scholarly journals Effects of feeding dry glycerol on milk production, nutrients digestibility and blood components in primiparous Holstein dairy cows during the early postpartum period

2015 ◽  
Vol 13 (4) ◽  
pp. e0609 ◽  
Author(s):  
Farokh Kafilzadeh ◽  
Vahid Piri ◽  
Hamed Karami-Shabankareh
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Body Condition ◽  
Feed Intake ◽  
Postpartum Period ◽  
Body Condition Score ◽  
Nonesterified Fatty Acids ◽  
Early Postpartum Period ◽  
Early Postpartum ◽  
Holstein Dairy Cows

The aim of this study was to evaluate the glucogenic property of glycerol supplementation in the dairy cow’s diet. Sixty primiparous cows (control, n=30, and glycerol supplemented, n=30) were used to measure milk yield and components, blood hormone and metabolite profiles, and body condition score. Feed intake and apparent total-tract digestibility were also measured using 10 primiparous cows (control, n=5, and glycerol supplemented, n=5). Dry glycerol was top dressed at 250 g/day/cow from parturition to 21 days postpartum. Average feed intake, milk yield and components were not affected by glycerol supplementation. Apparent total–tract digestibility of organic matter and neutral detergent fibre were not influenced by dry glycerol supplementation, but lipid digestibility was greater (<em>p</em>=0.01) in cows fed glycerol. The serum concentration of glucose and insulin tended to be higher in dry glycerol-supplemented cows (<em>p</em>=0.1; <em>p</em>=0.06, respectively). While, serum concentrations of nonesterified fatty acids and <em>β</em>-hydroxybutyrate were not affected. Supplemented cows had lower body condition loss during weeks 1 to 5 after calving (<em>p=</em>0.09). The glucogenic effect of glycerol did not affect milk yield during the first 3 weeks of lactation. However, daily milk yield during the 13 weeks recording period was higher in the glycerol-supplemented cows (28.5 <em>vs</em>. 30.3 kg, <em>p&lt;</em>0.001). Percentages of cows cycling at the planned breeding date was greater (<em>p</em>=0.01) for cows fed dry glycerol. The results demonstrated that feeding dry glycerol as a glucogenic supply could be useful in saving body reserves and improving energy balance of primiparous Holstein dairy cows during the early postpartum period.

The effect of long-term daily administration of bovine somatotrophin on the performance of dairy cows over a second consecutive lactation

1989 ◽  
Vol 1989 ◽  
pp. 20-20
Author(s):  
R.F. Butterwick ◽  
T.E.C. Weekes ◽  
P. Rowlinson ◽  
D.S. Parker ◽  
D.G. Armstrong
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Milk Yield ◽  
Body Condition ◽  
Feed Intake ◽  
Body Condition Score ◽  
Post Partum ◽  
Reproductive Status ◽  
Condition Score ◽  
Bovine Somatotrophin

The objectives of the trial were to investigate the effects of bovine somatotrophin (BST) from either week 2 or week 10 post-partum on the yields of milk, milk components, body weight, body condition, feed intake, health and reproductive status of dairy cows over a second consecutive lactation. The results from the heifer lactation have been reported previously (Butterwick et al. 1988).17 Friesian dairy cows in their second lactation were continued on the same treatment as in their heifer lactation: daily subcutaneous injection of recombinantly derived bovine somatotrophin (BST;25mg/d) from either week 2 (BST2;n=6) or week 10 (BSTl0;n=5) post-partum, or injection of a buffer solution from week 2 of lactation (C;n=6). Treatments continued until week 42 of lactation or until 60 days prior to predicted calving date, if this occurred before week 42 of lactation. Initially cows were housed in cubicles and fed ad libitum through Calan doors, on a diet consisting of concentrate and grass silage (Table 1) on a 60:40 dry matter ratio. After day 110 of lactation cows were turned out to pasture but continued to receive concentrates according to milk yield and body condition score. Milk yield and feed intake were recorded daily, milk composition, body weight and body condition score were recorded twice weekly. Health and reproductive status were monitored over the lactation.

