Performance and carcass characteristics of lambs fed diets with increasing levels of Mimosa tenuiflora (Willd.) hay replacing Buffel grass hay

This study evaluated the performance and carcass characteristics of lambs fed diets with increasing levels of Mimosa tenuiflora (Willd.) hay replacing Buffel grass ( Cenchrus ciliaris ). Twenty-eight Santa Inês male lambs with an average body weight (BW) of 20.3 ± 1.49 kg(mean ± SD) were allocated i...

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Bibliographic Details
Published in:	Tropical animal health and production Vol. 49; no. 5; pp. 1001 - 1007
Main Authors:	Bandeira, Paulo André Vidal, Filho, José Morais Pereira, de Azevêdo Silva, Aderbal Marcos, Cezar, Marcílio Fontes, Bakke, Olaf Andreas, Silva, Uilma Laurentino, Borburema, Jucileide Barbosa, Bezerra, Leilson Rocha
Format:	Journal Article
Language:	English
Published:	Dordrecht Springer Netherlands 01-06-2017 Springer Nature B.V
Subjects:	Animal Feed - analysis Animal Nutritional Physiological Phenomena - drug effects Animals Biomedical and Life Sciences Body weight Body weight gain Body weight loss Carbohydrates Cattle Cenchrus - chemistry Cooling Diet Diet - veterinary Dietary Fiber - analysis Dry matter Feed conversion Feed efficiency Grasses Hay Hogs Lamb Life Sciences Male Meat - analysis Mimosa - chemistry Nutrients Physical growth Random Allocation Regular Articles Sheep, Domestic - growth & development Sheep, Domestic - physiology Slaughter Veterinary Medicine/Veterinary Science Weight Gain - drug effects Weight loss Zoology Carcass yield Legumes Tannin Feed efficiency Cenchrus ciliaris
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Summary:	This study evaluated the performance and carcass characteristics of lambs fed diets with increasing levels of Mimosa tenuiflora (Willd.) hay replacing Buffel grass ( Cenchrus ciliaris ). Twenty-eight Santa Inês male lambs with an average body weight (BW) of 20.3 ± 1.49 kg(mean ± SD) were allocated in individual stalls and distributed in a completely random design with four treatments (0, 20, 40, and 60 g/100 g total DM M . tenuiflora hay replacing Buffel grass hay in diet) with seven replications. M . tenuiflora hay at the level of 20% dry matter (DM) total replacing Buffel grass hay increased final weight ( P = 0.006), total weight gain ( P < 0.001), average daily weight gain (ADWG; P < 0.001), DM intake ( P < 0.001), and feed efficiency ( P < 0.001). Intake of crude protein, NDF ap , ADF ap , ash, ether extract, total and non-fibrous carbohydrates, and total digestible nutrients presented a positive quadratic effect with M . tenuiflora hay replacing Buffel grass hay and 40 g/100 g total DM level presented greater intake. There were positive quadratic effects by M . tenuiflora hay inclusion at 20 g/100 g total DM level on slaughtering weight ( P = 0.005), hot carcass weight ( P = 0.002), cold carcass weight ( P = 0.002), empty body weight ( P = 0.001), hot carcass yield ( P = 0.002), cold carcass yield ( P = 0.003), and increase linear on biological yield ( P = 0.003). There was no influence on cooling weight loss ( P = 0.284). M . tenuiflora hay may be included in lamb diets at amounts up to 20 g/100 g total DM substitution of Buffel grass hay because increase in the nutrients intake, growth performance, and carcass characteristics.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0049-4747 1573-7438
DOI:	10.1007/s11250-017-1291-y