Productive and reproductive performances of Santa Inês ewes fed diets supplemented with protected fat in the postpartum

Santos, Marcos Paulo dos; Godoy, Marcelo Marcondes de; Souza, Cleber Luiz de; Assis, Roberta de Moura; Sena, Cassius Vinícius Barbosa

doi:10.1590/s0100-204x2017000700009

Cited by 5 publications

(4 citation statements)

References 18 publications

(17 reference statements)

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“…Similarly, Espinosa, López-Molina, Ramírez-Godínez, Jiménez and Flores (1998) evaluated the effect of protected fat on the feeding of lactating sheep and didn't observe any difference in lamb performance. Moreover, Bona et al (1994) worked calcium salts from fatty acids at different levels in postpartum sheep and their offspring and verified no difference (P>0.05) for the average daily gain. These results corroborate those described by Costa et al (2011), who observed that Santa Inês lambs from ewes supplemented with protected fat didn't obtain differentiation in performance when compared to lambs from sheep that didn't receive fat.…”

Section: Resultsmentioning

confidence: 89%

Performance and maternal-offspring behavior of ewes fed protected fat from palm oil

Santos

Negri

Maeda

et al. 2020

SCA

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This study aimed to evaluate the performance and maternal-offspring behavior of ewes fed protected fat from palm oil. Forty multiparous ewes with an average age of three years were divided into two treatments, with or without protected fat supplementation (in concentrate). Every 15 days and at the time of lambing, weighing and body condition evaluation of sheep were performed, while lambs were evaluated at birth until weaning. Duration of post-weaning anestrus was obtained through the manifestation of estrus, detected by a vasectomized male. Data were submitted to analysis of variance. No difference was observed between supplementations for body weight, body condition score, and average daily gain during the gestation phase. Ewes fed protected fat had a superiority regarding the body score during the lactation phase. Lambs from ewes supplemented with protected fat were weaned faster, and ewes presented an early estrus. No difference was observed between treatments for maternal-offspring behavior. The use of fat during lactation showed improvement in productive (body condition score) and reproductive (shorter anestrus period) parameters. It also reduces the weaning age of lambs and does not alter maternal-offspring behavior.

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Section: Resultsmentioning

confidence: 89%

Performance and maternal-offspring behavior of ewes fed protected fat from palm oil

Santos

Negri

Maeda

et al. 2020

SCA

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“…In prepartum, supplementation of ADE vitamins improved energy metabolism ( 40 ). In the postpartum period, protected fat was not recommended because it reduced the probability of gestation ( 41 ). As for energy by-products, crude glycerin could be recommended for up to 10%, not affecting reproductive performance before and during the breeding season ( 42 ).…”

Section: Discussionmentioning

confidence: 99%

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

2022

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This study identifies the number of publications that presented technologies used in the production systems of Santa Inês sheep in the last 5 years (2017–2021) carried out in Brazil. Therefore, the objective was to identify where we are in terms of knowledge about technologies in different fields (health, reproduction, animal breeding, behavior and welfare, nutrition and feeding, forage and pasture, carcass and meat quality, and economics and management of livestock systems). After rigorous selection, 114 studies were appointed and classified by knowledge field, and the main approaches within each theme were evaluated, pointing out research gaps. Most technologies have been in northeastern states. However, government agencies should develop public policies to disseminate techniques in rural areas because the production system in this region is still subsistence. This study highlighted the need for works that present management practices and tools that impact the improvement of animal welfare. Agro-industrial by-products have been widely used as an alternative for sheep feeding. However, economic feasibility analyses are recommended with these foodstuffs to substantiate their use as an option to reduce production costs. There is a lack of research allusive to the management of production systems, especially those related to estimates of economic feasibility indicators.

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“…There was a low variation in mean birth weight between treatments and lambs had a mean birth weight of 4.3 kg, which made homogeneity in both groups. The mean lamb birth weight can be classified as adequate to sheep breeding patterns and is related to the good nutritional conditions of the matrices and to the reproductive genetics (Santos et al 2017).…”

Section: Productive Performancementioning

confidence: 99%

“…At this stage, the energy balance is negative and the sheep have to meet their maintenance and milk production requirements. As a result, at the same time as food intake and nutrients are being absorbed from the gastrointestinal tract, there is also mobilization of fat and protein from the adipose and muscular tissues (Santos et al 2017). Therefore supplementation (CP = 163.9 and TDN = 812.8 g/kg BW) offered during lactation was essential to meet the nutritional requirements of the matrices, independently of the supplementation received by lambs.…”

Section: Ingestive Behaviormentioning

confidence: 99%

Performance, Ingestive Behavior and Gastrointestinal Helminths Control of Suckling Lambs Supplemented in Creep-Fed and Not Supplemented in Tropical Pastures

Melo¹,

Ítavo²,

Ítavo³

et al. 2019

JAS

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The objective of this study was to evaluate the performance, ingestive behavior and gastrointestinal helminths control of suckling lambs raised on pastures of Brachiaria ssp. supplemented in creep-fed and not supplemented. Thirty-one lambs being 15 lambs in the control treatment (without supplementation) and 16 lambs in the creep feeding treatment (with protein-energetic supplementation) were evaluated. Performance of lambs supplemented was superior to lambs no-supplemented. Lambs without supplemented had weaning age of 81 days and an average gain of 194 grams. Lambs supplemented showed weaning age of 58 days and average daily gain of 268 grams. eggs per gram of stool (EPG) count in the control treatment was 4553, while in the creep feeding treatment the mean was 763. The morbidity rate caused by gastrointestinal helminths in the control treatment was 6.6% and there was no morbidity due to helminths in the treatment creep feeding. The morbidity rate due to hepatogenic intoxication was 46.6% in control and 12.5% in the lambs supplemented. The ingestion of protein-energy supplementation in creep feeding promoted an increase in productive performance of lambs, as well as increased resistance and tolerance to gastrointestinal infections and decreased cases of hepatogenic intoxication by ingestion of Brachiaria spp.

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Productive and reproductive performances of Santa Inês ewes fed diets supplemented with protected fat in the postpartum

Cited by 5 publications

References 18 publications

Performance and maternal-offspring behavior of ewes fed protected fat from palm oil

Performance and maternal-offspring behavior of ewes fed protected fat from palm oil

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

Performance, Ingestive Behavior and Gastrointestinal Helminths Control of Suckling Lambs Supplemented in Creep-Fed and Not Supplemented in Tropical Pastures

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