scholarly journals Potential hemo-biological identification markers to the left displaced abomasum in dairy cows

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Yuxiang Song ◽  
Juan J Loor ◽  
Chenchen Zhao ◽  
Dan Huang ◽  
Xiliang Du ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Energy Balance ◽  
Dairy Cows ◽  
Kidney Function ◽  
Early Warning ◽  
Postpartum Period ◽  
Body Condition Score ◽  
Production Performance ◽  
Early Postpartum Period ◽  
Early Postpartum

Abstract Background Left displaced abomasum (LDA) occurs at high frequency in the early postpartum period and can affect production performance of dairy cows. Clinical diagnosis of LDA is usually done by abdominal auscultation and percussion. The purpose of this study was to explore the potential applicability of blood biomarkers for early warning and diagnosis of LDA in dairy cows. Results Twenty early postpartum healthy cows and thirty early postpartum LDA cows of similar parity were used. A receiver operating characteristic curve (ROC) method was used to analyze the sensitivity of hematological biomarkers to LDA including energy balance metabolic biomarkers, liver/kidney function biomarkers, and minerals. A cut-off point was defined for each of the selected hematological biomarkers deemed sensitive markers of LDA. Compared with healthy cows, body condition score (BCS), dry matter intake (DMI) and milk production were lower in LDA cows. Among energy metabolism markers, serum non-esterified fatty acid (NEFA), β-hydroxybutyric acid (BHBA), insulin (INS), and revised quantitative insulin sensitivity check index (RQUICKI) levels were lower while serum glucagon (GC) was greater in LDA cows. Among the liver/kidney function biomarkers, activities of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), the ratio of AST/ALT and levels of total bilirubin (TBIL), direct bilirubin (DBIL), indirect bilirubin (IBIL), albumin (ALB), blood urea nitrogen (BUN), creatinine, and total protein (TP) were greater in LDA cows. Among minerals analyzed, serum Cl, Ca, and K were lower in LDA cows. After ROC analysis, it was determined that serum Ca, INS, RQUICKI, ALT, GGT, and creatinine are potential indicators for early warning and diagnosis of LDA for early postpartum dairy cows. Conclusions Dairy cows with LDA were under severe negative energy balance (NEB), had signs of liver damage and potentially lower insulin sensitivity. A combination of multi-hematological biomarkers including Ca, INS, RQUICKI, ALT, GGT and creatinine has the potential to help identify cows at risk of LDA in the early postpartum period.

scholarly journals Potential hemo-biological identification markers to the left displaced abomasum in dairy cows

2020 ◽  
Author(s):  
Yuxiang Song ◽  
Juan J Loor ◽  
Chenchen Zhao ◽  
Dan Huang ◽  
Xiliang Du ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Energy Balance ◽  
Dairy Cows ◽  
Kidney Function ◽  
Early Warning ◽  
Postpartum Period ◽  
Body Condition Score ◽  
Production Performance ◽  
Early Postpartum Period ◽  
Early Postpartum

Abstract Background: Left displaced abomasum (LDA) occurs at high frequency in the early postpartum period and can affect production performance of dairy cows. Clinical diagnosis of LDA is usually done by abdominal auscultation and percussion. The purpose of this study was to explore the potential applicability of blood biomarkers for early warning and diagnosis of LDA in dairy cows. Results: Twenty early postpartum healthy cows and thirty early postpartum LDA cows of similar parity were used. A receiver operating characteristic curve (ROC) method was used to analyze the sensitivity of hematological biomarkers to LDA including energy balance metabolic biomarkers, liver/kidney function biomarkers, and minerals. A cut-off point was defined for each of the selected hematological biomarkers deemed sensitive markers of LDA. Compared with healthy cows, body condition score (BCS), dry matter intake (DMI) and milk production were lower in LDA cows. Among energy metabolism markers, serum non-esterified fatty acid (NEFA), β-hydroxybutyric acid (BHBA), insulin (INS), and revised quantitative insulin sensitivity check index (RQUICKI) levels were lower while serum glucagon (GC) was greater in LDA cows. Among the liver/kidney function biomarkers, activities of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), the ratio of AST/ALT and levels of total bilirubin (TBIL), direct bilirubin (DBIL), indirect bilirubin (IBIL), albumin (ALB), blood urea nitrogen (BUN), creatinine, and total protein (TP) were greater in LDA cows. Among minerals analyzed, serum Cl, Ca, and K were lower in LDA cows. After ROC analysis, it was determined that serum Ca, INS, RQUICKI, ALT, GGT, and creatinine are potential indicators for early warning and diagnosis of LDA for early postpartum dairy cows. Conclusions: Dairy cows with LDA were under severe negative energy balance (NEB), had signs of liver damage and potentially lower insulin sensitivity. A combination of multi-hematological biomarkers including Ca, INS, RQUICKI, ALT, GGT and creatinine has the potential to help identify cows at risk of LDA in the early postpartum period.

