Impact of water restriction periods on carcass traits and meat quality of feedlot lambs in the Brazilian semi-arid region

Santos, Fernanda Maria dos; Araújo, Gherman Garcia Leal de; Souza, Larissa Lopes de; Yamamoto, Sandra Mari; Queiróz, Mário Adriano Ávila; Lanna, Dante Pazzanese Duarte; Moraes, Salete Alves de

doi:10.1016/j.meatsci.2019.05.033

Cited by 26 publications

(17 citation statements)

References 53 publications

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“…In addition, rumination, absorption and excretion generate heat production, so animals reduce dry matter intake in an attempt to reduce endogenous heat production because water reaching their body is insufficient for these mechanisms (Conte et al, 2018). This behavior is consistent with studies on the effect of water restriction on small ruminants (El Khashab, Semaida, & ABD El-Ghany, 2018; Jaber, Duvaux-Ponter, Hamadeh, & Giger-Reverdin, 2019; Santos et al, 2019). During water stress, small ruminants respond by reducing their feed intake culminating in weight reduction as a result of body mass and water loss.…”

Section: Resultssupporting

confidence: 74%

Water restriction periods affect growth performance and nutritional status of Santa Inês sheep in the Brazilian Semi-arid

Souza

Araújo

Turco

et al. 2022

Semina: Ciênc. Agrár.

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This study aimed to assess the growth performance and nutritional status of sheep under intermittent water supply by means of performance, intake, apparent digestibility of nutrients, water balance and nitrogen. Thirty-two intact male sheep (20.7 ± 2.63 kg, 8 months of age) were distributed in a completely randomized design with 4 water supply intervals via drinking trough (0h00, 24h00, 48h00, and 72h00), with 8 replicates. The extension in the water restriction period caused a reduction in the intake of dry matter, crude protein, neutral detergent fiber, digestible energy, and metabolizable energy (P < 0.05). The digestibility coefficients of dry matter, crude protein, and neutral detergent fiber showed a linear decrease with increasing periods of water restriction (P < 0.05). Water intake via food, total water intake, and water excretion via feces showed a linear increase in response to an increase in the water supply interval (P < 0.05). Water intake via drinking, metabolic water, total water excretion and water balance presented a linear decrease, with increasing periods of water restriction (P < 0.05). Nitrogen intake and absorbed nitrogen were influenced by water restriction, presenting a linear decreasing trend according to water supply periods (P < 0.05). Final weight, daily weight gain, and total weight gain, were influenced by the periods of water restriction, showing a linear reduction (P < 0.05). Feed conversion increased as the water restriction period increased (P=0.004). Intermittent water supply at intervals of up to 72h00 reduced nutrient intake and digestibility, resulting in a decrease in weight gain of the studied animals.

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Section: Resultssupporting

confidence: 74%

Water restriction periods affect growth performance and nutritional status of Santa Inês sheep in the Brazilian Semi-arid

Souza

Araújo

Turco

et al. 2022

Semina: Ciênc. Agrár.

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“…The WI:DMI ratio decreased as the level of water restriction increases. However, De Santos et al (2019) reported an increase in WI:DMI ratio in animals that underwent water restriction for 24, 48, and 72 h. The observed differences could be due to the fact that the animals had ad libitum access to water every 24 h at the end of each water restrictions’ duration. The animals under the present study had their water, restricted for the entire duration of the trial.…”

Section: Discussionmentioning

confidence: 93%

Performance, heat tolerance response, and blood metabolites of water-restricted Xhosa goats supplemented with vitamin C1

