Effects of water restriction on feed intake, digestion, and energy utilization by mature female St. Croix sheep

Hussein, Ali H.; Puchała, R.; Gipson, T.A.; Tadesse, Dereje; Wilson, Blake K; Goetsch, A.L.

doi:10.1016/j.vas.2020.100132

Cited by 6 publications

(6 citation statements)

References 31 publications

(50 reference statements)

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“…In accordance, feed intake was slightly decreased by water restriction in this study [ 21 ]. However, generally greater levels of cholesterol and triglycerides in period three than earlier could relate to increased digestibility and BW during water restriction [ 21 , 26 ]. It was also reported that complete water restriction for 4 d reduced thyroid hormone concentration in the blood of sheep [ 22 ], which has been negatively related to blood cholesterol and triglyceride levels [ 68 ].…”

Section: Discussionmentioning

confidence: 99%

“…Recently, the most common breeds of hair sheep in the USA, Dorper, Katahdin, and St. Croix, have been evaluated for resilience to stress factors that are expected to increase in importance with changing climate [ 21 , 26 , 27 , 28 , 29 , 30 ]. The selection of animals of these breeds in regions of the USA where they were first introduced over several decades may have affected some of their characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Restricted Availability of Drinking Water on Blood Characteristics and Constituents in Dorper, Katahdin, and St. Croix Sheep from Different Regions of the USA

Hussein

Patra

Puchała

et al. 2022

Animals

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Different hair sheep breeds originated from diverse climatic regions of the USA may show varying adaptability to water deprivation. Therefore, the objective of this study was to assess the effects of restricted availability of drinking water on blood characteristics and constituent concentrations in different breeds of hair sheep from various regions the USA. For this study, 45 Dorper (initial age = 3.7 ± 0.34 yr), 45 Katahdin (3.9 ± 0.36 yr), and 44 St. Croix (2.7 ± 0.29 yr) sheep from 45 farms in 4 regions of the USA (Midwest, Northwest, Southeast, and central Texas) were used. Ad libitum water intake was determined during wk 2 of period one, with 75% of ad libitum water intake offered during wk 2 of period two, and 50% of ad libitum water intake offered for 5 wk (i.e., wk 5–9) in period three. Water was offered at 07:00 or 07:30 h, with blood samples collected at 08:00 and(or) 14:00 h in wk 1, 2, 3, 4, 8, and 9 for variables such as hemoglobin and oxygen saturation and wk 2, 4, 6, 8, and 9 for concentrations of glucose and other constituents. The blood oxygen concentration at 08:00 h was 4.86, 4.93, and 5.25 mmol/L in period one and 4.89, 4.81, and 5.74 mmol/L in period three for Dorper, Katahdin, and St. Croix, respectively (SEM = 0.160; p = 0.001). Blood oxygen at 14:00 h was 4.37, 4.61, and 4.74 mmol/L in period one and 4.66, 4.81, and 5.46 mmol/L in period three for Dorper, Katahdin, and St. Croix, respectively (SEM = 0.154; p = 0.003). St. Croix were able to maintain a higher (p < 0.001) blood oxygen concentration than Dorper and Katahdin regardless of water availability. The pattern of change in blood concentrations with advancing time varied considerably among constituents. However, concentrations of glucose (55.3 and 56.2 mg/dL; SEM = 0.84), lactate (24.1 and 22.5 mg/dL; SEM = 0.79), total protein (7.08 and 7.17 g/dL; SEM = 0.0781), and albumin (2.59 and 2.65 g/dL in wk 2 and 9, respectively; SEM = 0.029) were similar (p > 0.05) between periods one and three. Conversely, concentrations of cholesterol (56.2 and 69.3 mg/dL; SEM = 1.33) and triglycerides (28.6 and 34.5 mg/dL in wk 2 and 9, respectively; SEM = 0.98) were greater (p < 0.05) in period three vs. 1. In conclusion, water restriction altered almost all the blood variables depending upon severity and duration of restriction, but the hair sheep breeds used from different regions of the USA, especially St. Croix, displayed considerable capacity to adapt to limited drinking water availability.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Restricted Availability of Drinking Water on Blood Characteristics and Constituents in Dorper, Katahdin, and St. Croix Sheep from Different Regions of the USA

Hussein

Patra

Puchała

et al. 2022

Animals

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“…Dehydration is positively correlated with heat stress, heat stress causes increased body temperatures which stimulates physiological responses like sweating and vasodilation to increase heat dissipation in the environment ( Akerman et al, 2016 ), which in turn increases water consumption by an animal. Notwithstanding the impacts of water stress on animal production, some studies have suggested that ruminants have developed mechanisms of coping with the negative effects of both heat and water stress ( Hussein et al, 2020 ).…”

Section: Potential Climate Change Variables Impacting On Sheep Geneti...mentioning

confidence: 99%

A review on the potential effects of environmental and economic factors on sheep genetic diversity: Consequences of climate change

Wanjala

Astuti

Bagi

et al. 2023

Saudi Journal of Biological Sciences

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“…It indicated significant difference in the nutritional status of animals among the treatment groups. Digestibility of a feed is not a fixed trait but is modified by various factors such as the level of feed intake, fodder variety (Avornyo, 2020) water consumption (Hussein et al, 2020), age and state of animal production.…”

Section: Intake and Digestibilitymentioning

confidence: 99%

Nutrient utilisation in Barbari goats as affected by levels of feed intake

S.K.¹,

M.T.²,

A.K.³

et al. 2022

JIVA

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To determine the effect of different levels of feed intake on the utilisation of nutrients, eight adult Barbari goat bucks (20.14 ± 0.74 kg mean body wt) were allotted to two sets of 4X4 Latin square design. The animals were fed on diets comprising of concentrate mixture and wheat straw (1:1 ratio) at four fixed levels of voluntary feed intake (95, 80, 60 and 40 per cent) in groups I, II, III and IV respectively. The experiment consisted of four 21-day feeding periods and four feeding levels. A metabolism trial was conducted during the last 8 days of each feeding period. During the study it was observed that lowering the level of feed intake decreased the efficiency of utilisation of dry matter, organic matter and fibre fractions in Barbari goats. Feed restriction also lowered the efficiency of utilisation of absorbed nitrogen and thus increased the proportion of nitrogen excreted in urine. From these results, it is evident that feed restriction adversely affects the nutrient digestibility of Barbari goats.

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Effects of water restriction on feed intake, digestion, and energy utilization by mature female St. Croix sheep

Cited by 6 publications

References 31 publications

Effects of Restricted Availability of Drinking Water on Blood Characteristics and Constituents in Dorper, Katahdin, and St. Croix Sheep from Different Regions of the USA

Effects of Restricted Availability of Drinking Water on Blood Characteristics and Constituents in Dorper, Katahdin, and St. Croix Sheep from Different Regions of the USA

A review on the potential effects of environmental and economic factors on sheep genetic diversity: Consequences of climate change

Nutrient utilisation in Barbari goats as affected by levels of feed intake

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