scholarly journals Effects of Calcium Propionate on Milk Performance and Serum Metabolome of Dairy Cows in Early Lactation

2021 ◽  
pp. 115185
Author(s):  
Fan Zhang ◽  
Yiguang Zhao ◽  
Yue Wang ◽  
Hui Wang ◽  
Yuming Guo ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Milk Performance ◽  
Calcium Propionate

scholarly journals Effects of Calcium Propionate on Milk Performance and Serum Metabolome of Dairy Cows in Early Lactation

2021 ◽  
Author(s):  
Fan Zhang ◽  
Yiguang Zhao ◽  
Yue Wang ◽  
Hui Wang ◽  
Yuming Guo ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Dairy Cows ◽  
Milk Yield ◽  
Serum Alkaline Phosphatase ◽  
Negative Energy ◽  
The Other ◽  
Early Lactation ◽  
High Calcium ◽  
Milk Performance ◽  
Calcium Propionate

Abstract Background: Most of the dairy cows in early lactation suffer from a period of negative energy balance (NEB) and hypocalcemia metabolic disorders. Calcium propionate is a source of energy and calcium for alleviating NEB and hypocalcemia. The objective of the study was to investigate the changes of milk compositions and blood metabolites of postpartum dairy cows fed with calcium propionate for 5 weeks.Methods:Thirty-two multiparous Holstein cows after calving were randomly allocated to control (CON), low calcium propionate (LCaP), medium calcium propionate (MCaP) and high calcium propionate (HCaP) groups with 8 cows per group balanced with parity, milk yield and body weight. The dairy cows in the four groups were oral drenching with 0, 200, 350, 500 g/d calcium propionate per cow from calving to d 35 in early lactation, respectively.Results:The results showed that the milk yield in MCaP group was significantly higher than those in the other groups. At d 35, the somatic cell count (SCC) in MCaP group tended to be lower than those in other groups. Compared with the CON group, serum non-esterified fatty acid (NEFA) in MCaP and HCaP groups tended to decrease. The serum alanine aminotransferase (ALT) concentration in MCaP group was lowest among the four groups. The concentration of aspartate aminotransferase (AST) in HCaP group was significantly higher than the other groups. Feeding calcium propionate had no significant effect on serum calcium, phosphorus and magnesium concentrations. The serum parathyroid hormone (PTH) in HCaP group tended to decrease. The calcium propionate treatments significantly decreased the serum alkaline phosphatase (ALP) level. The MCaP treatment significantly decreased serum total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and catalase (CAT) activity, while increased the concentration of malondialdehyde (MDA) when compared with the other groups. The metabolomic results showed that calcium propionate significantly affected the bile acid compositions. Conclusions: It was concluded that the 350 g/d calcium propionate feeding level could significantly improve milk performance, alleviate body fat mobilization and bone calcium utilization, however decrease antioxidant capacity of dairy cows as well. The effect of calcium propionate on milk performance and serum metabolites in early lactation cows may be regulated through the serum bile acids metabolism.

Early lactation dairy cows: Development of equations to predict intake and milk performance at grazing

2009 ◽  
Vol 122 (2-3) ◽  
pp. 214-221 ◽  
Author(s):  
M. McEvoy ◽  
L. Delaby ◽  
E. Kennedy ◽  
T.M. Boland ◽  
M. O'Donovan
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Milk Performance

scholarly journals Calcium Propionate Increased Milk Parameters in Holstein Cows

2019 ◽  
Vol 47 (1) ◽  
Author(s):  
William Del Conte Martins ◽  
Sérgio Henrique Mioso Cunha ◽  
André Giarola Boscarato ◽  
Jonhatan Soares De Lima ◽  
Jair Dario Esteves Junior ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Energy Supply ◽  
Metabolic Disorders ◽  
Milk Protein ◽  
Early Lactation ◽  
Protein Levels ◽  
Calcium Propionate