scholarly journals Relationships between Body Weight and Milk Yield During the Early Postpartum Period and Bull and Technician and the Reproductive Performance of High Producing Dairy Cows

2012 ◽  
Vol 58 (3) ◽  
pp. 366-370 ◽  
Author(s):  
Pilar SANTOLARIA ◽  
Fernando L^|^Oacute;PEZ-GATIUS ◽  
Jos^|^eacute; Antonio S^|^Aacute;NCHEZ-NADAL ◽  
Jes^|^uacute;s Y^|^Aacute;NIZ
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Milk Yield ◽  
Reproductive Performance ◽  
Postpartum Period ◽  
Early Postpartum Period ◽  
Early Postpartum

scholarly journals Potential hemo-biological identification markers to the left displaced abomasum in dairy cows

2020 ◽  
Author(s):  
Yuxiang Song ◽  
Juan J Loor ◽  
Chenchen Zhao ◽  
Dan Huang ◽  
Xiliang Du ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Energy Balance ◽  
Dairy Cows ◽  
Kidney Function ◽  
Early Warning ◽  
Postpartum Period ◽  
Body Condition Score ◽  
Production Performance ◽  
Early Postpartum Period ◽  
Early Postpartum

Abstract Background: Left displaced abomasum (LDA) occurs at high frequency in the early postpartum period and can affect production performance of dairy cows. Clinical diagnosis of LDA is usually done by abdominal auscultation and percussion. The purpose of this study was to explore the potential applicability of blood biomarkers for early warning and diagnosis of LDA in dairy cows.Results: Twenty early postpartum healthy cows and thirty early postpartum LDA cows of similar parity were used. A receiver operating characteristic curve (ROC) method was used to analyze the sensitivity of hematological biomarkers to LDA including energy balance metabolic biomarkers, liver/kidney function biomarkers, and minerals. A cut-off point was defined for each of the selected hematological biomarkers deemed sensitive markers of LDA. Compared with healthy cows, body condition score (BCS), dry matter intake (DMI) and milk production were lower in LDA cows. Among energy metabolism markers, serum non-esterified fatty acid (NEFA), β-hydroxybutyric acid (BHBA), insulin (INS), and revised quantitative insulin sensitivity check index (RQUICKI) levels were lower while serum glucagon (GC) was greater in LDA cows. Among the liver/kidney function biomarkers, activities of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), the ratio of AST/ALT and levels of total bilirubin (TBIL), direct bilirubin (DBIL), indirect bilirubin (IBIL), albumin (ALB), blood urea nitrogen (BUN), creatinine, and total protein (TP) were greater in LDA cows. Among minerals analyzed, serum Cl, Ca, and K were lower in LDA cows. After ROC analysis, it was determined that serum Ca, INS, RQUICKI, ALT, GGT, and creatinine are potential indicators for early warning and diagnosis of LDA for early postpartum dairy cows.Conclusions: Dairy cows with LDA were under severe negative energy balance (NEB), had signs of liver damage and potentially lower insulin sensitivity. A combination of multi-hematological biomarkers including Ca, INS, RQUICKI, ALT, GGT and creatinine has the potential to help identify cows at risk of LDA in the early postpartum period.

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