Online citations, reference lists, and bibliographies.

Productive Performance And Reproductive Characteristics Of Morada Nova Male Lambs Fed With High-energy Diet

Andréa do Nascimento Barreto, André Guimarães Maciel E Silva, S. N. Esteves, M. A. C. Jacinto, W. Barioni Júnior, F. Z. Brandão, Messy Hannear de Andrade Pantoja, Daniela Botta, N. Romanello, A. P. Lemes, A. Giro, Alexandre Rossetto Garcia
Published 2019 · Biology, Medicine

Cite This
Download PDF
Analyze on Scholarcy
Morada Nova breed sheep are without wool, tropicalized, small-sized animals, known for their high-quality meat and skin. Their body development naturally depends on the genetic potential and adequate nutritional support, which suggests that the offer of high-energy density diets positively influences their productive indicators. Thus, the present study investigated the effect of a high-energy diet for the Morada Nova lambs on body development and testicular function, considering their histomorphometric characteristics and seminal quality. Forty-two males (19.2 weeks, 20.7 ± 3.5 kg) were equally divided into two groups and fed with 2.05 Mcal (G7, n = 21) or 2.37 Mcal (G24, n = 21) of metabolizable energy/day, equivalent to 7% and 24% above the minimum for growing lambs. The animals were confined for 23 weeks (W0 to W23). Weight and body score differed significantly from the W1 (P < 0.05). From the W5, thoracic perimeter, body length, wither height, and rump attributes were higher in G24 (P < 0.05). The scrotal circumference and testicular volume were higher in G24 from the W3 (P < 0.05). Although testosterone levels were not affected (P = 0.05), the highest energy intake increased the diameter of the seminiferous tubules and the development of the epididymal epithelium (P < 0.05). This positively influenced the seminal quality and reduced the minor defects (21.87% vs. 17.13%) and the total spermatic defects (26.34% vs. 21.78%, P < 0.05). Thus, it is possible to employ higher levels of dietary energy for Morada Nova young males to express higher productive efficiency and earlier reproductive attributes of interest.
This paper references
[The ultrastructure of some characteristic sperm defects and a proposal for a new classification of the bull spermiogram (author's transl)].
E. Blom (1973)
Phenotypic evaluation of sheep of the Texel breed raised in the upper part of the Pantanal
S. R. Paiva (2007)
Quantitative characteristics of the carcass of Morada Nova lambs fed different dietary ratios of forage and concentrate
Severino Gonzaga Neto (2006)
Postnatal development of the Sertoli cell barrier, tubular lumen, and cytoskeleton of Sertoli and myoid cells in the rat, and their relationship to tubular fluid secretion and flow.
L. Russell (1989)
Indigenous sheep breeds in Brazil: potential role for contributing to the sustainability of production systems
Edson Luis Azambuja Ribeiro (2016)
High systemic and testicular thermolytic efficiency during heat tolerance test reflects better semen quality in rams of tropical breeds
Priscila Reis Kahwage (2017)
2012.Management of pre-pubertal small ruminants: Physiological basis and clinical approach
I. Valasi (2012)
Prenatal testosterone excess alters Sertoli and germ cell number and testicular FSH receptor expression in rams.
P. Rojas-García (2010)
Effect of dietary energy on seminal plasma insulin-like growth factor-I (IGF-I), serum IGF-I and testosterone levels, semen quality and fertility in adult
W. Selvaraju (2012)
Level and period of realimentation to assess improvement in body condition and carcass quality in cull ewes
Randhir Singh Bhatt (2012)
Caliper and ultrasonographic measurements of bovine testicles and a mathematical formula for determining testicular volume and weight in vivo.
T. L. Bailey (1998)
Some effects of level of feeding and body condition upon sperm production and gonadotropin concentrations in the ram
J. E. Alkass (1982)
Laboratory Methods in Histotechnology. Armed Forces Institute of Pathology
E B Prophet (1992)
Influences of different dietary energy level on sheep testicular development associated with AMPK/ULK1/autophagy pathway.
Jing Pang (2018)
Características Anátomo-Estruturais da Pele de Ovinos (Ovis áries L.) Lanados e Deslanados, Relacionadas com o Aspecto Físico-Mecânico do Couro
M. C. Jacinto (2004)
A nutrition mathematical model to account for dietary supply and requirements of energy and other nutrients for domesticated small ruminants: The development and evaluation of the Small Ruminant Nutrition System
L. Tedeschi (2010)
Body composition and net energy and protein requirements of Morada Nova lambs
Marcus Roberto Góes Ferreira Costa (2013)
Influência dos níveis de concentrado sobre os cortes comerciais, os constituintes não-carcaça e os componentes da perna de cordeiros confinados
R. H. Clementino (2007)
Manipulating of the carcass and meat quality in lamb meat producing for the European Market II. Fatty acid composition of fat depots of lambs grown under two different production systems
V Banskalieva (2005)
Sperm morphology with reference to bull infertility Ludhiana
E. Blom (1983)
Níveis de energia na alimentação de cordeiros em confinamento e composição regional e tecidual das carcaças
Walter Piola Júnior (2009)
Ovine and caprine carcasses: Obtaining, evaluating and classifying, Uberaba
M. F. Cezar (2007)
BNational Research Council: NRC. Nutrient requirements of small ruminants^
Nrc (2007)
Características quantitativas da carcaça de cordeiros deslanados Morada Nova em função da relação volumoso:concentrado na dieta
S. Neto (2006)
Ovine and caprine carcasses: Obtaining, evaluating and classifying
M F Cezar (2007)
