ORIGINAL PAPER
Digestibility, ingestive behaviour and performance of non-descript breed hair lambs of different sexual classes subjected to feed restriction
 
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1
Federal University of São Francisco Valley, Department of Animal Science – UNIVASF, Petrolina, Pernambuco 56300-990, Brazil
2
Federal University of Lavras – UFLA, Department of Zootecnia, Lavras, Minas Gerais 37200-000, Brazil
CORRESPONDING AUTHOR
R. T. de Souza Rodrigues   

Federal University of São Francisco Valley, Department of Animal Science – UNIVASF, Petrolina, Pernambuco 56300-990, Brazil; Federal University of Lavras – UFLA, Department of Zootecnia, Lavras, Minas Gerais 37200-000, Brazil
Publication date: 2014-06-11
 
J. Anim. Feed Sci. 2014;23(2):117–123
 
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ABSTRACT
The aim of this work was to evaluate the effect of feed restriction and sexual classes on digestibility, ingestive behaviour and performance of nondescript breed hair lambs. Forty-five animals (15 males, 15 castrated males and 15 females) were distributed in a completely randomized 3 x 3 factorial design, with three feeding levels: ad libitum feeding (positive energy balance), 70% restriction of the ad libitum intake (maintenance level) and 80% restriction of the ad libitum intake (negative energy balance). For all variables, there was no effect of sexual class nor interaction of sexual class with feeding levels (P > 0.05). Animals fed restricted diets had a higher rumination time per unit of dry matter intake (P < 0.05). Digestibility was higher in feed-restricted lambs (P < 0.05). Weight gain and feed efficiency were lower for feed restriction (P < 0.05). Sexual class did not affect intake, digestibility, ingestive behaviour, or performance. Feed restriction affected digestibility and ingestive behaviour.
 
CITATIONS (5):
1.
Energy and protein requirements of non-descript breed hair lambs of different sex classes in the semiarid region of Brazil
Rafael Torres de Souza Rodrigues, Mario Luiz Chizzotti, Samara Rodrigues Martins, Ivonete Ferreira da Silva, Mário Adriano Ávila Queiroz, Tiago Santos Silva, Karina Costa Busato, Aderbal Marcos de Azevêdo Silva
Tropical Animal Health and Production
 
2.
Net requirements of calcium, phosphorus, magnesium, and sulphur for growth of non-descript breed hair lambs of different sex classes in the Brazilian semiarid conditions
Ivonete Ferreira da Silva, Rafael Torres de Souza Rodrigues, Mário Adriano Ávila Queiroz, Mario Luiz Chizzotti, Marcus Antonio Zanetti, José Aparecido da Cunha, Karina Costa Busato
Tropical Animal Health and Production
 
3.
Ethology, physiological, and ingestive responses of sheep subjected to different temperatures and salinity levels of water
Patrício Leite, Jordânio Marques, Dermeval Furtado, Neto Lopes, Souza de, Nascimento do
International Journal of Biometeorology
 
4.
Effects of Parkia platycephala on feeding behavior, rumen health, blood markers, and physiological responses of lactating goats
Ianete Batista, Tairon Dias-Silva, Carlo Marques, Jacira Torreão, Leilson Bezerra, Ricardo Edvan, Veerasamy Sejian, Marcos Araújo
Revista Brasileira de Zootecnia
 
5.
‘Meta-analysis of dry matter intake and neutral detergent fiber intake of hair sheep raised in tropical areas’
Alessandra Oliveira, Camila Cunha, Elzânia Pereira, Stefano Biffani, Ariosvaldo Medeiros, Aderbal Silva, Marcos Marcondes, Peter Hansen
PLOS ONE
 
ISSN:1230-1388