Akinmoladun

Fon

Okoh

2020

Translational Animal Science

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Water restriction in small ruminants is usually accompanied by a drop in feed intake, body weight, and disturbances in the normal internal milieu. However, attempts to lessen the burden of water stress with vitamin C (VC) supplementation have been greeted with conflicting reports. Therefore, this experiment was conducted to evaluate the effect of single and/or multiple VC supplementations in water-restricted Xhosa goats by evaluating their performance, heat tolerance, and blood metabolites. In total, 42 does, 12 mo old and with an average weight of 15.92 ± 2.12 kg were evaluated for 75 d. The does were distributed according to a complete randomized design into seven groups of six comparable animals: W0, without water restriction (control); W70, water restriction of 70% of ad libitum water intake (WI); W50, water restriction of 50% ad libitum WI; W70+, water restriction of 70% of ad libitum WI plus 3 g VC daily; W50+, water restriction 50% of ad libitum WI plus 3 g VC daily; W70++, water restriction of 70% of ad libitum WI plus 3 g VC and extra 5 g VC given every eighth day; and W50++, water restriction of 50% of ad libitum WI plus 3 g VC and extra 5 g VC given every eighth day. Goats under the W50 group were the most affected (P < 0.05) and the effect was more pronounced in their body condition scores (BCs). Weight loss due to water restriction was reduced by VC supplementation in treated groups. Changes in body thermal gradient, rectal temperature, cholesterol, and bilirubin were similar (P > 0.05) across the various experimental groups. The attenuation effect of VC was significant (P < 0.05) in responses to respiratory rate, Na+, K+, Mg2+, Cl−, Ca2+, and urea. Supplementation of VC (either single or multiple) did not significantly (P > 0.05) improve the effect of water restriction on BCs, FAMACHA, glucose, globulin, alanine aminotransferase, and high-density lipoprotein. The additive effect of multiple VC significantly influenced (P < 0.05) Na+ and Mg2+. Limited WI affects growth and other physiological parameters in Xhosa goats. However, supplementation of VC may be beneficial at modulating the stressful stimuli imposed by water stress.

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“…The absence of a significant effect in the morphometric measurements of the carcass (except for CCI) can be explained by the isometric development and parallel evolution of the carcass growth, which resulted in an anatomical harmony [33]. On the other hand, the low standard error of the mean suggest that the effect of environmental factors was not significant [34].…”

Section: Carcass Traits and Meat Qualitymentioning

confidence: 98%

Protected or Unprotected Fat Addition for Feedlot Lambs: Feeding Behavior, Carcass Traits, and Meat Quality

Alba

Júnior

Leite

et al. 2021

Animals

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This study aimed to evaluate the effect of the inclusion of protected or unprotected fats in the diet of feedlot lambs on feeding behavior, productive characteristics, carcass traits, and meat quality. Forty male Dorper × Santa Inês lambs (22.27 ± 2.79 kg) were randomly assigned to treatments in a completely randomized design. The experimental treatments consisted of five diets: no added fat (NAF), whole soybeans (WSB), calcium salts of fatty acids (CSFA), soybean oil (SO), and corn germ (CG). The total intake of dry matter (DMI) (p < 0.001) and neutral detergent fiber (NDFI) (p = 0.010) were higher in the CSFA and NAF diets. Feeding behavior, morphometric measurements, physicochemical characteristics, and centesimal composition of the Longissimus lumborum muscle were similar between treatments (p > 0.05). The CSFA diet provided higher production (p < 0.05) and better-quality carcasses. The inclusion of fat sources increased the concentration of polyunsaturated fatty acids (p < 0.05). The use of calcium salts of fatty acids in feedlot lambs’ diets provides better quantitative and qualitative characteristics of the meat and carcass.

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Impact of water restriction periods on carcass traits and meat quality of feedlot lambs in the Brazilian semi-arid region

Cited by 26 publications

References 53 publications

Water restriction periods affect growth performance and nutritional status of Santa Inês sheep in the Brazilian Semi-arid

Water restriction periods affect growth performance and nutritional status of Santa Inês sheep in the Brazilian Semi-arid

Performance, heat tolerance response, and blood metabolites of water-restricted Xhosa goats supplemented with vitamin C1

Protected or Unprotected Fat Addition for Feedlot Lambs: Feeding Behavior, Carcass Traits, and Meat Quality

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