Effect of concentrate levels on retail cuts, non-carcass and leg components of crossbred feedlot lambs
R. H. Clementino (2007)
Preventive effects of supplemental dietary zinc on heat-induced damage in the epididymis of boars.
Zhaojian Li (2017)
Animal size and efficiency, with special reference to the breeding female
H. Fitzhugh (1978)
Laboratory methods in histotechnology
E. B. Prophet (1992)
Animal research: Reporting in vivo experiments: The ARRIVE guidelines
C. Kilkenny (2010)
Manipulating of the carcass and meat quality in lamb meat producing for the European Market II. Fatty acid composition of fat depots of lambs grown under two different production systems, Bulgarian
V. Banskalieva (2005)
Medidas biométricas obtidas in vivo e na carcaça de ovelhas de descarte em diferentes estágios fisiológicos
Rafael Silvio Bonilha Pinheiro (2010)
Possibilities of using morphometrics characteristics as a tool for body weight prediction in Turkish Hair Goats (Kilkeci).
Mehmet Akif Cam (2010)
Body measurements of west African dwarf sheep as parameters for estimation of live weight
O. S. Sowande (2007)
A New Look at the Statistical Model Identification
Effects of dietary energy density on feed intake, body weight gain and carcass chemical composition of Omani growing lambs.
Mahgoub (2000)
Associations between feed efficiency, sexual maturity and fertility-related measures in young beef bulls.
A. B. P. Fontoura (2016)
Effect of dietary energy on seminal plasma insulin-like growth factor-I (IGF-I), serum IGF-I and testosterone levels, semen quality and fertility in adult rams.
Sellapan Selvaraju (2012)
Genetic variability of the Brazilian hair sheep breeds
S. Paiva (2005)
Stereological study of postnatal testicular development in Blackbelly sheep.
J. Herrera-Alarcón (2007)
Do traditional sheep breeders perform conscious selection? An example from a participatory breeding program of Morada Nova sheep
Janaina Kelli Gomes Arandas (2017)
Parameters of the reproductive tract, spermatogenesis, daily sperm production and major seminal plasma proteins of tropically adapted morada nova rams.
Flávio Luis Leite Sousa (2014)
Effects of quantitative feed restriction and sex on carcass traits, meat quality and meat lipid profile of Morada Nova lambs
T. de Araujo (2017)
Morphometric and endocrine analyses of the effects of nutrition on the testis of mature Merino rams.
M. J. Hötzel (1998)
Respostas fisiológicas e gradientes térmicos de ovinos das raças Santa Inês, morada nova e de seus cruzamentos com a raça Dorper às condições do semi-árido nordestino
J. R. S. Santos (2006)
New insights into epididymal biology and function.
G. Cornwall (2009)
Effect of growth rate from 6 to 16 months of age on sexual development and reproductive function in beef bulls.
Leonardo F.C. Brito (2012)
Effect of the diet and genotype on body measurements and non-constituints of carcass of wooless lambs finished in a feedlot.
J. T. D. A. Filho (2007)
Cell proliferation and hormonal changes during postnatal development of the testis in the pig
L. R. França (2000)
Levels of energy in the feeding of feedlot lambs and the regional and tissue carcass composition
A. V. Pires (2011)
New address: Origin, Characteristics and perspectives
O Facó (2008)
Morphometric characterization and ponderal performance of buffalo calves raised on Brazilian Amazon.
A. R. Garcia (2010)
BColégio Brasileiro de Reprodução Animal: Manual for andrological examination and assessment of animal semen^
Concentração sérica de testosterona em touros Zebu
M. Santos (2000)
Sperm morphology with reference to bull infertility Ludhiana, First All-India Symposium on Animal Reproduction
E Blom (1983)
Methods of analysis for feed. Visconde do Rio Branco: Suprema
E Detmann (2012)
Nutritional aspects related to reproduction
A. V. Pires (2011)
Improving Bioscience Research Reporting: The ARRIVE Guidelines for Reporting Animal Research
C. Kilkenny (2010)
Physiologic responses and thermal variation of Santa Inês, Morada Nova sheep and their crossbreed with Dorper breed to the semi-arid northeastern of Brazil
J.R.S. Santos (2006)
Reproductive management of goats and sheep. From campus to field: Technology for sheep and goat production. 1 ed. Fortaleza: Gráfica Nacional
J V F Freitas (2005)
Biometric measurements obtained in vivo and in the carcass of culled ewes at different physiological stages
R.S.B. Pinheiro (2010)
Gonadal hormone modulation of hippocampal neurogenesis in the adult
L. A. Galea (2006)
An epididymis-specific β-defensin is important for the initiation of sperm maturation
C. Zhou (2004)
AnatomicalStructural Characteristics of Wool-On and Non-Wool Sheep Skins Related to the Physical-Mechanic Leather Aspects
M.A.C. Jacinto (2004)
Publisher's note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations
Animal reproduction, 7.ed
E.S.E. Hafez (2004)
Reproductive management of goats and sheep. From campus to field: Technology for sheep and goat production
J.V.F. Freitas (2005)
Effect of growth rate from 6 to 16 months of age on sexual development and reproductive function in beef
L. F. Brito (2012)
Biological and economic performance of feedlot lambs feeding on diets with different energy densities
Wandrick Hauss de Sousa (2012)
Management of pre-pubertal small ruminants: physiological basis and clinical approach.
Irene Valasi (2012)
Developmental changes in spermatogenesis, testicular carnitine acetyltransferase activity and serum testosterone in the ram.
B. Schanbacher (1974)
Reproductive characteristics of Ethiopian highland sheep. I. Genetic parameters of testicular measurements in ram lambs and relationship with age at puberty in ewe lambs.
Toé (2000)

This paper is referenced by
Semantic Scholar Logo Some data provided by SemanticScholar