Performance and carcass characteristics of lambs fed diets with fat and vitamin E

Pinto, Adriana Paiva Paula; Garcia, Iraídes Ferreira Furusho; Júnior, Izac Leopoldino; Pérez, Juan Ramón Olalquiaga; Alves, Nadja Gomes; Pereira, Idalmo Garcia

doi:10.1590/s1516-35982011001200039

Cited by 8 publications

(8 citation statements)

References 25 publications

(33 reference statements)

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“…Vitamin E supplementation also did not alter the performance variables. These findings corroborate the observations of Pinto et al, (2011), who investigated Santa Ines sheep supplemented with 500 mg/head/day of vitamin E and found no differences in performance variables by the addition of the vitamin. Supplementation can influence performance characteristics when diet levels do not reach the minimum level required for the body to Lightness (L*); intensity of yellow (a*); intensity of green (b*); shear force (SF); weight loss from cooking (WLC); C= castrated; S= supplemented with vitamin E; NS= not supplemented.…”

Section: Castration and Vitamin E In Lambssupporting

confidence: 92%

Effect of castration and vitamin E supplementation on carcass and meat quality of Santa Inês lambs

Torres-Geraldo

Sartori-Bueno

Costa

et al. 2019

Rev. colomb. cienc. pecu.

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Background: Carcass and sheep meat quality are influenced by several factors, such as race, age, slaughter weight, type of diet, and dietary supplementation. Objective: To evaluate the effect of castration and vitamin E supplementation on performance, carcass characteristics and meat of lambs slaughtered at 45 kg. Methods: Thirty-two male lambs (16 castrated and 16 not castrated) were fed diets with or without the inclusion of vitamin E. The animals had an average age of 180 ± 20 days and a mean weight of 25.1 ± 4.6 kg. Performance was evaluated for 56 days, and the animals were slaughtered when reaching a weight of 45 kg. The experimental design was randomized blocks based on initial weights, and variables were assessed by a 2x2 factorial design (castrated and intact, supplemented or not with vitamin E, with a probability of 5%). Results: Higher proportion (p<0.05) of visceral fat was found in castrated animals (kidney: 2.45%, inguinal: 0.57% and omental: 4.96%) than in intact animals (kidney: 1.25%, inguinal 0.27%. and omental 3.12%). The aged meat samples showed no color differences for any of the treatments, but there were differences in shear force for steaks aged for 7 days, where the castrated animals showed an average of 2.64 kgf and intact animals showed an average 3.29 kgf. The animals supplemented with vitamin E had lower shear forces in non-aged samples. Conclusion: Castration increased deposition of visceral and fat coverage but did not influence the cut yields and total carcass yield. The animals supplemented with vitamin E had lower shear forces in non-aged samples.

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Section: Castration and Vitamin E In Lambssupporting

confidence: 92%

Effect of castration and vitamin E supplementation on carcass and meat quality of Santa Inês lambs

Torres-Geraldo

Sartori-Bueno

Costa

et al. 2019

Rev. colomb. cienc. pecu.

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“…Chapman and Ward (1979) concluded that the pentose phosphate pathway is active in follicles to supply the high level of pentose required for the synthesis of nucleic acid for cell division and protein synthesis in the follicle. The changes in the carbohydrate content in the present study may be due to the presence of pearl millet, which is considered as a source of energy as well as the supplementation of the feed mixture with protected fat, that reduces the dry matter intake and increases the ether extract consumption (Pinto et al, 2011).…”

Section: Fig (1)mentioning

confidence: 84%

“…On another point of view, the use of protected fat in the diet influenced significantly consumption of all nutrients (Pinto et al, 2011). They also stated that the use of protected fat in the diet of Santa Ines lambs reduces the dry matter intake and increases the ether extract consumption.…”

Section: Fig (1)mentioning

confidence: 99%

“…This may be due to the increasing neutral detergent fibre content in this diet, which limits its consumption by animals (Givens et al, 2000) and due to anti-nutritional components of these forages (Aslani, 2004). The noninfluence of the protected fat on fibre growth is probably due to the fact that part of the fat source is inactive in the rumen and probably what was fermented in this compartment was not enough to negatively influence the food degradation so it could affect animal performance (Pinto et al, 2011).…”

Section: Fig (1)mentioning

confidence: 99%

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Impact of Usage Protected Fats on the Skin and Hair of Shami Does Fed on Halophytes Under Desert Conditions

