Crossbreeding locally adapted hair sheep to improve productivity and meat quality

Issakowicz, Juliano; Issakowicz, Ana Claudia Koki Sampaio; Bueno, Mauro Sartori; Costa, Ricardo Lopes Dias da; Geraldo, André Torres; Abdalla, Adibe Luiz; McManus, Concepta; Louvandini, Helder

doi:10.1590/1678-992x-2016-0505

Cited by 17 publications

(9 citation statements)

References 24 publications

(25 reference statements)

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“…Despite this problem related to susceptibility to haemonchosis, Dorper sheep have been introduced into tropical areas of Brazil in recent years, where they have quickly become widespread. Cross-breeding of Dorper with local breeds, especially Santa Ines hair sheep, resulted in lambs with reasonably acceptable meat carcass and with a satisfactory degree of resistance against gastrointestinal nematodes (AMARANTE et al, 2009;ISSAKOWICZ et al, 2018). No need for shearing is another advantage of Dorper sheep in tropical environments.…”

Section: Losses Caused By Gastrointestinal Nematode Infections In Dormentioning

confidence: 99%

Losses caused by gastrointestinal nematode infections in Dorper lambs under two nutritional status

Starling

Almeida

Fonseca

et al. 2019

Rev. Bras. Parasitol. Vet.

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The aim of this study was to evaluate the effect of two nutritional statuses on the productive performance of Dorper lambs naturally infected with gastrointestinal nematodes. Thirty-two lambs, grazing together on the same pasture, were allocated into four experimental groups: (G1) infected-supplemented diet, (G2) control-supplemented diet, (G3) infected-basal diet, and (G4) control-basal diet. Control animals received suppressive treatment with monepantel every two weeks, while precautionary anthelmintic treatments were given to all lambs of the infected groups with packed cell volume (PCV) <23%. There was reduction in the PCV means of all groups, which was more pronounced in the infected lambs that also presented reduction in total plasma protein values in comparison with the controls. Weight gain was affected by diet and infection status (P < 0.05). Daily body weight gain was 0.170 kg in the G1, 0.205 kg in the G2, 0.085 kg in the G3, and 0.116 kg in the G4. The cold carcass weight was 4.1% and 13.7% higher in controls in comparison with infected lambs, respectively, in the supplemented and basal diets. The infected groups, despite receiving precautionary anthelmintic treatments to prevent deaths due to haemonchosis, presented reduction in the production parameters in comparison with the controls.

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Section: Losses Caused By Gastrointestinal Nematode Infections In Dormentioning

confidence: 99%

Losses caused by gastrointestinal nematode infections in Dorper lambs under two nutritional status

Starling

Almeida

Fonseca

et al. 2019

Rev. Bras. Parasitol. Vet.

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“…Considering the characteristics of the fat deposits of the Morada Nova breed, crossbreeding of this breed with terminal sire breeds can improve performance characteristics in lambs (Issakowicz et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Predicting the carcass characteristics of Morada Nova lambs using biometric measurements

Costa

Lima

Ribeiro³

et al. 2020

Revista Brasileira De Zootecnia

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“…Dorper is the result of the cross between Dorset Horn and Blackhead Persian, original transboundary breeds from South Africa. It presents high productivity with excellent performance, conformation, and uniform carcasses associated with meat quality (Ocak et al 2016;Issakowicz et al 2018;Joy et al 2020). Locally adapted breeds, such as Santa Inês, showed small bodyweight sizes compared to exotic specialized breeds (Malhado et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Productive characteristics of feedlot Santa Inês and Dorper lambs: intake, digestibility, feeding behavior, performance, carcass traits, and meat quality

Cirne¹,

Brant²,

Rodrigues³

et al. 2021

Trop Anim Health Prod

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This study aimed to evaluate the intake, digestibility, feeding behavior, performance, carcass traits, and meat quality of feedlot Santa Inês (locally adapted breed) and Dorper (transboundary breed) lambs. Twenty non-castrated lambs were used (10 from the Santa Inês genetic group and 10 Dorper), with approximately 3 months of age and an initial body weight of 22.95 ± 2.1 kg (mean ± standard deviation), distributed in a completely randomized design. Nutrient intake and digestibility, feeding behavior, and liver metabolism enzymes were similar (P > 0.05) between genetic groups. Dry matter (DM) feeding and ruminating efficiency were higher (P < 0.05) in the Santa Inês genetic group. There was also no difference (P > 0.05) in the subjective evaluation and morphometric measurements. Genetic groups showed differences and trend to differences (P < 0.05) in performance and commercial cuts. The physicochemical characteristics, centesimal composition, and sensory attributes of the Longissimus lumborum muscle did not differ between the genetic groups (P > 0.05). The Santa Inês genetic group showed higher feeding efficiency and productive parameters when compared to Dorper lambs. Therefore, Santa Inês lambs have greater potential for meat production than Dorper lambs, when kept in the same breeding system as the feedlot.

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Crossbreeding locally adapted hair sheep to improve productivity and meat quality

Cited by 17 publications

References 24 publications

Losses caused by gastrointestinal nematode infections in Dorper lambs under two nutritional status

Losses caused by gastrointestinal nematode infections in Dorper lambs under two nutritional status

Predicting the carcass characteristics of Morada Nova lambs using biometric measurements

Productive characteristics of feedlot Santa Inês and Dorper lambs: intake, digestibility, feeding behavior, performance, carcass traits, and meat quality

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