Effect of dietary energy level on body weight, testicular development and semen quality of local barred chicken of the western highlands of Cameroon

Abstract

This study was designed to examine the effects of dietary energy levels on some growth and reproductive parameters of local barred chickens in Cameroon. For this purpose, One hundred and forty four day-old barred male chicks, weighing 28.33 g in average were randomly divided into 12 groups of 12 chicks each. Three feeding programs (FP) comprising each a starter diet from day old to 12 weeks (S0: 2800 Kcal/Kg; S1: 2900 Kcal/Kg; S2: 3000 Kcal/Kg) and grower diet from 13 to 20 weeks (G0: 2900 Kcal/Kg; G1: 3000 Kcal/ Kg; G2: 3100 Kcal/Kg) were used and designated FP1, FP2 and FP3 respectively. Each of the FP was randomly allotted of 4 groups of 12 birds in a completely randomized design. Throughout experiment (1 day old to 20 weeks), body weight was recovered every 2 weeks. At 20 weeks of age, roosters were sacrificed; semen characteristic was analyzed and testes were characterized. Between 2 to 10 weeks old, body weight of cocks fed with FP3 was significantly higher (P < 0.05) as compared to others FP. Inversely, from 12 to 20 weeks, body weight of cocks receiving FP1 was significantly higher (P < 0.05) than that of cocks receiving feeding programs 2 and 3. At 20 weeks, 100% of cocks fed on FP3 produced semen versus 66.66% and 16.66% respectively for those on FP1 and FP2. Semen volume and mass motility of cocks fed on FP3 or FP1 were significantly (P < 0.05) higher than FP2. It was concluded that FP1 had more suitable dietary energy levels for growth and reproduction of local barred cocks.

Review: Pengaruh Pakan Terhadap Kualitas Semen Ayam

“…Asupan energi tinggi dari pakan akan mempercepat pengembangan prapubertas, mempercepat terjadinya spermatogenesis, sehingga menyebab-kan terjadinya pubertas dini. Karakteristik semen ayam jantan yang diberi makan dengan energi makanan tertinggi (3100 KalME/kg) relatif lebih rendah, apabila dibandingkan dengan ayam yang diberi pakan dengan kandungan energi metabolis terendah (2800 KalME/kg) (Tadondjou et al, 2013). Brière et al (2011) melaporkan bahwa hipertermia intratestikuler yang dihasilkan dari asupan energi tinggi dapat menurunkan produksi spermatozoa.…”

Pengaruh Suplementasi Dl-Metionin Dan L-Lisin HCL Pada Pakan Standar Kafetaria Terhadap Berat Badan, Organ Dalam Dan Organ Reproduksi Ayam Kampung Fase Pullet

“…Berat dan volume testis tertinggi pada perlakuan yang mendapat suplementasi dlmetionin dan l-lisin HCl. Tadondjou et al (2013) menyatakan bahwa berat testis ayam kampung pada umur 13 minggu dan 20 minggu adalah 5,73 g/ekor dan 12,04 -15,35 g/ekor. Penambahan protein kasar setara rekomendasi NRC yaitu 15% (T1) tidak mampu meningkatkan berat dan volume testis jika dibanding dengan pakan sistem kafetaria.…”

“…Suplementasi DL-Metionin dan L-Lisin HCl menyebabkan terjadi keseimbangan nutrien dalam pakan. Tadondjou et al (2013) menyatakan bahwa keadaan lingkungan dan keseimbangan nutrien pakan mempengaruhi hipotalamus mensekresikan hormon yang relevan seperti Follicle Stimulating Hormone (FSH) dan Luteinizing Hormone (LH) untuk perkembangan epitel seminiferus dan proliferasi spermatogonia.…”

Influence of breed type and age on spermatological traits of Nigerian local chickens

“…These features include the appearance and volume of the semen, concentration, motility and morphology of the sperm (Galal, 2007). There have been numerous reports that the semen quality of cocks is influenced by several factors which include nutrition (Tadondjou et al, 2014), season (Ayo et al, 2007;Santiago-Moreno et al, 2011;Elagib et al, 2012), frequency of ejaculation (McDaniel and Sexton, 1977), endocrine disrupting chemicals (Rengaraj et al, 2015), photo/lighting period (Bajpai, 1963;Almahdi et al, 2014), physiology (Omeje and Marire, 1990), breed or strain (Molekwa and Umesiobi, 2009;Oke and Ihemeson, 2010;Tarif et al, 2013) and age (Cerolini et al, 1997;Shanmugam et al, 2012). The present study was aimed at investigating the influence of breed type and age on spermatological traits of two Nigerian local chicken breeds (normal feather and naked neck).…”