Abdou

Hekal

Badawy

et al. 2015

Egyptian Journal of Desert Research

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he influence of halophytic diets with or without inclusion with protected fats was studied on the hair follicle dimensions and activity in the skin of Shami goats. Fortytwo adult Shami goats were divided into three groups (14 each) fed on diets with a ratio of 40% concentrate and 60% roughage and drink fresh water twice daily. The roughage in the first group, which representing the control was berseem hay, while in the other two groups were a mixture of 50% Atriplex halimus and Nummularia and 50% pearl millet with presence or absence of protected fats. Skin samples were taken to determine the hair follicle characteristics and activities. Results obtained indicated that feeding trails have small or no significant effects on the hair follicle dimensions or activities between tested and control groups and consequently elevated the negative effects of poor quality fibrous feed on follicle hair production and activity. A slight increase was found in the diameters of fibers from the secondary follicles in contrast with those of primary follicles, which showed a reversible trend. Meanwhile, the medulla thickness of the fibers produced from the primary follicles showed no significant changes corresponding to different feed trails. The histochemical evaluation revealed that significant differences in carbohydrate and protein contents of both primary and secondary follicle sheaths were found between the different treatment groups. The highest values of both carbohydrate and protein contents were recorded in the group which have protected fat in their diet. Animals fed on halophytes supplemented with protected fat were associated with higher sebaceous gland cell and nucleus diameters of both primary and secondary follicles. In an overall of conclusion, from the stand point of the skin follicle activity and hair production, the mixture of Atriplex halimus, Nummularia and pearl millet supplemented with protected fat could T

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“…On another point of view, the use of protected fat in the diet influenced significantly consumption of all nutrients (Pinto et al, 2011). The non-influence of the protected fat on fibre growth is probably due to the fact that part of the fat source is inactive in the rumen and probably what was fermented in this compartment was not enough to negatively influence the food degradation so it could affect animal performance.…”

Section: Table (1)mentioning

confidence: 99%

Skin structure and wool fibres characteristics of Barki sheep fed on biologically treated moringa stalks

2018

Aust. J. Basic & Appl. Sci.

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The present study was conducted at Maryout research station located at 35 kilometers southwestern Alexandria, Desert Research Center of Egypt. The study was carried out during the period from February to August 2014. Twenty adult Barki rams with average body weight 42.8 kg ± 0.46 were used in a complete randomized design with five groups (4 animals in each). The five groups were named according to the diet they were daily given: BH group: given berseem hay and used as a control group, MS group: given moringa stalks without treatment, MSF group: given moringa stalks treated with fungus (Trichodermareesei), MSY group: given moringa stalks treated with yeast; (Saccharomyces cervisiae) and MSB group: Given moringa stalks treated with bacteria (Cellulomonascellulasea). All groups were offered concentrate feed mixture (CFM) and roughages (60:40%) to cover their maintenance and productive requirements according to Kearl (1982). The CFM is composed of 28% cottonseed meal, 10% yellow corn, 44% wheat bran, 3% rice bran, 2% molasses, 3% limestone and 1% common salt production of Al-Marg manufacture. This CFM contained 14.95% crude protein and 65.64% TDN. Each type of the experimental roughages was offered to ad libitum. Water was offered to the animals twice daily through the duration of the experiment. Microbiological preparations: Microbiological preparations were undertaken in the laboratory of microbiology, Desert Research Center, Al-Matarya, Cairo, Egypt. Three different cultures medium were prepared, and used to inoculate a sterilized broth medium. The microbial strains were the bacteria Cellulomonascellulasea (c.cellulasea), the fungus Trichodermareesei (T.reesei) and the yeast culture Saccharomycescervisiae (S. cervisiae).The microorganisms were maintained on CzabekDox agar medium for T. reesei (Oxoid, 1982), yeast extract malt agar (YMA) medium for S.cervisiae (Pridham et al., 1958) and carboxymethyl cellulose (CMC) agar medium for C. cellulasea (Someya, 1980) at 30˚C until used. The inoculated mediums (cultures) were incubated at 30 ºC for 7 days for fungus and 3 days for yeast or bacteria. Large-scale application of each strain culture to chopped moringa stalks were prepared by adding 36 liters of one of the previous growth culture to 360 liters of tap water and mixed with 300 kg chopped moringa stalks. All roughages were mixed well, and then bagged, pressed in clean plastic bags holding 50kg, sealed, and kept in chamber for 21 days at room temperature. At the end of incubation period, lasted for 21 days, the treated materials were solar dried to stop activity of fungi and moisture content reached less than 10%, then packed and stored until used in feeding trials. The samples of feed were analyses for proximate analysis according to AOAC (1995). Cell wall constituents (NDF, ADF and ADL) were determined according to Van-Soest et al. (1991). Cellulose and hemicelluloses were calculated by difference. Histological preparations: Skin samples were taken from the mid side region which is considered as a standard follic...

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Performance and carcass characteristics of lambs fed diets with fat and vitamin E

Cited by 8 publications

References 25 publications

Effect of castration and vitamin E supplementation on carcass and meat quality of Santa Inês lambs

Effect of castration and vitamin E supplementation on carcass and meat quality of Santa Inês lambs

Impact of Usage Protected Fats on the Skin and Hair of Shami Does Fed on Halophytes Under Desert Conditions

Skin structure and wool fibres characteristics of Barki sheep fed on biologically treated moringa stalks

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