Effects of level of brackish water and salinity on feed intake, digestion, heat energy, ruminal fluid characteristics, and blood constituent levels in growing Boer goat wethers and mature Boer goat and Katahdin sheep wethers

Yirga, Hirut; Puchała, R.; Tsukahara, Yoko; Tesfai, K.; Sahlu, T.; Urge, Mengistu; Goetsch, A.L.

doi:10.1016/j.smallrumres.2018.05.004

Cited by 20 publications

(23 citation statements)

References 36 publications

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“…In addition, the lambs had a higher heat energy loss at a similar body energy retention than the goat kids. Consistent with these findings, the sheep in the study by Yirga et al (53) also had a higher heat production than the goats. However, the type of basal diet seems to be important for the ranking as well.…”

Section: Differences Between Lambs and Goat Kidssupporting

confidence: 64%

Effects of dietary grapeseed extract on performance, energy and nitrogen balance as well as methane and nitrogen losses of lambs and goat kids

et al. 2020

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The influence of phenol-rich dietary grapeseed extract on performance, energy and nitrogen (N) balance and methane production was determined in 16 lambs and 13 goat kids (Body weight: 20.5 and 19.0 kg, 2 months of age, Day 1 of study). Half of the animals received a concentrate containing grapeseed extract, the others received concentrate without grapeseed extract (total extractable phenols analysed: 27 vs. 9 g/kg dietary dry matter; concentrate and hay 1:1). Diets were fed for 7 weeks with 1 week for determining intake, excretion and gaseous exchange in metabolism crates and respiration chambers. Overall, there was an adverse effect of the phenolic diet on apparent N digestibility and body N retention. Faecal N loss as proportion of N intake increased while urinary N loss declined. Relative to N intake, total N excretion was higher and body N retention lower in goats than lambs. Diets and animal species had no effect on methane emissions. The saliva of the goat kids had a higher binding capacity for condensed tannins (CT). Goat kids on the phenolic diet had higher CT concentrations in faeces and excreted more CT compared to the lambs (interaction species × diet: P < 0·001). The lambs had overall higher (P < 0·001) urinary phenol concentrations than the goat kids (2.19 vs. 1.48 g/l). The negative effect on body N retention and lack of effect on methane emissions makes the use of the extract in the dosage applied not appealing. Species differences need to be considered in future studies.

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Section: Differences Between Lambs and Goat Kidssupporting

confidence: 64%

Effects of dietary grapeseed extract on performance, energy and nitrogen balance as well as methane and nitrogen losses of lambs and goat kids

et al. 2020

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“…Moura et al (2016) found no difference in dry matter intake by sheep consuming water with different levels of salinity. On the contrary, Yirga et al (2018) found a reduction in metabolizable energy intake in adult sheep with an increase in salt concentration in the water. Moreover, Fahmy et al (2010) reported that the voluntary intake of grasses was not affected by the level of water salinity, demonstrating the adaptive capacity of the species to drink saline water (Araújo et al, 2010).…”

Section: Resultsmentioning

confidence: 81%

Ingestive Behavior of Santa Inês Sheep Under Thermoneutrality and Thermal Stress Upon Consumption of Saline Water

et al. 2021

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The consumption of saline water in semiarid regions is a recurrent situation that can affect the ingestive behavior of small ruminants. This study evaluated the ingestive behavior of Santa Inês sheep maintained in a climatic chamber under two air temperatures-25 °C within the thermal comfort zone (TCZ) and 32 °C above the TCZ-and consuming water with three levels of salinity-2.0, 4.0, and 8.0 dS m-1. The experimental design was completely randomized in 2 × 3 factorial schemes, comprising two air temperatures and drinking water with three levels of salinity, in six replicates (animals). Regardless of air temperature, the consumption of saline water did not affect feed and water intake by the sheep; however, there was a decrease in feed intake and an increase in water intake as air temperature increased. Feed and water intake; feeding, rumination, and idle times; defecation frequency; and fecal production were not affected (P > 0.05) by the water salinity levels, whereas reduction in feed intake, feeding time, and rumination time and an increase in water intake and idle time were observed as air temperature increased. In summary, increasing air temperature negatively affected the ingestive behavior of the animals; however, water with salinity up to 8.0 dS m-1 did not affect their ingestive behavior and hence could be used for drinking.

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“…of this forage when supplying saline water to the animals. Yousfi et al (2016) and Yirga et al (2018) cite an increase in water consumption with an increase in the salinity level, and the second author points out that ruminal pH, ammonia concentration and several protozoa remained unchanged, along with an increase in creatinine levels and a reduction in triglycerides in the animals' blood, which may reflect changes in the animals' kidneys. Paiva et al (2017) observed an increase in water consumption in dairy goats with an increase in the water salinity level, but there was no change in the milk production of the animals.…”

Section: Resultsmentioning

confidence: 99%

Salinity-water levels on productive performance, physiological and behavioral responses of ½ Dorper x ½ Santa Inês crossbred sheep

Costa¹,

Furtado²,

Ribeiro³

et al. 2021

Semina: Ciênc. Agrár.

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The objective of this study was to evaluate the influence of four water salinity levels on productive performance, physiological and behavioral responses of confined sheep. Thus, 24 crossbred sheep, ½ Dorper x ½ Santa Inês were evaluated while receiving ration and water ad libitum. The experimental design was completely randomized, composed of four treatments (1.5; 3.0; 6.0 and 9.0 dSm-1) and six replicates. The water supply with salinity of up to 9.0 dSm-1 did not affect (P > 0.05) the physiological indexes, performance, or ingestive behavior of the animals, which were able to maintain normal physiological conditions even at times when the thermal comfort indexes were above the ideal. For voluntary water consumption, it was observed that there was a significant difference between treatments (P < 0.05), where animals consuming water with a conductivity of 1.5; 3.0 dSm-1 had lower consumption than those who received six dSm-1. The supply of water with a salinity of up to 9.0 dSm-1 did not affect the performance or the ingestive behavior of the animals, so waters with this salinity can be a valid alternative for crossbred sheep in the semi-arid region, as long as it is used seasonally and strategically.

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Effects of level of brackish water and salinity on feed intake, digestion, heat energy, ruminal fluid characteristics, and blood constituent levels in growing Boer goat wethers and mature Boer goat and Katahdin sheep wethers

Cited by 20 publications

References 36 publications

Effects of dietary grapeseed extract on performance, energy and nitrogen balance as well as methane and nitrogen losses of lambs and goat kids

Effects of dietary grapeseed extract on performance, energy and nitrogen balance as well as methane and nitrogen losses of lambs and goat kids

Ingestive Behavior of Santa Inês Sheep Under Thermoneutrality and Thermal Stress Upon Consumption of Saline Water

Salinity-water levels on productive performance, physiological and behavioral responses of ½ Dorper x ½ Santa Inês crossbred sheep

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