Background: In the early lactation, dairy cows go through a period of negative energy balance because they do not intake enough food to supply the energetic demand of milk production. In this period, dairy cows are susceptible to metabolic disorders, although has little evidence that milk production contribute to increase diseases occurrence. Some alternatives to minimize metabolic disorders, that reduce milk yield, has been suggested, as increase energy density in the diet of dry cows 21 days before the parturition and include additives in the diet pre and post-partum. The aim of this study was to measure the productive parameters in dairy cows fed calcium salts as energetic source.           Materials, Methods & Results: Two Latin square 4x4 were used, whereas one comprehended of early lactation cows and the other of mid lactation cows. Animals of 2nd and 3rd parity were used only. Parity was distributed evenly among groups. The trial consisted of 4 groups with 4 treatments as follow: T1: 300 g of calcium acetate, T2: 200 g of calcium propionate, T3: 200 g of calcium salts of fatty acids, and T4: control without any calcium additive. The animals were milked twice a day, the first milking at 07:00 am and the second milking at 05:00 pm. Milk samples were collected in plastic containers with potassium dichromate. These samples were sent to the Laboratory of Milk Analysis of the Paranaense Association of Breeders of the Holstein Breed for analysis of fat, protein, lactose and total solids through the infrared method. Throughout the experimental period, the daily production of the animals under study was recorded. The production of milk (kg) was corrected to 3.5% fat using the formula PLA 3.5% = (0.432 + kg milk) + (0.1623 x kg milk x fat content).Discussion: Greater supply of glucose or propionate stimulate milk protein production, but the mechanism of this stimulation is unclear. Milk protein is dependent on energy supply, and deficient energy intake reduces milk protein levels. Calcium propionate provided enough energy supply and increased milk protein levels. The synthesis of lactose has influence in water absorption in mammary gland and lactose determine milk osmolarity. The lactose levels vary according blood glucose, somatic cells count and energy availability for physiological processes. In the literature, rarely has been found greater lactose concentration caused by feed intake, becoming very important the results found in this work. The diet energy concentration and consumption rate determine energy intake, which limit milk yield. Dairy cows in early lactation has marked increased of nutrient requirements to support milk production. Support milk lactose synthesis in the mammary gland is the one of responsible for increase of nutrients requirements. In this period, the glucose demands increases 2 times more than during late gestation. Propionate is converted to glucose in the liver and it will be support lactose synthesis in the mammary gland. Propionate supplementation in this work provided better energetic supply and it is possible to consider, evaluating the milk yield. It was concluded that calcium propionate increased milk parameters like: milk protein, lactose and milk fat. Holstein cows fed calcium propionate had greater milk yield than other groups.

Protein supplementation to early lactation dairy cows grazing tropical grass: Performance and ruminal metabolism

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Lucas Jado Chagas ◽  
Camila Delveaux Araujo Batalha ◽  
Marina Arruda Camargo Danés ◽  
José Maurício Santos Neto ◽  
Fernanda Lopes Macedo ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Protein Supplementation ◽  
Early Lactation ◽  
Tropical Grass

Erratum to “The use of indicators to assess the degree of mobilisation of body reserves in dairy cows in early lactation on a pasture-based diet” [Livest. Prod. Sci. 94 (2005) 199–211]

2006 ◽  
Vol 100 (2-3) ◽  
pp. 276
Author(s):  
C.E.F. Clark ◽  
W.J. Fulkerson ◽  
K.S. Nandra ◽  
I. Barchia ◽  
K.L. Macmillan
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Body Reserves

scholarly journals Supplementation with Partially Hydrogenated Oil in Grazing Dairy Cows in Early Lactation

2002 ◽  
Vol 85 (3) ◽  
pp. 580-594 ◽  
Author(s):  
G.F. Schroeder ◽  
G.A. Gagliostro ◽  
D. Becu-Villalobos ◽  
I. Lacau-Mengido
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Hydrogenated Oil ◽  
Grazing Dairy Cows ◽  
Partially Hydrogenated Oil
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