کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8982710 | 1109173 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of piglet birth weight on postnatal growth performance, tissue lipogenic capacity and muscle histological traits at market weight
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
High fecundity of sows induces a large within-litter variation in piglet birth weight. This study aimed to determine whether piglet birth weight influenced growth performance, tissue lipogenic capacity and muscle characteristics at slaughter. A total of 19 piglets were assigned to either light birth weight group (LBW: 0.80-1.10 kg, n=9) or heavy birth weight group (HBW: 1.75-2.05 kg, n=10). Light birth weight was associated significantly with reduced average daily gain during suckling and post-weaning periods only. At slaughter (102±0.6 kg), LBW pigs were 12 days older than HBW littermates (P<0.01). Plasma IGF-I concentration was reduced by 24% (P<0.05) in LBW pigs compared to HBW pigs. Subcutaneous fat depth, tissue lipid content and lipogenic capacity did not differ between groups. Fiber mean cross-sectional area was increased by 14% in semitendinosus, and by 20% in longissimus and rhomboideus muscles, respectively (P<0.05), in LBW pigs compared with HBW pigs. Total fiber number was reduced in both semitendinosus (â13%) and rhomboideus muscles (â20%, P<0.10) of LBW pigs compared with HBW pigs. Whether such histological modifications influence the sensory quality of pork remains to be established.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Livestock Production Science - Volume 93, Issue 2, 15 April 2005, Pages 137-146
Journal: Livestock Production Science - Volume 93, Issue 2, 15 April 2005, Pages 137-146
نویسندگان
F. Gondret, L. Lefaucheur, I. Louveau, B. Lebret, X. Pichodo, Y. Le Cozler,