Functional liver stress in dairy sheep

Hrković-Porobija, Amina; Hodžić, Aida; Hadžimusić, Nejra

doi:10.5958/0973-9718.2017.00060.5

Cited by 11 publications

(8 citation statements)

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“…ALT and AST in serum would rise, when liver cells are damaged (McGill, 2016). The studies on milk goats indicated that heat stress reduced the activity of glutamate aminotransferase, glutamate aminotransferase and alkaline phosphatase in the milk goat serum (Hrkovic-Porobija et al 2017). In this experiment, it didn't observe the feeding niacin affect the level of serum ALT and AST and indicated that the liver wasn't damaged under mild heat stress.…”

Section: Impact Of Rumen-protected Niacin On Blood Indexesmentioning

confidence: 60%

Impact of Rumen-Protected Niacin on Milk Production Performance and Blood Biochemical Indexes of Dairy Cows Under Mild Heat Stress

Chen

Wang

et al. 2019

IJAR

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To study the influence of rumen-protected niacin on mild heat-stressed dairy cow, 30 healthy high-yielding dairy cows with similar parity were selected and randomly divided into three groups and were fed the rations with 0g/d, 6g/d and 12g/d rumen-protected niacin respectively. The results showed that the dairy cows were in mild heat stress during the experiment and the time of test day significantly affected the milk yield, FCM and respiration rate of cows. Rumen-protected niacin supplement neither altered the dairy cow’s body temperature, skin temperature and respiration rate, nor affected their milk yield and milk quality; however, it reduced the level of triglyceride and urea in serum.

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Section: Impact Of Rumen-protected Niacin On Blood Indexesmentioning

confidence: 60%

Impact of Rumen-Protected Niacin on Milk Production Performance and Blood Biochemical Indexes of Dairy Cows Under Mild Heat Stress

Chen

Wang

et al. 2019

IJAR

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“…The GGT serum concentration was reduced by the presence of palm kernel oil, and this enzyme is normally associated with liver status, being particularly linked to long-term liver injury [ 44 ]. Most likely, this increased dietary lipid content can have positive effects on the liver of lambs; however, all the mean values observed are within the range considered normal [ 45 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Increasing Levels of Palm Kernel Oil in the Feed of Finishing Lambs

Castro

Pimentel

Júnior

et al. 2022

Animals

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The aim of this study was to evaluate the effects of the inclusion of palm kernel oil (PKO) in a lamb diet on nutrient intake, digestibility, ingestive behavior, nitrogen balance, blood metabolites, rumen fermentation parameters, and animal performance. Three experimental trials were conducted. The treatments consisted of varying levels of PKO included in the diet, with PKOzero = no PKO inclusion, PKO1.3 = 1.3% addition, PKO2.6 = 2.6% addition, PKO3.9 = 3.9% addition, and PKO5.2 = 5.2% addition, based on the total dry matter (DM) of the diet. With the inclusion of PKO in the diet, linear decreases in DM (p < 0.001), crude ash (p < 0.001), crude protein (CP) (p < 0.001), neutral detergent fiber (NDF) (p < 0.001), nonfibrous carbohydrate (NFC) (p < 0.001), and total digestible nutrient (TDN) (p = 0.021) intake were observed, as was an increase in ether extract (EE) intake (p < 0.001). The digestibility coefficients of NDF and NFC were not affected by PKO addition to the diet. However, the digestibility of DM (p = 0.035), EE (p < 0.001), CP (p < 0.001), and TDNs (p < 0.001) increased when PKO was added to the lambs’ diet. Reductions in N intake (p < 0.001), fecal nitrogen excretion (p < 0.001), and microbial protein production (p < 0.001) were noted with increasing PKO levels. Serum cholesterol increased (p < 0.001) while serum GGT enzyme concentrations in the blood decreased (p = 0.048) with increasing PKO levels. PKO addition had no effect on total weight gain and average daily gain; however, feed conversion improved (p = 0.001) with increasing PKO levels. The intake, digestibility, ingestive behavior, and growth performance of lambs with PKO1.3 added to their diet were similar to animals that did not receive PKO, meaning that PKO could be an alternative energy source for growing lambs because it does not harm animal performance and can lower the cost of feed.

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“…Nevertheless, the study performed on the Indian sheep (Ashutosh et al 2001) suggested that higher cortisol values may be correlated not only with high ambient temperature. The highest positive correlation coefficient of cortisol was calculated with urea (r = 0.22-0.29, P <0.001) and TP (r = 0.25-0.29, P <0.001), a negative relationship between blood Gl and cortisol was found in both groups (r = -0.16-0.25, P <0.05-0.001) ( (Hrković-Porobija et al 2017). In the study, all samples were taken early in the morning, between 7:00-8:00 a.m. Cortisol secretion stimulates physiological modifications that enable an animal to tolerate the stress caused by a hot environment and the initial reactions of the animal to thermal stress are emotional rather than responding thermoregulation.…”

Section: Relation Of Blood Biochemical Parameters With Thi and Cortisol Concentrationmentioning

confidence: 98%

The Influence of Thermal Stress on Serum Biochemical Profile in Sheep

Autukait

Poškienė

Juozaitienė

et al. 2021

IJAR

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Background: Climatic factors, such as high temperature, high relative humidity, can induce a thermal stress in animals. The phenomenon of mammalian sensitivity to thermal stress, especially in small ruminants, is widely reported in the literature. The present study aimed to analyze temperature and humidity effects on serum metabolic profile and cortisol concentration in sheep. Methods: The experiment was conducted on 40 adult, non-lactating and non-pregnant Suffolk sheep from December 2018 to December 2019. The subgroups were formed by age (two groups): twenty sheep were about 1.5 years old (Group 1) and other twenty - about 3 years old (Group 2). Based on the value of the temperature-humidity index, the following three subgroups were formed: 1) temperature humidity index ≥20; 2) 20 greater than temperature-humidity index greater than 10 and 3) temperature-humidity index less than 10. Blood cortisol concentration and biochemical parameters were measured once per month on the same day, in identical animals. Result: The analysis of biochemical parameters revealed that Group 2 showed significantly higher values for creatinine, phosphorus, zinc and cortisol. All blood indicators, except iron, phosphorus and total bilirubin, were dependent on THI concentration. The highest positive correlation coefficient of cortisol was calculated with urea and total protein. It is concluded that both cortisol and biochemical parameters play a significant role in thermal stress reactions in the Suffolk sheep.

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Functional liver stress in dairy sheep

Cited by 11 publications

References 0 publications

Impact of Rumen-Protected Niacin on Milk Production Performance and Blood Biochemical Indexes of Dairy Cows Under Mild Heat Stress

Impact of Rumen-Protected Niacin on Milk Production Performance and Blood Biochemical Indexes of Dairy Cows Under Mild Heat Stress

Effects of Increasing Levels of Palm Kernel Oil in the Feed of Finishing Lambs

The Influence of Thermal Stress on Serum Biochemical Profile in Sheep

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