisms underlying this effect are only partially understood. Previous work in dairy cows examining increases in milk yield due to increased milking frequency have identified changes in apoptosis and expression of genes regulating cytokine signaling. In addition, changes in mitocho...
Milk flow measurements on 124 cows were analyzed to deternfine how they are affected by vacuum level, pulsation rate, pulsation ratio of the milking maehine, and the breed, age, stage of laetation, and milk yield of the cow. Average rate of flow prior to machine stripping, yield during the first minute, and yield during the first 2 rain of milking were highly correlated with maxinmm rate of mil...
al implications for stakeholders: Automatic milking systems (AMS)s can be operated successfully within a grass based milk production system and milk yields comparable to many commercial batch milking systems can be achieved when grazing management is managed in order to control cow traffic The fact that milk yield/cow/day was not significantly affected by reducing milking frequency from 1.8 to ...
Milk samples from high and low milk producer Holstein cows, were obtained during the morning and afternoon milking over a one week period. Overall, 1064 samples were tested within 14 times sampling in Urmia, Iran. Milk macro-mineral concentrations in the morning milking and in low producers were greater than in the afternoon and in high producers. The highest and lowest concentrations were obse...
Abrupt weaning, a usual management in sheep productive systems, may provoke behavioural and physiological responses indicative of stress in ewes and lambs. Progesterone (P4) has anxiolytic and sedative effects through the union of its metabolites that contain 3α-hydroxyl group to the γ-aminobutyricacidA receptor. Our first aim was to determine whether P4 administration reduces the behavioural a...
Automatic in-line measurement of milk composition and milk yield could be a useful tool in management of the dairy herd. Data on milk components and milk yield provide information on milk quality alterations and cow health status but are also useful in planning feeding and breeding. In automatic milking systems, udder quarters are milked individually, enabling analysis and recording at the udde...
The objective of this study was to evaluate the effects of vegetable oil supplementation of ewe diets on the performance and fatty acid (FA) composition of their suckling lambs. Forty-eight pregnant Churra ewes (mean BW 64.3±0.92 kg) with their 72 newborn lambs (prolificacy=1.5) were assigned to one of four experimental diets, supplemented with 3% of hydrogenated palm (PALM), olive (OLI), soya ...
A review of the state-of-the-art sensing technology for automatic milking systems (AMS) suggests that while the sensing systems currently being used lack the sensitivity for automated diversion of ‘abnormal’ milk, they do provide sufficient information for motivated dairy producers to achieve milk quality that meets or exceeds national averages. Electrical conductivity and milk color are the mo...
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